Rolls-Royce Archives
| Identifier | Entry | ||
| Scan0 | Proposed new wheel carrier for the Phantom chassis, including a request to build experimental units. | ||
| View original record | TO. DY. FROM DA. Copy to - CL. HS. ORIGINAL EAC. 6. - NEW PHANTOM WHEEL CARRIER. 48600 Herewith we send N./ scheme 2023, shewing a proposed form of wheel carrier for use with the New Phantom chassis.… | ||
| Scan1 | Modification to engine side guards to prevent mud splashing and requesting tests for reverse airflow. | ||
| View original record | TO B.I. FROM E. Copy to -- HS. SECRET. I N D I A. E2/M2.7.25. ORIGINAL ENGINE SIDE GUARDS. X5290 We send you herewith drawing LeC. 2089., shewing a pocket for shielding the aperture provided for the… | ||
| Scan2 | Secret memo from 'E.' concerning revisions to drawing Lec. 2078 for the Eagle XVI valve gear. | ||
| View original record | TO B.F. (Strikethrough) FROM E. SECRET E3/M2.7.25. Copy to - AH (Strikethrough) HS. EAGLE XV1. VALVE GEAR. X4099 (Handwritten) We send you herewith drawing Lec. 2078., dealing with the above. Certain… | ||
| Scan3 | Design of the upper cylinder head for the Eagle XVI engine, referencing drawing Lec.2094. | ||
| View original record | TO R.M. FROM E. Copy to Col. HS. S E C R E T. EAGLE XV1. UPPER CYLINDER HEAD. 14098 We send you herewith drawing Lec.2094., shewing the above. The cylinder head is designed so that it can be used on… | ||
| Scan4 | Modification to under-guards using soft felt strips to fill space around the crankcase. | ||
| View original record | TO RY. FROM E. Copy to CH HS. ORIGINAL EAC. UNDER-GUARDS. X8290 We send you herewith drawing Lec,2091., shewing a modification embodying a strip of soft felt in the locality where the main underguard… | ||
| Scan5 | Modifications to the 40/50 'V' Series steering gear box to increase irreversibility. | ||
| View original record | TO BY. FROM DA. Copy to - HS. ORIGINAL DA1/M2.7.25. 40/50. - 'V' SERIES - STEERING. X8430 Herewith we send N. scheme 2024., shewing modifications to the steering gear box to increase the… | ||
| Scan6 | Proposal for a test rig to measure the coefficient of friction in steering systems. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM R. Copy to G.I. RM BH OK ORIGINAL STEERING. LS430 T8430 We are very anxious to find the instantaneous value of the co-efficient of friction,… | ||
| Scan7 | Motion and design alternatives for the 'V' series accelerator pedal. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO BM FROM DA. DA1/M3.7.25. Copy to - HS. 'V' SERIES ACCELERATOR PEDAL. X.8470 Referring to the question of the motion of the accelerator pedal… | ||
| Scan8 | Modifications to the EAC plate clutch, proposing the use of fabric with duralumin mountings to reduce inertia. | ||
| View original record | W. R. 235A (100 T) (S. H. 159, 11-8-20) G. 2800 TO HS. FROM R. ORIGINAL R1/M3.7.25. EAC. CLUTCH. 48300 In the matter of the clutch you did not report on the various modifications to the plate clutch,… | ||
| Scan9 | The advantages of using lower-priced tungsten points over platinum points, advocating for replacement rather than repair. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 TO EFC. FROM R. Copy to C.J. H.S. " " ORIGINAL R2/M3.7.25. TUNGSTEN POINTS. X2894 I understand from your latest reports that you consider there is no… | ||
| Scan10 | Drawing for 'X' Series modifications to shutter and starting carburetter control. | ||
| View original record | TO DY. FROM DA. ORIGINAL Copy to - HS. 'X' SERIES - MODIFICATIONS TO SHUTTER AND STARTING CARBURETTER CONTROL. X8280 X8240 We find that by an oversight we have omitted to send you a drawing of the… | ||
| Scan11 | Modified telephone message outlining an urgent plan to modify the Eagle engine as a temporary rival to Curtis engines. | ||
| View original record | Copies to: [strikethrough]WOR. RG. BY.[/strikethrough] HS. [strikethrough] MODIFIED TELEPHONE MESSAGE. [Stamp] ORIGINAL WEST WITTERING. 7. 7. 25. R1/M7.7.25. TO [strikethrough]CJ. &… | ||
| Scan12 | New light type clutch plate for the EAC clutch, its construction, and dismantling considerations. | ||
| View original record | TO: [struck through] FROM AJS. Copy to - [struck through] - HS. ORIGINAL [Stamped] EAC. CLUTCH. V8300 [V8300 is handwritten] We send you herewith a new light type clutch plate for EAC. clutch - LeC.… | ||
| Scan13 | Design modifications for Chassis 7.EX. | ||
| View original record | TO R. FROM DA/EV. ORIGINAL DA/EV1/M9.7.25. Copy to - BJ. HS. re. CHASSIS 7.EX. FOR R. X8770 We saw this chassis last weekend, and are making the following modifications:- (1) LUGGAGE CARRIER - DESIGN… | ||
