Rolls-Royce Archives
| Identifier | Entry | ||
| Scan0 | Reliability of Lodge porcelain and K.L.G. mica ignition plugs for Goshawk engines. | ||
| View original record | R.R. 235a (100 T) (S.H. 798. 10-12-20) G. 2947 To Hs. from R. ORIGINAL R1/M1. 7. 22. IGNITION PLUGS - X1918 V4425 RE./GOSHAWKS. With reference to ignition plugs, recent experience has shewn that the… | ||
| Scan1 | Requesting a replacement dynamo with a mica supported commutator for a No.4 Goshawk engine. | ||
| View original record | R.R. 235s (100 T) (S.H. 79s. 10-12-20) G. 2948 ORIGINAL. URGENT. To Hs. from R. R2/M1. 7. 22. X4383. The commutator of which failed. I have received No.4.Goshawk without the dynamo, Will you please at… | ||
| Scan2 | Interior design issues found in a No.3 Goshawk limousine affecting driver comfort. | ||
| View original record | (2) I do not think any professional driver would shew the slightest inclination to complain when the parts are arranged in accordance with the instructions I had proposed should be issued. In the… | ||
| Scan3 | Confirming Mr. Royce's agreement to alterations related to the Goshawk Tool Kit and friction flywheel withdrawal. | ||
| View original record | R.R. 525a (100 T) (S.H. 788. 16-12-20) G. 2947 ORIGINAL To Hs. from E. c.c. to CJ. c.c. to Wor. c.c. to By. c.c. to Fp GOSHAWK TOOL KIT. X4083 In reply to your memo. Hs5/LG30.6.22. kindly note that… | ||
| Scan4 | Requesting the transfer and modification of various cars and chassis for design study and temporary use. | ||
| View original record | R.R. 235A (100 T) (S.H. 728. 10-12-20) G. 2947 ORIGINAL. To Hs. from R. c. to OJ. BJ. c. to Wor. R1/M5.7.22. RE. GOSHAWK 1. X3481 X3408 X4262 X1692 Will you please arrange for the above to be sent… | ||
| Scan5 | Modifications to the Goshawk control gear and steering box support, including corrected lever angles. | ||
| View original record | To Hy. from E. c. to EB. c. to Hs. [STAMP: ORIGINAL] [STAMP: 10 JUL 1922 HS] E1/M5.7.22. 3 GOSHAWK CONTROL GEAR TO SUIT ALTERED STEERING BOX SUPPORT, ALSO SHEWING CORRECT ANGLES FOR LEVERS ON ALL… | ||
| Scan6 | The design of a Goshawk valve rocker lever without a roller, referencing drawing Lec 1608. | ||
| View original record | To Dy. from E. c. to CJ. Wor. c. to Hs. Ep. ORIGINAL GOSHAWK VALVE ROCKER LEVER WITHOUT ROLLER. V4226 We send you herewith drawing No. Lec 1608 giving the particulars of the above. You will notice… | ||
| Scan7 | Requesting a test on a Goshawk longitudinal steering tube with specific spring buffer movements and strengths. | ||
| View original record | R.R. 225A (100 T) (S) R. 798. 10-12-20) G. 2947 To Hs. from R. c. to GJ. c. to By. ORIGINAL [STAMP: REC'D A/C DEPT JUL 1922] GOSHAWK & GENERAL STEERING. Owing to some investigations we have been… | ||
| Scan8 | Loosening of Goshawk engine suspension bolts and proposing a test to remedy it. | ||
| View original record | R.R. 835A (100 T) (S H. 728. 10-12-20) G. 2947 ORIGINAL To Hs. from E. c. to CJ. Wor. c. to By. Ep. RECEIVED 10 JUL 1922 E3/M5.7.22. RE. GOSHAWK ENGINE SUSPENSION. Y3535 With reference to your report… | ||
| Scan9 | Solution for a broken fixing on the Goshawk battery box caused by the battery being slack. | ||
| View original record | H.R. 925A (100 T) (S H. 798. 10-12-30) G. 3947 ORIGINAL. To Hs. from R. R5/M6.7.22 FC JUL 7 1932 RECEIVED X4378 RE. GOSHAWK BATTERY BOX. It has occurred to me that the cause of the broken fixing is… | ||
| Scan10 | Failure of a Goshawk steering box and proposed design modifications. | ||
| View original record | To O.J. H.S. Da. W.H. from R. ORIGINAL R3/M6.7.22. GOSHAWK STEERING BOX. RECEIVED X4264 I am now quite convinced that the steering box which broke on one of the early Goshawks was abominably badly… | ||
| Scan11 | Modification to the Goshawk side steering tube, based on drawing N.sch. 1308. | ||
| View original record | To Ry - from Da. c. to CJ. c. to Wor. c. to HS.✓ ORIGINAL. Da2/M7.7.22. GOSHAWK SIDE STEERING TUBE. Y4265 We send herewith N.sch. 1308 shewing a modified rear end for the side steering tube which Mr.… | ||
| Scan12 | The adoption of a glass window for the Goshawk carburetter's float chamber. | ||
| View original record | R.R. 325A (100 T) (S H. 79S. 10-12-30) G. 2047 ORIGINAL. To Hs. from E. c. to CJ. c. to Nor c. to By c. to Ep. RECEIVED X4226 GOSHAWK CARBURETTER. In reply to your memo. Hs5/LG3.7.22., it is intended… | ||
| Scan13 | Prohibition of bakelite commutators on dynamos for the Goshawk model. | ||
| View original record | To Wor. from R. c. to CJ. Hs. c. to EPC. Da. c. to Ep. E. c. to Hy. STAMP: ORIGINAL STAMP: RECEIVED [with clock face] STAMP: FC / 10.7.22. Handwritten: X.4383 DYNAMOS FOR GOSHAWK. In reply to your… | ||
| Scan14 | The investigation of a failing magneto from a Delage car. | ||
| View original record | To EFC. from DA. X 4334 - RE. SEV. MAGNETO OFF DELAGE. We are sending you under separate cover the magneto off this car. It's history is that it broke down when we were in Derby by burning the H.T.… | ||
| Scan15 | Failure of large porcelain ignition plugs on a Goshawk engine and comparing them with K.L.G. plugs. | ||
| View original record | R.R. 235A (100 T) (S.H. 738. 10-12-20) G. 3947 ORIGINAL RECEIVED JUL 13 1922 To Hs. from R. R2/M10.7.22. (under separate cover) X198 X4097 We are returning the 6 large porcelain ignition plugs which… | ||
| Scan16 | Experiment for the Goshawk steering column support, conveying suggestions from Mr. Royce. | ||