| Scan14 | Design considerations for an Autovac tank and a wheel carrier. | ||
| View original record | (2) (5) AUTOVAC TANK. The square type tank as fitted, and carrying the klaxon bracket on its face was not considered so elegant in its appearance as the locomotive type used on 'V' series. (6) WHEEL… | ||
| Scan15 | Modification to the gearbox change lever and gate mechanism. | ||
| View original record | TO B.I. (struck through) FROM AJS. Copy to - CS. (struck through) HS. ORIGINAL AJS4/M9.7.25. EAC. 7. GEARBOX. X8310 We send you herewith change lever and gate mechanism for the above chassis, -… | ||
| Scan16 | Requesting spring strength details for a damped spring drive pendulum lever. | ||
| View original record | R.R. 235A (100 T) (S.H. 169, 11-8-20) G. 2800 ORIGINAL TO HS. FROM DA. DA/HDY1/M10.7.25. DAMPED SPRING DRIVE FOR PENDULUM LEVER. X8020 We understand that you would like more friction in the damped… | ||
| Scan17 | Requesting particulars on worm and trunnion efficiencies for steering tests. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G 2800 ORIGINAL TO HS. FROM DA. DA/HDY2/M10.7.25. EAC. STEERING - TESTS FOR WORM & TRUNNION EFFICIENCY. X8430 Will you kindly let us have particulars of these… | ||
| Scan18 | Requesting the detailed measurement and analysis of springs from an American car. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM DA. ORIGINAL DA1/M13.7.25. SPRINGS ON AMERICAN CAR. X3900 X8410 We should very much like you to take one of these springs off the chassis,… | ||
| Scan19 | Disapproved bonnet louvres, requesting drawings for modifications and details on Hispano louvres. | ||
| View original record | ORIGINAL TO DY. FROM DA. Copy to - HS. DA3/M14.7.25. Y8260 X5260 X4214 re. BONNET LOUVRES. The louvres on Mr. Royce's bonnet were not approved of. We should like to see a drawing of these louvres as… | ||
| Scan20 | Modifications to the 'X' Series radiator shutter control, instruments, and dashboard wiring. | ||
| View original record | ORIGINAL TO DY. FROM DA. [Note: 'DY.' is struck through] Copy to - HS. DA4/M14.7.25. Handwritten notes (right margin): X8690 X8250 X8240 'X' SERIES - RADIATOR SHUTTER CONTROL ETC. It is very probable… | ||
| Scan21 | Clarifying a misunderstanding regarding the 'W' series radiator, bonnet, and dash design. | ||
| View original record | TO BY FROM DA. Copy to - HS. ORIGINAL 'W' SERIES RADIATOR, BONNET & DASH. DA2/M15.7.25. Handwritten: X 8250, F81240, X8500 Replying to your BY2/H13725., and referring to the 'W' series radiator, we… | ||
| Scan22 | 'W' series radiator design and a proposal for a new radiator with integral shutters. | ||
| View original record | TO DY. FROM DA. ORIGINAL DA2/M17.7.25. Copy to - HS. 'W' SERIES RADIATOR. (8250) We have discussed the radiator with Mr. Royce this afternoon and he agrees to the use on 'W' series of a radiator with… | ||
| Scan23 | Design preferences for radiators, bonnets, shutters, and louvres. | ||
| View original record | TO ~~BY.~~ FROM R. Copy to - HS. re. RADIATORS, BONNET, SHUTTERS & LOUVRES. Handwritten: X8250 X8240 We are perfectly contented with 'V' series radiator simply raised 1", or we are contented with a… | ||
| Scan24 | Instructions for manufacturing a worm and nut for the 'V' series steering system. | ||
| View original record | TO BY FROM DA. Copy to - HS. ORIGINAL +8430 DA1/M17.7.25. 'V' SERIES STEERING. 8430 In accordance with Mr. Royce's instructions, will you please make a worm and nut for the above steering having a .8… | ||
| Scan25 | Experimental fitting of a Marles steering gear to a New Phantom chassis. | ||
| View original record | TO BY. FROM DA. Copy to - HS. ORIGINAL DA2/M18.7.25. MARLES STEERING GEAR. + 4094 Mr. Royce has agreed to fitting a Marles steering experimentally to a New Phantom chassis, and we have written to the… | ||
| Scan26 | N.scheme 2033, which details a large diameter worm for an EAC steering trial. | ||
| View original record | TO BY. FROM DA. DA4/M18.7.25. Copy to - OJ HS. EAC. STEERING. 48430 We send herewith N.scheme 2033., shewing the large dia. worm with a .625 lead which Mr. Royce wishes preparing for trial as quickly… | ||
| Scan27 | Fitting of a large diameter irreversible worm and damped pendulum lever to Mr. Royce's car. | ||
| View original record | TO HS. FROM DA. Copy to BY. DA2/M20.7.25. X8250 X205 Mr. Royce is very anxious that his car should have the large dia. irreversible worm in combination with the damped pendulum lever. EV. suggests… | ||
| Scan28 | Instructions and positioning for the 'W' series vacuum tank and radiator. | ||
| View original record | TO BY. (struck through) FROM DA. Copy to - HS. ORIGINAL (stamp) DA3/M20. 7. 25. 'W' SERIES VACUUM TANK, RADIATOR, ETC. X8250 (struck through) X8810 Referring to HS3/LG17725., we believe that we have… | ||
| Scan29 | Complaint about brake cover contamination and proposing an experimental solution. | ||
| View original record | TO BY. FROM DA. Copy to - GJ. - HS. ORIGINAL DA1/M21.7.25. PATIALA. X3458 X8360 With reference to BY9/H15725., and Mr. Sidgreaves letter on the complaint from Patiala of the mud and fine stones… | ||
| Scan30 | Oil leak from the front spring's rear anchorage on Mr. Royce's car and proposing a new design for testing. | ||
| View original record | TO BY. FROM DA. C. to - CJ. HS: ORIGINAL DA3/M21. 7. 25. 'V' SERIES - REAR ANCHORAGE OF /8410 FRONT SPRINGS. In lubricating Mr. Royce's car down here the oil from the gun appeared to ooze outside the… | ||
| Scan31 | Design and material choice for a cover for the 40/50 rear brakes. | ||
| View original record | TO BY. FROM DA. C. to - OJ. HS. DA2/M22. 7. 25. +8360 /x245k 40/50 REAR BRAKES. Replying to your BY8/H15725., as in the case of the 20HP. chassis, Mr. Royce would like to try a simple form of cover on… | ||
| Scan32 | Telegram regarding car LS=5/=LG 22725, instructing not to send it as another is available. | ||
| View original record | Hives Roycar Derby. Regarding LS=5/=LG 22725 do not send car from Derby as 46 p.k. available here. Elliott. | ||
| Scan33 | Test run and performance review of a modified India chassis. | ||
| View original record | ORIGINAL SECRET. TO CJ. FROM R. R5/M24.7.25. C. to HJ. HS. " EY. " PN. INDIA CHASSIS. X5770 X5310 I ran the slightly modified India 60 miles last evening. This had the semi-balloon tyres, and lighter… | ||
| Scan34 | Requesting further efficiency readings for steering nuts, including reversibility and data on Goshawk and other modern types. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM DA. DA5/M24.7.25. STEERING EFFICIENCIES. X5440 X8430 X52430 We presume that the nut and screw efficiency shewn on page 2. of HS4/LG21725. is… | ||
| Scan35 | Requesting further information comparing an American spring to a Woodhead spring, considering manufacturing accuracy and heat treatment. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM DA. DA1/M24.7.25. AMERICAN SPRING. Handwritten: V3900 K2628 The information you give in your HS1/LG21725. is what we were hoping to get, but… | ||
| Scan36 | Modifications and criticisms of control ball joints to prevent loosening. | ||
| View original record | TO D.M. FROM E. (D.M. is struck through) Copy to - CL HS. (CL is struck through) ORIGINAL E1/M8. 8. 25. [Handwritten]: +8240 +8310 +8320 CONTROL BALL JOINTS. Regarding the trouble that has been… | ||
| Scan37 | Investigations into vacuum feed issues affecting petrol economy on 40/50 and 20HP models. | ||
| View original record | R.R. 235A (160 T) (S.H. 159, 11-3-20) G. 2800 TO HS. FROM R. Copy to C.I. EW. [Text struck through] VACUUM FEED ON 40/50 AND 20HP. R2/M10. 8. 25. x8510 [Text struck through] x5570 [Text struck… | ||
| Scan38 | Drawing LeC. 2121, concerning modifications for the battery ignition tower and distributor housing. | ||
| View original record | TO Df. FROM E. Copy to - CS. HS. LPO. [Text 'Df.', 'CS.' and 'LPO.' are struck through] ORIGINAL [Faded stamp] E2/M10.8.25. [Handwritten numbers] X8691 / X8690 X8680 EAC. BATTERY IGNITION. We send you… | ||
| Scan39 | Scheme 2037 for a damped pendulum lever cover and its potential modifications. | ||
| View original record | TO DY. FROM DA. Copy to - ads. HS. DA1/M12.8.25. ORIGINAL X 8430 X205 DAMPED PENDULUM LEVER. We send herewith N. scheme 2037. shewing the cover attached to bonnet strip and valance for the damped… | ||
| Scan40 | Sending of a drawing for the Eagle XVI crankshaft bearings and details. | ||
| View original record | TO RY FROM E. Copy to - CI " RG " HS. ORIGINAL E2/M17.8.25. X4116 EAGLE XV1. - CRANKSHAFT BEARINGS & DETAILS. We send you herewith drawing Lec.P 2124., dealing with the above. E. | ||
| Scan41 | Proposing a modification to the New Phantom vacuum feed tank, with a diagram, to resolve sooted spark plugs by introducing an air-only autovac mechanism. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 TO HS. FROM E. Copy to - CJ. (handwritten, struck through) re. NEW PHANTOM VACUUM FEED TANK. Referring to report HS/AJL/LG13825., we should suggest that… | ||
| Scan42 | Drawing LeC. 2123 for the EAGLE XV1 engine, requesting a wooden model of the combustion space and a duralumin cylinder stud. | ||
| View original record | TO BY. FROM E. Copy to - RB. " " HS. ORIGINAL E1/M18.8.25. EAGLE XV1. X4114 X4098 We send you herewith drawing LeC. 2123., shewing some cyl. details and particulars of the head joint washers. We shall… | ||