| View original record | R.R. 335A (100 T) (S.H. 782. 10-12-20) G. 2947 To Hs. from Da. ORIGINAL RECEIVED GOSHAWK STEERING COLUMN. X4264 Mr. Royce is very anxious to have results from the steering column support experiment.… | ||
| Scan17 | Potential causes for breakages in the Goshawk battery box fixing and suggesting a test. | ||
| View original record | R.R. 235a (100 T) (S.H. 798. 10-12-20) G. 2348 To Hs. from Da. [STAMPED: ORIGINAL] GOSHAWK BATTERY BOX FIXING. X 4378 With reference to Hs1/LG10.7.22., have you broken any more boxes with this… | ||
| Scan18 | Shipment of a dynamo and a request for additional parts for a Goshawk vehicle. | ||
| View original record | R.R. 235A (100 T) (S H. 728. 10-12-20) G. 2947 ORIGINAL To Hs. from R. c.c. to Wor. R6/M12.7.22. RE. NO. 4. GOSHAWK. X 4383 X4091 In sending the dynamo for No. 4. Goshawk, please do not forget that… | ||
| Scan19 | With a sketch concerning the Goshawk clutch's centring bush and a query from Mr. Royce. | ||
| View original record | R.R. 235A (100 T) (S H. 798. 10-12-20) G. 2947 To Hs. from St. (for R.) ORIGINAL. [STAMP: RECEIVED JUL 13 1922] GOSHAWK CLUTCH. X4244 We understand that in these clutches originally the centring bush… | ||
| Scan20 | Proposed modification to the Goshawk luggage grid and requesting a price from Derby. | ||
| View original record | To Ey. from Da. c. to CJ. c. to Wor. c. to Hs. ✓ ORIGINAL Dal/M13.7.22. GOSHAWK. - LUGGAGE GRID. V3524 We send herewith our print of N.sch . 1300, to which we have added in pencil a transverse… | ||
| Scan21 | Drawing No. LeC 1611 for the Goshawk spring drive extracting nut, to be put through for standardisation. | ||
| View original record | To By. from E. c. to CJ. Wor. c. to Hs. Ep. ORIGINAL RECEIVED 18 JUL 1922 GOSHAWK SPRING DRIVE EXTRACTING NUT. X4083 In response to Mr. Hives memo. - Hs5/LG6.7.22 - we send you herewith drawing No.… | ||
| Scan22 | Viability of materials for building a moulded commutator, considering heat resistance and durability. | ||
| View original record | R.R. 835A (100 T) (S. H. 798. 10-12-20) G. 3947 To (EFO. C.W.P. I.E. C.L. P.W.) from R. STAMPS: [ORIGINAL], [RECEIVED 18 JUL 1922 F C] v4333 RE. COMMUTATOR. We shall not think of using a commutator… | ||
| Scan23 | Conclusion regarding the temperature rise in a starter motor based on its short duty cycle. | ||
| View original record | R.R. 235A (100 T) (S.H. 78S. 10-12-20) G. 2047 (2) that the duty is so short that there is no serious rise of temperature in a starter motor, which is in reasonably good condition and a fair… | ||
| Scan24 | Evaluation of Amplokon spark intensifiers, concluding they are not worthwhile for the company's engines. | ||
| View original record | COPY. EFC8/T17.7.22. To Wd. From EFC. c. to ROY. X.3581 - AMPLOKON SPARK INTENSIFIER. We now returning the two sets (each of four) of Amplokon spark intensifiers, and should be glad if you will have… | ||
| Scan25 | Trials of 'amplokons' with a magneto, assessing their effect on sparking performance under various conditions. | ||
| View original record | PB.42. COPY July 4th 1922. Trial of Amplokons with Magneto. These tests were made with the amplokons submitted, in connection with a U.S.A. Bosch Z.R.6 magneto. The effect of these was first tried on… | ||
| Scan26 | The testing and analysis of Amplokon spark intensifiers. | ||
| View original record | AB.46. COPY 4th May . 1922. X.3581 - AMPLOKON SPARK INTENSIFIERS. The Amplokon consists of a small H.T. concentric tubular condenser in parallel with a spark gap of .45 mm, the whole being placed in… | ||
| Scan27 | Trying an auxiliary gap at the sparking plug to overcome leakage and misfiring. | ||
| View original record | AB.46. -2- Contd. As there is generally a slight amount of leakage in practical working, and as the distributor jump gap would not appear to be useful in overcoming it, an auxiliary gap might be tried… | ||
| Scan28 | Updates to the front road springs and radiators for production Goshawks. | ||
| View original record | ORIGINAL To Hy. from H. H1/M17.7.22 & tracts c. to CJ. BJ. Her. c. to Hs. Tp. & Ls. RECEIVED V4219 X4261 X4240 X4264 JUL 20 1922 RE. PRODUCTION GOSHAWKS. In continuation of my memo. of the 15th inst.,… | ||
| Scan29 | Material choices for the steering box, petrol tank cover threading, and the revised layout of the instrument panel. | ||
| View original record | (2) X4264 (12) MATERIAL FOR THE STEERING BOX. I feel quite sure that aluminium would be perfectly satisfactory for this purpose, as evidently the box which was broken was the cause of wrong… | ||
| Scan30 | Sending drawing No. LeC 1612 for a Sylphon Thermostat for Goshawk radiator louvres. | ||
| View original record | To By. from E. c. to C.J. Wor. c. to Hs. Ep. ORIGINAL RECEIVED X4240 E1/M17.7.22. We send you herewith drawing No. LeC 1612 - Sylphon Thermostat for Goshawk radiator louvres. It is Mr. Royce's wish… | ||
| Scan31 | Design and sourcing of oil gauges for the Goshawk instrument board, comparing a Foxborough instrument to a poor quality English-made example. | ||
| View original record | To Hy. & Roy. from R. c. to Wor. Ms. JBJ ORIGINAL GOSHAWK INSTRUMENT BOARD. V4067 With reference to the 2 oil gauges mounted on a dummy board, we like the bridge piece as on the Foxborough instrument,… | ||
| Scan32 | Comments and modifications to the Goshawk generator's armature winding. | ||
| View original record | R.R. 255 A (100 T) (S.F. 846 6-8-19) G. 2460. ORIGINAL To EFC. & Hs. from R. R4/M19.7.22. GOSHAWK GENERATOR (ARMATURE WINDING.) Many thanks for your comments on the Goshawk generator, re armature… | ||
| Scan33 | Steering issues and potential experimental improvements on the Goshawk model. | ||