| Scan43 | Use of a horizontal hydraulic shock absorber to resolve high-speed steering wobbles. | ||
| View original record | R.R. 235A (100T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM DA. ORIGINAL HIGHSPEED STEERING WOBBLES. [Handwritten: X457, X1152] We believe you are trying, or have tried, a shock absorber working… | ||
| Scan44 | Carburetter's low speed needle taper and altered filter mesh, with a request for a replacement part. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM R. Copy to GJ. EP. R3/M20.8.25. X8050 X3701 X8190 I am still impressed that the taper of the low speed needle in the New Phantom carburetter… | ||
| Scan45 | Reduction of servo power on the 20.HP model by altering the cam angle. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM DA. DA1/M20.8.25. [STAMP: RECEIVED AUG 11 1925 ASST. WKS. MGR. H.S.] [STAMP: ORIGINAL] SERVO ON 20.HP. X5370 HS3/LG18825., Referring to your… | ||
| Scan46 | 9.G.111 concerning a stiffened tube and its numbers compared to a previous report. | ||
| View original record | TO D.I. (struck through) FROM DA. ORIGINAL DA2/M20.8.25. Copy to - HS. REPORT ON 9.G.111. 5840 (handwritten and struck through) √5450 (handwritten) We presume that this is not the latest stiffened… | ||
| Scan47 | Telegram received by telephone regarding Mr. Royce's interest in the effect of radiator rods on wobble. | ||
| View original record | RR 144A (50BKS.) (SK 371 23-5-23) MP 272631 ORIGINAL ROLLS-ROYCE LTD. TELEGRAM RECEIVED BY TELEPHONE Time Received: 3.55 By: E.J Date: 24-8-25 from: West Wittering 2.0 To: Royce Derby Reference: X457… | ||
| Scan48 | Fault and proposed design improvements for an EAC carburetter filter. | ||
| View original record | TO ~~FX.~~ FROM E. Copy to ~~CS.~~ HS. E1/M24. 8. 25. X.8080 X.8190 EAC. CARBURETTER FILTER. We had occasion to dismantle the filter on the EAC. car here and found the top nut jammed on the stud, the… | ||
| Scan49 | Alterations to the 20HP slipper flywheel to prevent the breakage of spring bolts. | ||
| View original record | TO | ||
| Scan50 | Water ingress issues with a new locking device for the Goshawk front axle and Dunlop wheels. | ||
| View original record | R.R. 285A (100 T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM DA. ORIGINAL DA2/M24.8.25. GOSHAWK FRONT AXLE - DUNLOP WHEELS WITH NEW LOCKING DEVICE. X5420 X5610 The report that more water gets in through… | ||
| Scan51 | Modifications to the New Phantom magneto and an issue with flick start ignition. | ||
| View original record | W.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM R. Copy to CI. Dr. ORIGINAL R8/M25.8.25. x 8790 x4181d NEW PHANTOM MAGNETO. It will be remembered that it was suggested here that the friction… | ||
| Scan52 | Broken bolt on a 20 HP Slipper Flywheel following a failure in France, detailing the probable cause and the proposed solution. | ||
| View original record | TO HS. FROM R. Copy to GJ. PY. 20.HP. SLIPPER FLYWHEEL. X.5300 (FAILURE IN FRANCE.) Regarding the broken bolt on the 20.HP., this was probably caused through difference of friction, or seizing between… | ||
| Scan53 | Testing a modified steering system for the 20 HP model to prevent wobbles and road shocks. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO HS. FROM R. Copy to CJ. " RV. " PN. " DA. re. STEERING - 20.HP. X5430 This should be tested with larger and slower speed worm, and with… | ||
| Scan54 | Modifications to New Phantom connecting rods and a camshaft bearing oil leak. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 TO HS. FROM R. ORIGINAL Copy to GJ. BY. NEW PHANTOM CON. RODS. X8030 We are hoping and expecting to have news on the various modifications to the con.… | ||
| Scan55 | Testing an axle with vertical steering pivots to resolve steering wobbles. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO HS. FROM R. R5/M25.8.25. Copy to CJ. DY. FN. STEERING WOBBLES. W57 78430 In the conversation of the telephone yesterday I asked you to test as… | ||
| Scan56 | The performance of the Goshawk III gearbox and clutch. | ||
| View original record | TO HS. FROM R. OJ. DY. GOSHAWK III. GEARBOX. X5310 With the exception of servo jaggers this gearbox and clutch has functioned extremely well, the handling of the gears, and especially the sliding… | ||
| Scan57 | Change to fine mesh filters for 20HP & 40HP models due to choked jets. | ||
| View original record | TO HS. FROM R. Copy to ~~CJ.~~ BY. H. re. 20HP. & 40HP. FILTERS IN BACK TANK AND CARBURETTERS. X8080 ~~X5080~~ X8190 You will remember that we are expecting both these to be changed to fine mesh. We… | ||