| View original record | R R 235 A (100 T) (S B 846 6-19) G. 2460. To Hs. from R. ORIGINAL RE. STEERING. X4264 We are extremely anxious to know whether the extra flexibility in the Goshawk steering longitudinal tube reduces… | ||
| Scan34 | Suggestion by Mr. Royce for quieter Goshawk valve rockers using an oil cushion. | ||
| View original record | R.R. 235 A (100 T) (S.F. 345 6-S-19) G. 2400 ORIGINAL E1/M19.7.22. To Hs. from E. c. to Cj. c. to Wor. c. to By. c. to Ep. GOSHAWK VALVE ROCKERS. X4226 The suggestion referred to by Mr. Royce in a… | ||
| Scan35 | Desired qualities and issues with Goshawk dynamo brushes. | ||
| View original record | R.R. 335 A (100 T) (STF 846 6-S-19) G. 2460. To EFC. from R. ORIGINAL RECEIVED JUL 11 1922 R1/M19.7.22. X.4333. I have received your memo. re Le Carbon's ref-erences to Goshawk dynamo brushes. I do… | ||
| Scan36 | Standardisation sheets, with opinions on battery size and starter motor speed for electrical starting equipment. | ||
| View original record | To CJ. from H. c. to Wor. Hs. c. to Hy. RPC. c. to Dy. Da. c. to Er. ORIGINAL RECEIVED 21 JUL 1922 F.C. My dear CJ., X4130 X4132 X4399. RE STANDARDISATION SHEETS. I am sorry for the delay in replying… | ||
| Scan37 | Design considerations for motor connections, starter construction, and armature cores. | ||
| View original record | (2) standard practice, but being anxious that my pigheadedness should not be correct, I suggested that our motor should be connected 2 in series, 2 in parallel, to make it equivalent to the American… | ||
| Scan38 | Cost of a manufacturing process using stampings over solid pole pieces, with a final decision to be made by Mr. Wormald. | ||
| View original record | (3) say 12 to 14 gauge, this process should be less expensive than solid poles. I do not mind however which is used but I cannot believe it would pay to scrap £780 worth of stampings, on account of… | ||
| Scan39 | Cone restrictors and a larger air valve for the Goshawk carburetter. | ||
| View original record | R.R. 235a (100 T) (S.H. 798. 10-12-20) G. 2948 To Hs. from E. ORIGINAL E2/M/19.7.22. X4228 GOSHAWK CARBURETTER. Kindlynote Mr. Royce is anxious to receive the cone restrictors for the carburetter jets… | ||
| Scan40 | Modifications made to the Goshawk clutch mechanism to reduce cost and pedal load. | ||
| View original record | To By. from R. c. to Cdr. Wor. c. to Hs. Bp. FC ORIGINAL RECEIVED JUL 21 1922 R8/119.7.22. GOSHAWK CLUTCH. X4244 Referring to section 8 of R2/M15.7.22., dealing with the above unit, we now send… | ||
| Scan41 | Changes to clutch components and updates for the instruction book. | ||
| View original record | (2) Drawing F50074 shows a clutch pedal pull-off spring. Please note that we no longer require this. There are 2 points which should be brought to the notice of those responsible for the instruction… | ||
| Scan42 | Modifications and armature winding for the Goshawk generator. | ||
| View original record | To EFG. & Hs. from R. X4383 GOSHAWK GENERATOR (ARMATURE WINDING.) Many thanks for your comments on the Goshawk generator, re armature winding. I did not have time to pull it to pieces and look at the… | ||
| Scan43 | Instructions for the Goshawk electrical installation, including wiring numbering and dynamo adjustment. | ||
| View original record | To By. from E. c. to G.J. Wor. c. to Hs. Ep. XH075 GOSHAWK ELECTRICAL INSTALLATION. It will be remembered that on the wiring system between the distribution board and the switch box, every wire is… | ||
| Scan44 | Troubleshooting report on a faulty dynamo for a No. 4 Goshawk engine. | ||
| View original record | R R 235 a (100 T) (S.F. 816 6-19) G 2460 ORIGINAL To EFC. from R. c. to Wor. By. c. to Mr. Brock. X.4383. RE. DYNAMO SENT FOR NO.4.GOSHAWK. X4333 Owing to the absence of the coloured wire scheme, and… | ||
| Scan45 | Note on the assembly and testing of commutator plates, with a warning to avoid repeating past manufacturing errors. | ||
| View original record | R.R. 235 a (100 T) (S.F. 816. 6-8-19) G. 2460 (2) so that the plates shall fly out and settle themselves before the final finish to the commutator is done. Such a test would be useful to find out… | ||
| Scan46 | Responding to complaints and outlining improvements for ignition keys, steering wheels, and handbrake levers. | ||
| View original record | ORIGINAL RECEIVED 1922 To-B.J. from E. c. to Wor. By c. to Hs. Bp Goshawk IGNITION SWITCH & BONNET KEYS. XH081 In reply to your memo. D015/H18.7.22., Mr. Royce remarks as follows in connection with… | ||
| Scan47 | List of additional points regarding the production of Goshawks. | ||
| View original record | To Hy. from R. c. to C.J. P.J. W.H. c. to Hs. Ep. W. Da. RE. PRODUCTION GOSHAWKS. X4219 The following should be added to the points mentioned in my memos. R2/M15.7.22., and R1/M17.7.22:- (15) Terminal… | ||
| Scan48 | List of vehicle improvements including the front dumb iron, battery ignition tower, and a non-rattling brake handle. | ||
| View original record | (2) (33) Front dumb iron with large rivets and single bolt or rivet at front. (34) Improvements to battery ignition tower. (35) Non rattling brake handle. The majority of these items were sent through… | ||
| Scan49 | Requesting the results of experiments on three types of pinion thrust bearings for the Goshawk back axle. | ||
| View original record | R.R. 235a (100 T) (S.H. 798. 10-12-20) G. 2948 To Hs. From Da. ORIGINAL Da2/M21.7.22. GOSHAWK BACK AXLE. Y4256 V3550 We are very desirous of knowing the results of experiments in pinion thrust… | ||