| Scan58 | Issues with coarse carburetter filters, proposing finer duplex filters and alternative jet designs to prevent choked jets. | ||
| View original record | TO BY. FROM R. Copy to - SS. HS. H. ORIGINAL R2/M26.8.25. re. FILTERS. +8080 X.8190 Regarding filters, I was pleased to receive a note from BY. shewing that the coarse filters were done to… | ||
| Scan59 | Layout, geometry, and modifications for a hydraulic damper on a front axle. | ||
| View original record | TO EY. [Struck through] FROM DA. Copy to - HS. [Struck through] ORIGINAL [Stamp] DA3/M26.8.25. HYDRAULIC DAMPER ON FRONT AXLE. [Handwritten notes:] X457 +8520 X/8420 [Struck through] +8520 We send… | ||
| Scan60 | Fix for an oil leak at the rear end of EAC and 20HP engines. | ||
| View original record | B1 TO DY. (struck through) FROM E. Copy to - CJ (struck through) HS. ORIGINAL E1/M27.8.25. EAC. AND 20HP. ENGINES - X8000 (handwritten, crossed out) OIL LEAK - REAR END. X8780 X5980 (handwritten)… | ||
| Scan61 | Drawing for Eagle XVI balance weights, noting the dimensions are provisional. | ||
| View original record | TO BY FROM E. Copy to - CL HS. EAGLE XVI. BALANCE WEIGHTS. H4047 We send you herewith drawing Lec. 2132. shewing the above. These balance weights are not necessarily of the correct dimensions, as we… | ||
| Scan62 | On the disapproval of a scheme for balance weights on wire wheels, noting Mr. Royce's preference. | ||
| View original record | ORIGINAL. R TO BY, FROM DA. DA3/M29.8.25. Copy to - OJ. HS. BALANCE WEIGHTS ON WIRE WHEELS. Y401 / X457 Mr. Royce did not approve of the scheme for holding on balance weights, of which the pieces were… | ||
| Scan63 | Drawing No. LeC. 2131 and an alteration to the Goshawk slipper flywheel dowels. | ||
| View original record | ORIGINAL FROM E. Copy to HS. re. EAC. SLIPPER FLYWHEEL. 48300 [crossed out] 45300 We send herewith drawing No. LeC. 2131., shewing the above fitted with dowels as per our alteration to Goshawk. It is… | ||
| Scan64 | The four-wheel brake cam and servo performance on the Goshawk III. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO HS. FROM R. Copy to ------ GOSHAWK 111. IN FRANCE. X5840 X5940 X5370 It would appear that the cam for the four wheel brakes on this car is… | ||
| Scan65 | Carburetter and induction modifications for the 20.HP car to increase power. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO HS. FROM R. Copy to C.L. D.T. 20.HP. CAR. X5080 V5770 X5070 We have some modifications instructed for the carburetter which we hope will give… | ||
| Scan66 | Using 160 mesh monel metal gauze in petrol filters and potential issues with the vacuum feed on 20HP and EAC models. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM R. Copy to - SH. EY. H. (all struck through) R2/M1. 9. 25. re. PETROL FILTERS. X3701 X8190 X8080 The monel metal gauze of 160 mesh is probably… | ||
| Scan67 | Test results of a boosted Eagle engine and its comparison with the Curtiss and new Falcon X engines. | ||
| View original record | ORIGINAL To C.C. ) FROM R. R.C. ) Copy to - [redacted] " - [redacted] " HS. R9/M1.9.25. re. BOOSTED EAGLE. 4114 (3804 HS. has sent me the result of tests in conjunction with the boosted output of the… | ||
| Scan68 | Requesting an investigation into the best practices for fitting inserted valve seats for air-cooled engines. | ||
| View original record | TO BY. FROM R. R10/M1.9.25. Copy to - RG. HS. ORIGINAL re. INSERTED VALVE SEATS. X3616 I learnt from Capt. Forsyth that the casting of these valve seats in position had not proved to be the best… | ||
| Scan69 | Steering component specifications, including worm lead and pendulum lever, and the impact on self-centring. | ||
| View original record | ORIGINAL TO DY. (struck through) FROM DA. Copy to - HS. re. STEERING. (handwritten: F8430) We understand that a new bracket on the dashboard will enable you to use the large worm with short lead. With… | ||
| Scan70 | Telegram inquiring about 'gyrostatic wobble' in relation to wheel speed and suggesting a meeting to discuss the issue. | ||
| View original record | POST OFFICE TELEGRAPHS (12806 & 15930) 10/24 Harrow E.275 & 1730 RECEIVED Box: RECEIVED: 12.16 M. From: h By: GWS SENT Box: No. of Telegram: 66 Office Stamp: DERBY 4 SEP 25 Main Body: Prefix: S. Time… | ||
| Scan71 | Post Office Telegraph form with a short handwritten message arranging a meeting time. | ||
| View original record | Received At: 12-19. From: Harrow. By: CW. Prefix: J. Time handed in: 11.22. Office of Origin and Service Instructions: Chichester T. Message: @ Clarke Roycar about two oclock Royce. Office Stamp:… | ||