| Scan50 | Proposal from Mr. Royce for a modification to the Goshawk switch box for magneto ignition. | ||
| View original record | R.R. 235 a (100 T) (S.F. 846 6-8-19) G 2460 X.4081. To EFC. from E. ORIGINAL E1/M21.7.22. c. to OJ. c. to WGR. c. to Dy. c. to Hs. c. to Ep. X4081 - GOSHAWK SWITCH BOX - MAGNETO IGNITION. In reply to… | ||
| Scan51 | New drawings for the Goshawk radiator and shutters, cancelling previous versions and detailing resulting modifications. | ||
| View original record | ORIGINAL. To By From E. c. to CJ. Wor c. to Hs. Ep. RECEIVED E1/M22.7.22. GOSHAWK RADIATOR & SHUTTERS. KH240 We send you herewith drawings Nos. LeC 1588 and 1605 giving you particulars of the radiator… | ||
| Scan52 | The steering of the Goshawk model, specifically regarding long stroke spring buffers and the steering pendulum lever. | ||
| View original record | R.R. 235a (100 T) (S.H. 798. 10-12-20) G. 2948 To Hs. from R. c. to CJ. BJ. c. to Da. Hdy ORIGINAL. R2/M22.7.22. X4264 X4268 Regarding the steering of the Goshawk, we are very anxious to know the… | ||
| Scan53 | Request to investigate the cause of harshness and vibration in the front suspension of the 40/50 model. | ||
| View original record | R.R. 235B (100 T) (S.H. 798. 10-12-20) G. 2948 ORIGINAL To Hs. from R. c. to CJ. & BJ. R1/M22.7.22. X 3461 X 634 X2628 The harshness and vibration of the front of the 40/50 may be influenced by the… | ||
| Scan54 | Steering improvement using radius rods and other modifications for the Goshawk vehicle. | ||
| View original record | R R 235 2/1000 T. 18.F. 846.(8/19) G. 2460. ORIGINAL To Hs. from R. c.c. to C.J. Wor- STEERING. X4264 I have definitely come to the conclusion that we can very much improve our steering by the use of… | ||
| Scan55 | Steering gear modifications for the Goshawk and 40/50 models, specifically concerning buffer springs and irreversible steering. | ||
| View original record | R.R. 235 A (100 T) (S.F. 846 6-8-19) G. 2460. (2) buffers, and set up buffer springs. The result of this modification we are anxiously awaiting. We think it is better not to fit irreversi- ble… | ||
| Scan56 | The 40/50 Radius Rod Experiment, noting the required modification to the side steering tube. | ||
| View original record | R.R. 335a (100 T) (S.H 798. 10-12-20) G. 2948 To Hs. from Da. e. to By. [STAMP: ORIGINAL] [STAMP: RECEIVED 26 JUL 1922] Da1/M25.7.22. RE. 40/50 RADIUS ROD EXPERIMENT. X3441 With reference to this… | ||
| Scan57 | Outlining dissatisfaction and required modifications for the Goshawk 11 steering system. | ||
| View original record | R.R. 235 A (100 T) (S.F. 846 6-8-19) G. 2460. ORIGINAL To Hs. from R. c. to CJ. BJ. Wor. c. to De. Ev. Ep. c. to Hy. PH. RE. GOSHAWK 11. STEERING. X4264 I am definitely dissatisfied with this on No.… | ||
| Scan58 | Instructions for the installation of induction pipes, exhaust pipes, and a carburetter on the Goshawk I engine. | ||
| View original record | To-Hy. from-R c. to-GJ. c. to Wor. c. to Hs. RECEIVED. ORIGINAL E1/M25.7.22. X4227 X4228 GOSHAWK 1. INDUCTION PIPES, EXHAUST PIPES, & CARBURETTER. We send you herewith drawings Nos. LeC 1613 & 1614… | ||
| Scan59 | Carburettor and starter modifications for Goshawk II and 40/50 patterns. | ||
| View original record | (2) hot jacket and a special short spray chamber is required without throttle or starter carburetter connection made from the standard Goshawk ll. patterns, but with an alter- ation carried out in the… | ||
| Scan60 | The temporary experimental application of radius rods to the Goshawk steering system. | ||
| View original record | To Ey. From Da. c. to GJ. c. to Mer. c. to Hs. ✓ Hs RECEIVED 31 JUL 1922 ORIGINAL DA/M27.7.22. GOSHAWK STEERING. X4264 X4263 We send you herewith N.schs. 1309 and 1310, shewing the temporary… | ||
| Scan61 | Satisfactory performance of the Goshawk starter motor and comparing it to other models. | ||
| View original record | R.R. 235A (100 T) (S.F. 846 6.5.19) G. 2489. To EFC. from R. c. to OJ. Wor. c. to RS. Ry. c. to De. PN. c. to Ep. ORIGINAL X. 4354 GOSHAWK STARTER MOTOR. Many thanks for your memo. and diagrams of… | ||
| Scan62 | Modifications to the Goshawk throttle and carburetter. | ||
| View original record | R R 235 A (100) T (P & P S) G (8-19) G 2460. To Hs. from R. c. to GC. c. to EU. c. to Hy. Ep. ORIGINAL RECEIVED X4228 X4228 X4229 GOSHAWK THROTTLE. I am extremely pleased to hear that you have… | ||
| Scan63 | Sending drawings LeC 1601 and 1615 regarding a Goshawk's modified radiator, water pipe, fan bracket, and shutters. | ||
| View original record | To By. from E. c. to CJ. Wor. c. to Hs. Sp. ORIGINAL GOSHAWK. X4240 We send you herewith drawings Nos. LeC 1601, and 1615, shewing "Water pipe for modified radiator & fan bracket", and "Radiator… | ||
| Scan64 | Recommendation to use a mixture of benzole and petrol for demonstration purposes, noting its performance benefits and potential for sulphur corrosion. | ||
| View original record | H.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. ORIGINAL To Hs. & PH. from R. c.c. to CJ. & HJ. R3/M28.7.22. RE. FUEL. Y53 / X1555 For demonstration purposes we recommend you to use or try the… | ||
| Scan65 | Comparing the performance and cost of K.L.G. and Lodge ignition plugs in Goshawk and aero engines. | ||
| View original record | To R. from Hs. c. to CJ. c. to Da. c. to SY c. to EF. ORIGINAL. Hs1/LGS.7.22. GOSHAWK - IGNITION PLUGS. X19B So far we have obtained excellent results from the K.L.G. Kl. type plugs. 5-Goshawk-ll ran… | ||
| Scan66 | Delay in completing a generator for the 4-Goshawk-11 and experiments with commutator types. | ||
| View original record | R. from Hs. /ORIGINAL. Hs2/LG3.7.22. DYNAMO FOR 4-Goshawk-11. It will be a week or 10 days before we shall have a completed generator with built up mica commutator. Experiments are being made on the… | ||
| Scan67 | Development status of a dynamo with a built-up mica commutator for the 4-Goshawk-11. | ||
| View original record | R. from Hs. COPY Hs2/LG3.7.22. DYNAMO FOR 4-Goshawk-11. It will be a week or 10 days before we shall have a completed generator with built up mica commutator. Experiments are being made on the bench,… | ||
| Scan68 | Bursting tests conducted on moulded commutators at high speeds and temperatures. | ||
| View original record | To R. & E. from KFC. c. to CJ. & FH. c. to By. & EP. c. to Rg. & Da. c. to Wor ORIGINAL. EPCL/T3.7.2 X.4333 - BURSTING TESTS OF MOULDED COMMUTATORS. We have a series of tests in progress on the… | ||
| Scan69 | Temperature testing of commutators made from various moulded materials. | ||
| View original record | Contd. -2- EFCL/TS.7.22. within a few degrees of the average temperature of the carcase metal. The temperature of the commutator under test will probably be some 10 or 20 degrees higher than this… | ||
| Scan70 | Test log documenting the results of speed and temperature tests on various moulding materials. | ||
| View original record | Contd. -3- EFCL/T3.7.22. | Date of Test. | Moulding material. | Ref: | Carcass temp. reached previous to speed burst. | Test Speed. | Duration of test speed. | Result. | Further remarks. |… | ||
| Scan71 | The results of testing asbestos-filled powders and different shapes of commutator segments. | ||
| View original record | Contd. -4- RPCL/FS.7.32. From the above results it would appear that the asbestos filled No 1a is the most satisfactory of the powders though this is not considered to be the case by Mr. Brock, who… | ||
| Scan72 | The testing of commutator samples, materials used, and plans for further tests. | ||
| View original record | Contd. -5- EFC/TS.7.28. (gun.metal) No. 1 sample sent is the original shape proposed, which however has never been considered satisfactory by the Production Department. It will be understood that in… | ||
| Scan73 | Mr. Royce's request to test the effect of radius rods on the steering of the new 40/50 car. | ||
| View original record | R.R. 235A (100 T) (S H. 798. 10-12-20) G. 3947 To Hs. from D ORIGINAL. Dal/M4. 7.22. RE. NEW 40/50 CAR. X4547 In connection with the new 40/50 design, Mr. Royce is anxious to know the effect of radius… | ||
| Scan74 | Difficulty in achieving sensitive throttle control for the Goshawk engine and a proposed solution. | ||
| View original record | To R. from Hs. c. to CJ. c. to E. c. to Da. c. to BY. COPY. Hs1/LGS.7.22. GOSHAWK - THROTTLE CONTROL. X4228 X4239 The chief difficulty in getting a nice sensitive and gradual control for the Goshawk… | ||
| Scan75 | Difficulty in achieving sensitive control for the Goshawk engine's throttle. | ||
| View original record | To R. from Hs. c. to CJ. c. to E. c. to Da. c. to BY. ORIGINAL. Hsl/LGS. 7. 22. GOSHAWK - THROTTLE CONTROL. X4228 X4239 The chief difficulty in getting a nice sensitive and gradual control for the… | ||
| Scan76 | Design of the Goshawk 11 friction flywheel hub for tool kit V4083. | ||
| View original record | E. from Hs. ORIGINAL Hs5/LG6.7.22. GOSHAWK 11. TOOL KIT. V4083 The details of the friction flywheel hub which is fixed to the crankshaft shows a radius and chamfer. It was not appreciated that the… | ||
| Scan77 | Failure of the Goshawk 11 battery box fixing and proposed solutions based on deflection tests. | ||
| View original record | R. from Hs. c. to CJ. c. to E. c. to Da. c. to BY. ORIGINAL HS Hsl/LG10.7.22. GOSHAWK 11. BATTERY BOX FIXING. X437Y With reference to your memo. RS/HS.7.22 in two cases in which the battery box has… | ||
| Scan78 | The failure of a Goshawk battery box, which split and leaked acid during testing in France. | ||
| View original record | To R. from Hs. c. to CJ. c. to E. c. to Da. c. to BY. ORIGINAL Hs2/LG22.7.22. GOSHAWK BATTERY BOX. X4378 We have had a case of the battery box splitting round the bottom and the bottom portion falling… | ||
| Scan79 | Completion of chassis repairs and requesting decisions on bodywork, upholstery, and paint colour for car 6-EX. | ||
| View original record | R. from Hs. c. to CJ. ORIGINAL. Hs3/LG10.7.22. 6-EX CAR. X3923 The repairs on 6.EX Chassis are now practically complete. The body is now in the hands of the Coachbuilders. We should like to know… | ||
| Scan80 | Supply and fitting of various gauges for the Goshawk 11 instrument board. | ||
| View original record | To R. from Hs. c. to C.J. c. to E. c. to Da. c. to BY. ORIGINAL Hs2/LG10.7.22. INSTRUMENT BOARD - GOSHAWK 11. X4067 V4308 We are sending to you fixed into a teak board, an Oil Gauge which has been… | ||
| Scan81 | Static test report on a Goshawk 11 steering wheel, detailing its failure under torque and load. | ||
| View original record | To R. from Hs. c. to CJ. c. to K. c. to Dn. c. to BY. ORIGINAL Hs5/LG11.7.22. GOSHAWK 11. STEERING WHEELS. X4557 We have tested one of the steering wheels supplied by Messrs. Dover Ltd. and which are… | ||
| Scan82 | Comparative test of a 40/50 HP wheel, concluding that the Lover wheel is amply strong. | ||
| View original record | contd:- -2- We are carrying out a comparative test on a 40/50 H.P. wheel. We consider the tests on the Lover wheel proves that it is amply strong. Hs. | ||