| Scan72 | Proposal to modify the exhaust heating system on the New Phantom to improve circulation by rearranging pipes, thereby eliminating a valve. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2890 ORIGINAL TO HS. FROM R. Copy to G.L. [text struck through] RECEIVED [stamped] 48230 [handwritten, struck through] 48080 [handwritten] NEW PHANTOM -… | ||
| Scan73 | Optimal pivot distance for a new front axle design to improve steering and reduce weight. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2600 ORIGINAL TO HS. FROM DA. DA1/M4.9.25. FRONT AXLE. X5420 Y4214 A matter of great importance to us in the design of the new front axle of reduced weight… | ||
| Scan74 | Arranging for the testing of a set of Houdaille hydraulic shock absorbers. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO HS. FROM DA. DA2/M5.9.25. HYDRAULIC SHOCK DAMPERS. X1152 X8520 Mr. Hardy has arranged for the Houdaille people to send you a complete set of… | ||
| Scan75 | Request for samples of suitable hydraulic shock dampers, such as the 'Derihon' and 'Wilson', for evaluation by Mr. Royce. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 TO HS. FROM DA. DA1/M5.9.25. HYDRAULIC SHOCK DAMPERS. 48520 Fourth As you know we are going into the question of a suitable hydraulic damper as far as we… | ||
| Scan76 | Modifications for the New Phantom petrol tank. | ||
| View original record | ORIGINAL TO BY. FROM DA. DA3/M5.9.25. Copy to - CS. HS. NEW PHANTOM PETROL TANK. +8460 / X8190 We send herewith N. sch. 2051. shewing some modifications to the petrol tank which have been made as a… | ||
| Scan77 | Use of larger .312 bolts for the 20HP starting handle support following reports of slackening. | ||
| View original record | TO HS. FROM DA. ORIGINAL DAL/M7.9.25. 20HP. STARTING HANDLE SUPPORT. X5270 Referring to the reports from France of bolts slackening on this piece, we presume you are trying .312 bolts instead of .250,… | ||
| Scan78 | Internal memorandum discussing the design, patent implications, and experimental nature of a new hydraulic shock damper for the Phantom model. | ||
| View original record | TO BY. FROM DA. Copy to - HS. ORIGINAL NEW PHANTOM HYDRAULIC SHOCK DAMPER. Herewith we send N. scheme 2052. shewing the hydraulic damper for the front axle. This shock absorber is double acting, but… | ||
| Scan79 | Two alternative designs for an exhaust cutout intended for the Indian market. | ||
| View original record | FROM DA. Copy to - CJ. HS. ORIGINAL INDIA - EXHAUST CUTOUT. X5490 We send herewith N.sch. 2031. "Cutout operation", and N.sch. 2032. "Arrangement of cutout and on silencer". On N. sch. 2031. there are… | ||
| Scan80 | Investigating high-speed wheel wobbles and proposals for experiments to understand and eliminate the phenomenon. | ||
| View original record | ORIGINAL R.R. 285A (100 T) (S.H. 159. 11-8-20) G. 2800 TO HS. FROM R. C. to GL. WOR. " DY. DA. " EFC.CWB STEERING. X8430 t401 R1/M14.9.25. Naturally you will still be pressing forward the tests to… | ||
| Scan81 | Mitigating wheel wobble and tramping speed through design and testing. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 (2) I am nearly certain that whatever we do in the way of proportioning the weights and positions of the relative parts of the wheels and axles, we shall… | ||
| Scan82 | Telegram from Royce regarding weight reduction for axle, brake, hub, and wheel components. | ||
| View original record | POST OFFICE TELEGRAPHS. (17039) Wt. 24118/584 15,000m 4/25 Harrow E.1550 ORIGINAL 0211 Office Stamp: 14 SEP 25 Time handed in: 1 19 M. Office of Origin and Service Instructions: Chichester T. KSW30 34… | ||
| Scan83 | Modifications for the New Phantom radiator support, suggesting case-hardening or whitemetalling. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-8-20) G. 2800 ORIGINAL TO HS. FROM R. R1/M15.9.25. Copy to ~~BY~~ NEW PHANTOM - RADIATOR SUPPORT. X 8250 We think the best thing to do with this would be to… | ||
| Scan84 | Internal memorandum from R. to H.S. requesting modifications to the Goshawk I chassis, including fitting smaller wheels. | ||
| View original record | ORIGINAL R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM R. R5/M15.9.25 GOSHAWK 1. ✓X4565 X.3481 X4263 With reference to Goshawk 1. I want this little chassis fitting up rather dif-… | ||
| Scan85 | Proposing the inclusion of exhaust analysis in engine testing to check distribution. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO HS. FROM R. R2/M15.9.25. EXHAUST ANALYSIS. X.8230 X.4621 Regarding the testing of car and aero engines, we think it would be a good thing if… | ||