| Scan83 | Modifications to a Goshawk 11 Generator's armature winding. | ||
| View original record | To R. from Hs. c. to CJ. c. to H. c. to Do. c. to BY. ORIGINAL [Strikethrough: X4333] X4383 GOSHAWK 11. GENERATOR. We despatched to you yesterday per passenger train the R-R Generator fitted with the… | ||
| Scan84 | Faults with Goshawk front springs and the results of testing new ones. | ||
| View original record | ORIGINAL. COPY. To R. from Hs. c. to CJ. c. to E. c. to DM. c. to BY. Hs2/LG11.7.22. GOSHAWK 11. FRONT SPRINGS. X4261 Our C.O. are urging for instructions to be issued to order up front springs for… | ||
| Scan85 | Front spring and buffer performance, including issues with clearance and breakages. | ||
| View original record | contd:- -2- reduced from 3" to 2.5" and the clearance between the spring and the buffer has been reduced from 2.6" to 2.1", that these springs do not give us any advantage of any increase in load… | ||
| Scan86 | The performance tests of a Goshawk Dynamo with a narrow control brush. | ||
| View original record | To R & E. from EFC. c. to CJ. & FN. c. to Ey. & EP. c. to Rg. & Da. EFC3/T13.7.22. ORIGINAL X.4383 - GOSHAWK DYNAMO. Though we did not have time before it was necessary to despatch this to R, to make… | ||
| Scan87 | Experiment fitting radius rods to the front axle of a 40/50 or Goshawk model to cure road shocks. | ||
| View original record | R.R. 225A (100 T) (S R. 798. 10-12-20) G. 2947 ORIGINAL To Hs. from R. c. to OJ. [crossed out] c. to Da. R5/M12.7.22. RADIUS RODS TO FRONT AXLE - 40/50 OR GOSHAWK. X344/ I understand that you have in… | ||
| Scan88 | The results of bursting tests for moulded commutators, comparing mouldensite and Elo moulding powders. | ||
| View original record | To R. & E. from EPC. c. to CJ. & FR. c. to Hy. & EP. c. Fg. & Ds. c. to Wor. c. to Wor/Mr. Brock. ORIGINAL X.4333 - BURSTING TESTS OF MOULDED COMMUTATORS Further to our EPC1/T3.7.22 we now report… | ||
| Scan89 | Concluding a series of tests on moulding commutators and proposing further testing on dynamos and an experimental car. | ||
| View original record | Contd. The above series of tests would appear now to be complete in that they have indicated just what conditions are required for the moulding of a successful commutator; We now propose to have a… | ||
| Scan90 | Test report on the performance of various moulding materials under speed and temperature stress. | ||
| View original record | EPC1/T13.7.22. Date of test. | Moulding material. | Ref. letter | Carcass temp. reached previous to speed burst. | Test Speed. | Duration of speed test. (Mins) | Result. | Further remarks. 1.7.22. 1.… | ||
| Scan91 | Test report comparing the performance of moulding materials, Bakelite and Mouldensite, for commutators. | ||
| View original record | -2- Contd. Date of Test | Moulding material | Ref. Lettr. | Carcass Temp. reached Previous to speed burst | Test speed | Duration of speed Test (min) | Result | Further remarks --- | --- | --- | --- |… | ||
| Scan92 | The testing and modification of a Goshawk electrical cutout for a distribution board. | ||
| View original record | E To R. & M. from EFC. c. to CJ. & PN. c. to Ry. & MP. c. to Rg. & Ds. ORIGINAL EFC2/T13.7.22. X.4421 - R.R. GOSHAWK ELECTRICAL CUTOUT ON DISTRIBUTION BOARD. Though we have not previously reported on… | ||
| Scan93 | Proposal for the manufacture and comparative testing of a Goshawk dynamo and starter motor. | ||
| View original record | ORIGINAL To H. from EFC. EFC4/T14.7.22. c. to GJ. c. to E. c. to Ry. X.4383. GOSHAWK DYNAMO. X.4384. GOSHAWK STARTER MOTOR. We propose to have made up a Goshawk dynamo and a starter motor, each… | ||
| Scan94 | The bench tests of the R.R. Goshawk starter motor. | ||
| View original record | ORIGINAL To R. & E. from EFC. c. to CJ. & FMS c. to Hy. & EP. c. to Fg. & Ds. X:4384 - R.R. GOSHAWK STARTER MOTOR. The results of bench tests carried out on the first R.R. Goshawk starter motors were… | ||
| Scan95 | Continued discussion on motor torque requirements for the Goshawk engine, including a comparison with C.A.V. and Lucas motors. | ||
| View original record | Contd. EFC1/T14.7.22. This may be somewhat different when only a magneto is fitted. From this we judged that our assumed torque required to turn the Goshawk engine at 500 lb-inches was, even though it… | ||
| Scan96 | Graph comparing speed-torque and ampere-torque curves for CAV and Lucas starter motors on the Goshawk chassis. | ||
| View original record | SPEED-TORQUE AND AMPERE-TORQUE CURVES OF R.R. CAV AND LUCAS STARTER MOTORS FOR GOSHAWK CHASSIS AXIS LABELS: AMPERES SPEED (R.P.M) TORQUE (LB. INS) CURVE LABELS: AMPERES SPEED R.R. CAV R.R. LUCAS… | ||
| Scan97 | The supply and testing of Le Carbone dynamo brushes for the Goshawk engine. | ||
| View original record | To R. from EFC. c. to CJ. c. to Ry. ORIGINAL EFC2/T17.7.22. X.4333 - BRUSHES FOR GOSHAWK DYNAMO. Messrs. Le Carbone requested us to give particulars of the brush duty for which their grade Z (0)… | ||
| Scan98 | Erratum correcting a previous report on Goshawk Dynamos regarding the status of the end cover. | ||
| View original record | To R. & E. from EFC. c. to CJ. & PN. c. Ey. & EP. c. Eg. & Ds. ORIGINAL EFC12/T17.7.22. ERRATUM. X.4383 - GOSHAWK DYNAMOS - Ref.EFC3/T13.7.22. There is an error in the sentence "This was with no end… | ||
| Scan99 | Overheating of Goshawk dynamos when mounted on a chassis compared to bench test conditions. | ||