| Scan86 | Alternative metals for H.T. distributors and comparing insulation to Bosch components. | ||
| View original record | R.R. 235A (100 T) (S.H. 139. 11-8-20) G. 2800 ORIGINAL TO EFC. FROM R. R3/M15.9.25. x800 x4357 y8690 x4275 In our H.T. distributors I believe we use nickel. Would any other metal be more suit- able,… | ||
| Scan87 | Instructions from Mr. Royce on modifying a badly worn Phantom radiator pivot and sphere. | ||
| View original record | ORIGINAL TO P.A. FROM E. Copy to - G.S. HS. WW. E1/M16.9.25. PHANTOM RADIATOR PIVOT. +8250 Referring to the badly worn radiator pivot and sphere which was sent to WW. with report HS2/LG11925., Mr.… | ||
| Scan88 | Querying the comparative weights of front axle hubs for the New Phantom model. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO HS. FROM DA. DA1/M19.9.25. [Handwritten numbers crossed out: +3580, +8420, +8840, +421] NEW PHANTOM. Referring to the list of comparative… | ||
| Scan89 | Requesting proposals for improving the control of the front axle on the Goshawk I car. | ||
| View original record | TO HS. FROM DA. ORIGINAL DA2/M21.9.25 GOSHAWK 1. FRONT AXLE. 4263 At the last moment we forgot to go into your proposals for improving the control of the front axle on this car. Could you send me down… | ||
| Scan90 | Letter from 'R' to Mr. Rowledge discussing design improvements for the 'Eagle' XX aero engine. | ||
| View original record | ORIGINAL Copy of Letter received by Rg. on Wednesday afternoon, 24.9.24 Rg. from R. C. to Hd. C. to Hy. C. to E. C. to Hs. WISBECH. 22.9.24 My dear Mr. Rowledge, Re "Eagle" XX - I had a fear that we… | ||
| Scan91 | Developments on Eagle IX carburettors, piston trouble, Goshawk tyres, and E.A.C.E. engine performance. | ||
| View original record | - 2 - I expect to be home by Wednesday night, after spending Wednesday in London, where I shall be pleased to see you if you are in Town. Possibly you may have sent the design of stays for "Eagle" IX… | ||
| Scan92 | Specifications for speed models, specifically that they should be short chassis, and instructions for wing improvements. | ||
| View original record | TO HS. FROM DA. ORIGINAL DA7/M23.9.25. SPEED MODELS. X8390 X8770 X8830 Speed models should always be short chassis. It is understood that there is a sports body suitable for a short chassis. We have… | ||
| Scan93 | List of six agreed-upon modifications for a 'Next 10,000 Miles Phantom' car. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO HS. FROM DA. Copy to CJ. " DY. " EH. " HN. DA2/M23.9.25. NEXT 10,000 MILES PHANTOM. X.8940a X.8770 Referring to your visit yesterday, it was… | ||
| Scan94 | The setup and future testing of various shock dampers. | ||
| View original record | ORIGINAL R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM DA. DA3/M23.9.25. Copy to CJ. " DY. " EP. " TN. SHOCK DAMPERS. X8520 / H4046 X1152 / 4235 Referring to your visit to WW. yesterday,… | ||
| Scan95 | Request to change the bonnet handles on chassis 7-EX from sheet metal to cast nickel silver. | ||
| View original record | TO HS. FROM DA. Copy to BX. BONNET HANDLES ON 7-EX. X8260 The sheet metal box type handles on this chassis were not approved of. Some time ago we asked that those shewn on N. scheme 1453. should be… | ||
| Scan96 | Requesting the Phantom rear axle track be widened to 57 inches to match the front track. | ||
| View original record | TO RY. FROM DA. ORIGINAL DA5/M23.9.25. Copy „ to - HS. PHANTOM REAR AXLE. X.8350 It is understood that the rear track has not been put out to 57" to equal the front track, even on 'W' series. We… | ||
| Scan97 | Design improvements for the 20HP steering system to reduce low-speed wobble. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO HS. FROM DA. DA6/M23.9.25. Copy to CJ " " RY 20HP. STEERING. X5430/X457 X5450 It is desired as soon as possible to get on the big worm to this… | ||
| Scan98 | Letter to coachbuilders Barker & Co. regarding modifications to a 20HP chassis, including windscreen, steering, and wheel arches. | ||
| View original record | COPY FOR HS. ORIGINAL "CAMACHA" WEST WITTERING. CHICHESTER. 25th. Sep. 1925. Messrs Barker & Co. (Coachbuilders) Ltd. Olaf Street, Latimer Road. LONDON. W. 11. FOR ATTENTION BY MAJOR C. F. DINGWALL.… | ||
| Scan99 | Spring setup in the cross steering tube to fix high-speed wobbles in the Phantom model. | ||
| View original record | ORIGINAL TO DY. [struck through] FROM DA. Copy to - CJ [struck through] HS. DA1/M25.9.25. PHANTOM STEERING. [Handwritten: 48430 48425] Herewith we send N. sch. 2054. shewing the set up spring in the… | ||
| Scan100 | List of proposed modifications for the Phantom front axle. | ||
| View original record | TO ~~PY~~. FROM DA. Copy to ~~CC~~. HS. ORIGINAL DA2/M26. 9. 25. PHANTOM FRONT AXLE. ~~48420~~ Herewith we send N.sch: 2055. shewing the first modifications to front axle parts which Mr. Royce would… | ||
| Scan101 | Modifications to a Phantom car being sent to France. | ||
| View original record | ORIGINAL TO CJ. FROM R. Copy to - BJ. HS. BY. RE. PHANTOM CAR GOING TO FRANCE. Handwritten: x8430 (crossed out) x8940a x8980 This car should be kept back for the whole of the modifications we intend… | ||
| Scan102 | Issues and potential solutions for autovac tanks, including suggestions from Mr. Royce. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 ORIGINAL TO HS. FROM DA/EV. C.c. to CJ. BJ. H. DA/EV1/M28.9.25. X3579 X3593 f4214 re. AUTOVAC TANKS. We have examined an autovac and notice that each time… | ||
| Scan103 | Aero engine programme, including progress on the Falcon X and Eagle XVI engines. | ||
| View original record | ORIGINAL FROM R. to HS. re. AERO ENGINE PROGRAMME, AND GENERAL. R1/M28. 9. 25. Handwritten: X1906 X4114 Y3804 (1) Col. Fell was here for the weekend and saw the work going on. Some matters were… | ||
| Scan104 | Missing parts and a critical oversight in the assembly of a Silver Rogue engine. | ||
| View original record | (2) WW. work at the missing parts. Many parts, such as the crankshaft, con. rods, pistons, valves, cylinders, etc, could be ordered. (10) You will remember that 9 weeks produced the Silver Rogue… | ||
| Scan105 | List of twelve specified modifications for the next Phantom model for France. | ||
| View original record | ORIGINAL [redacted] FROM R. R2/M29. 9. 25. C. to - [redacted] HS. [redacted] NEXT PHANTOM FOR FRANCE. +8940a +8770 +82420 This must wait for the improvements lately specified. They are as follow:- (1)… | ||
| Scan106 | Design and requirements for petrol filters on Phantom and Goshawk models. | ||
| View original record | R.R. 235A (100 T) (S.H. 159. 11-3-20) G. 2800 TO HS. FROM R. [Struck through text: Captain Gill, B.H.H.] [Struck through text: BY. DA.] ORIGINAL. R3/M29.9.25. X3701 X 8190 PHANTOM AND GOSHAWK PETROL… | ||
| Scan107 | Page 2 of a document describing a duplex outgoing filter system with a 2-gallon reserve. | ||
| View original record | (2) and water, and very large duplex outgoing filters, which are arranged for a 2 gallon reserve, and can in a moment be changed over if one of the 30 sq. in. area filters are blocked. R. | ||
| Scan108 | Decision to abandon the separate compartment scheme for the rear petrol tank in favour of two different length suction pipes. | ||
| View original record | TO C.C. FROM R. C. to P.J. C.W.H. H.S. E.W.H. [Struck through] ORIGINAL [Stamped] REAR TANK & PETROL SUPPLY. 48460 / X8460 [Handwritten and struck through] It is concluded that the separate… | ||
| Scan109 | Design and manufacturing process for bonnet louvres, including a cross-sectional diagram. | ||
| View original record | ORIGINAL. TO E.A. FROM R. Copy to - C.I. " R.S. " H.S. " B.M. LOUVRES. X8260 X5260 If we use louvres on the bonnet we must make them from the bonnet itself, without undue labour. To do this you must… | ||
| Scan110 | Letter detailing the dispatch of original design schemes and drawings for the Falcon X engine. | ||
| View original record | ORIGINAL TO RG FROM E. E2/M29. 9. 25. Copy to - Col. " " PY " " HS. FALCON X. +3804 In reply to your telegram of even date, we are sending you herewith the originals of all the schemes we have… | ||
| Scan111 | Performance issues and corrective actions for a 78-Goshawk III car. | ||
| View original record | R.R. 235A (100 T) (S.H. 159, 11-8-20) G. 2800 TO HS. FROM R. ORIGINAL R2/M:30.9.25. 9 78-GOSHAWK 111. X5770 X5840 This car was never quite right, because it always behaved the same. It has been… | ||
| Scan112 | Letter to the Air Ministry detailing the technical requirements for a double spark 8-cylinder magneto for the Eagle XVI engine. | ||
| View original record | COPIES TO:- [REDACTED] [REDACTED] [REDACTED] [REDACTED] [REDACTED] "ELMSTEAD", WEST WITTERING. CHICHESTER. 30th. Sept. 1925. Col. L. F. R. Fell. Room 609. AIR MINISTRY. Adastral House Kingsway. W. C.… | ||
| Scan113 | Letter from F. H. Royce discussing potential modifications and reliability issues of magnetos for Eagle XVI, Packard, and Falcon X engines. | ||
| View original record | (2) a ring on the rotor. This brush could possibly be of the jump spark type. Most of this construction is well known, and so far as we can see there is no reason why it cannot be applied with but… | ||