| View original record | To R. & E. from EFC. c. CJ. & FN. c. Py. & EP. c. Fg. & Ds. ORIGINAL EFC2/T18.7.22. X.4383 - HEATING OF GOSHAWK DYNAMOS ON CHASSIS There have now been several cases of Lucas-Goshawk and C.A.V-Goshawk… | ||
| Scan100 | Technical memorandum discussing dynamo overheating during testing and proposals for improved cooling and ventilation. | ||
| View original record | Contd. -2- will exceed that on the bench though it is considered likely that it will. It is now arranged, however, that a test be made, as soon as a dynamo is available, of measuring the temperature… | ||
| Scan101 | Experiments on moulded commutators with asbestos fibre and the commercial position of Mouldensite powder. | ||
| View original record | To R. from EPC. c. to W. c. to E. c. to Ey. c. to Sor. c. to Da. c. to TN. E ORIGINAL EFCS/T18.7.32. X.4333 - MOULDED COMMUTATORS. We have your note Rl/M15.7.32. Experiments will be made to find out… | ||
| Scan102 | Modifications to the Goshawk II throttle control's butterfly valve angle for improved operation. | ||
| View original record | To. R. from Hs. C. to H.L. C. to F.H.R. C. to W.A.R. ORIGINAL Hs4/LG19.7.22. GOSHAWK 11. THROTTLE CONTROL. V4228 We tried on the limousine car arranging the controls to the latest LeC. drawing. We… | ||
| Scan103 | Test report comparing a standard throttle with a modified throttle on an engine. | ||
| View original record | Contd:- -2- With levers arranged as shown on the latest LeC. an .080" feeler can be inserted in the gap of the throttle for .250" movement on accelerator pedal. With the angle of the butterfly valve… | ||
| Scan104 | Investigation into movement issues in the Goshawk 11 steering column support and failures of aluminium steering boxes. | ||
| View original record | To R. from Hs. c. to CJ. c. to Rj. c. to Da. c. to BY. ORIGINAL. Hs5/LC24.7.22. GOSHAWK 11, STEERING COLUMN SUPPORT. X4264 We have examined all the Goshawk cars we have running about for signs of… | ||
| Scan105 | Quality and supply issues of brushes for the Goshawk Dynamo. | ||
| View original record | To R. from RFC. c. to GJ. c. to Ly. c. to Wd. X.4333 - BRUSHES FOR GOSHAWK DYNAMO. Thank you for your R1/M19.7.22. You are correct in supposing that the Z(O) is the quality recommended by the… | ||
| Scan106 | Comparing Morganite and Le Carbone dynamo brushes, proposing to fit a set on an experimental car. | ||
| View original record | Contd. -2- EFC4/T24.7.22. You will see that the EC2 has, according to the respective makers, the same specific resistance as the Z Le Carbone. Subject to your approval we would like to fit a set of… | ||
| Scan107 | Comparison table of material properties for carbon products from makers Le Carbone and Morganite. | ||
| View original record | EPC4/T24.7.22. Maker. | Grade. | Specific Resist: in Ohms per in. cube. | Coefficient of Friction. | Normal Current Density amps. per sq. inch. | Contact Drop in Volts at normal current density. Le… | ||
| Scan108 | Request for Goshawk carburetter cone jets, proposing to send a complete new carburetter with the latest modifications. | ||
| View original record | E. from Hs. ORIGINAL. Hs4/LG24.7.22. GOSHAWK CARBURETTER - X.4228. Referring to your request for cone for the carburetter jets. We propose sending to you in about a weeks time, a complete new… | ||
| Scan109 | Visit to the Peto & Radford Battery Works to inspect plate grids for Goshawk batteries. | ||
| View original record | To R. from EFC. c. to CJ. & PN. c. to Ry. & EP. c. to Rg. & Ds. ORIGINAL EFC2/T25.7.22. X.4414P X.3898. PETO & RADFORD BATTERY FOR 40/50 PETO & RADFORD BATTERY FOR GOSHAWK. We have visited the Peto &… | ||
| Scan110 | Comparison of P & R and Exide batteries for potential standardization on 40/50 and Goshawk models. | ||
| View original record | Contd. -2- EFC2/T25.7.22. they rather jealously guard this material and the processes. Should we adopt P & R cells for standard or either on the 40/50,/Goshawk, or both, this will be one of the great… | ||
| Scan111 | Comparison of three experimental batteries (Exide, P & R, and C.A.V.-Willard) for the Goshawk project, with a recommendation to proceed with production of the P & R battery. | ||
| View original record | Contd. -3- EFC2/T25.7.22. With regard to batteries for the Goshawk, of those under serious consideration, viz., (1) The Exide 6XMS. (2) The P & R, of which several sample batteries are being made up… | ||
| Scan112 | Battery options, recommending retaining the 6 XH3 Exide over the C.A.V. Willard. | ||
| View original record | that a slight increase is permissible. We cannot really say which of the two is likely to turn out the better, we would rather see a quantity of each obtained for production purposes in the first… | ||
| Scan113 | Letter from Dunlop Rubber Co. Ltd. concerning issues with security bolts and valve plates on cord tyres. | ||
| View original record | C O P Y. Dunlop Rubber Co.Ltd., Fort Dunlop, Erdington, Birmingham. 26th. July 1922. dictated 25th. Service Manager WH.GC.24.267. Messrs. Rolls-Royce Ltd., Nightingale Rd., Derby. Dear Sirs, For the… | ||
| Scan114 | Letter from Dunlop Rubber Co. Ltd. regarding tyre security bolt tests and recommendations. | ||
| View original record | contd:- -2- which we are prepared to take the fullest responsibility, are contained on pages 23 and 24 of the enclosed booklet "Dunlop Tyres 1921/22", and also on page 15 of the booklet - "The care of… | ||
| Scan115 | Experiments to resolve low-speed steering wobble issues on the Goshawk 11 model. | ||
| View original record | To R. from Hs. c. to CJ. c. to E. c. to Da. c. to BY. ORIGINAL. Hs6/LG26.7.22. GOSHAWK 11. - STEERING. X4264 We have carried out a number of experiments lately in connection with this. We have fitted… | ||
| Scan116 | Spring breakages and seizure issues on Goshawk Bendix Drives for the starter motor. | ||
| View original record | To R. from Hs. c. to CJ. c. to E. c. to Da. c.to EY. ORIGINAL. Hs4/LG26.7.22. GOSHAWK BENDIX DRIVES. X3592 We have had a total of three springs break on the Bendix Drives on the Starter Motor. These… | ||
| Scan117 | Tests conducted on Goshawk induction pipes to investigate petrol distribution and engine performance issues. | ||
| View original record | To R. from Hs. c. to CJ. c. to E. c. to Da. c. to BY. ORIGINAL HSB/LG26. 7. 22. GOSHAWK - INDUCTION PIPES. X4227 X4390 X1487 X4228 We have carried out a number of tests lately on Goshawk 11. induction… | ||
| Scan118 | Carburettor performance tests using various fuels and heating methods on Goshawk and 40/50 HP cars. | ||
| View original record | contd:- -2- We have carried out tests which show that a carburetter will work perfectly on Aviation petrol or Benzol but if inferior petrol with paraffin added is used there will be a definite… | ||
| Scan119 | Testing carburettor hesitation and engine weakness related to the air valve and high-speed jet fuel supply. | ||
| View original record | contd:- -3- connected together by means of a pipe. With this arrangement we proved that the movement of the valve on the instrument board was identical to the one in the carburetter so that it was… | ||
| Scan120 | Technical memorandum comparing the P & R ED.11 battery with the current standard battery for the 40/50 model. | ||
| View original record | To R & E. from EFC. c. CJ. & PM. c. Hy & RP. c. Rg. & Ba. ORIGINAL EPG1/T2717.22. X.3398 - P & R BATTERY FOR 40/50. Further to our EPGM/T25.7.22 and in amplification of remarks contained in our long… | ||
| Scan121 | Experimental batteries from Peto & Radford for the Goshawk, focusing on the casing material. | ||
| View original record | TO R.R. from EFC. C. CE. & PM. C. Ey. & EP. C. Rg. & Ds. C. Wd. ORIGINAL EFC2/T27.7.22. X.4414P - PETO & RADFORD FOR GOSHAWK Further to our EFC2/T25.7.22, we have this morning received a letter from… | ||
| Scan122 | Comparison of distributor dimensions and timing settings for Bosch and Watford magnetos, with an accompanying diagram and table. | ||
| View original record | Contd. BOSCH & WATFORD MAGS -4- EFC/T31.7.22. The distributor dimensions we found to be as in the following sketch and table :- Magneto. Conductor Pitch. A Conductor width. B Brush width. C Overlap at… | ||
| Scan123 | Test report on magneto performance, detailing timing, gaps, and endurance for various models. | ||
| View original record | Contd. -5- EPC1/T21.7.22. armature is naturally held by the magnets) as the datum position, we found that in the advanced position of the lever the makes occurred 57.5°, 74.5° and 81.5° before this… | ||
| Scan124 | Results of various tests conducted on magnetos, noting wear and performance issues. | ||
| View original record | Contd. -6- EFC1/T31.7.22. towards the end of the test on 5.5 mm. gaps. There was rather heavy tracking in the distributor, and the contact breaker lever red fibre block had worn about .005". On the… | ||
| Scan125 | Test report on magneto performance, detailing short tests and utility tests to measure maximum spark gaps on various models. | ||
| View original record | Contd. -7- EPCL/T31.7.22. place on the safety gap of the magneto, also went through successfully on the two Watford magnetos, and was not carried out on the Bosch. (12) A short test of 15 minutes at… | ||
| Scan126 | The comparative high and low speed sparking characteristics of a ZR.6 machine compared to a Bosch unit. | ||
| View original record | Contd. -8- EFCL/T31.7.22. * Neither machine would appear from this to be as good as the Bosch when working on leaky plugs. (14) Range for comparative high speed and low speed Sparking Characteristics.… | ||
| Scan127 | Report page detailing the sparking range and characteristics of various magnetos, including Watford and Bosch models. | ||
| View original record | Contd. -9- EPCL/T31.7.22. 34°, which amount of range is that required for our engine.This applies in the case of most magnetos, in which the best retarded position requires to be as advanced as… | ||
| Scan128 | Test results for maximum spark gap lengths and the effects of shorting gaps on E.O.6c and ELO.6 magnetos. | ||
| View original record | Contd. -10- EFC1/T31.7.22. At all speeds above 1500 R.P.M., with timing lever advanced, shorting any one gap extinguishes the spark immediately following. At central and retard the effect is not so… | ||
| Scan129 | Low-speed sparking characteristics, comparing different magnetos and drive mechanisms. | ||
| View original record | Contd. -11- EFC1/T31.7.22. (16) Low Speed Sparking Characteristics (See p.2 re chain drive on this test). Speeds at which regular sparking occurred on 5.5 mm. gaps with (a) Fully advanced position)… | ||
| Scan130 | Test report on magneto performance, detailing primary/secondary resistances and milli-ampere readings. | ||
| View original record | Contd. -12- EFC1/T31.7.22. EO6c appear to be rather poor. This magnetó seemed to be somewhat affected for the worse by the endurance test. (18) & (19) Primary and Secondary Resistances: ZR.6 .34 ohm… | ||
| Scan131 | Performance comparison graph of DC Volts and Amperes versus RPM for various dynamos. | ||
| View original record | D.C. VOLTS R.P.M AMPERES VOLTS WATFORD EL06 USA Bosch Z R6 Ed 19 STD. WATFORD EO6.(C) | ||