Rolls-Royce Archives
| Identifier | Entry | ||
| 01-page01 | Graph comparing the Brake Mean Effective Pressure and performance curves of various engines from Cadillac, La Salle, Bentley, and Rolls-Royce. | ||
| View original record | BRAKE MEAN EFFECTIVE PRESSURE CURVES CADILLAC & ROLLS-ROYCE PRODUCTS S.M.C. CORRECTION TO 100°F AXIS LABELS: Top: HP, LBS/SQ. IN., B.M.E.P., DEGREES Left: R.P.M. (÷100) Bottom: PER CENT (10), LB/HP.… | ||
| 01-page02 | Secret memorandum detailing six different features of the Wraith Clutch compared to the Spectre clutch. | ||
| View original record | GRY. Does this avoid all Bentley faults? Rm, No SECRET. X4709 To BY. from HDY. HDY.1/HP.4.1.36. c. WOF. E. H. [redacted] 612 Wraith Clutch. W. Sch.4319 herewith shows the above:- There are several… | ||
| 01-page03 | Technical note discussing the clutch withdrawal bearing and flywheel design. | ||
| View original record | - 2 - HDY.1/HP.4.1.35. As a result of some of these features the clutch withdrawal bearing is rather larger and more heavily loaded than in proportion to the Spectre bearing. It should be noted that… | ||
| 01-page04 | Cost reduction suggestions for the Wraith Clutch universal ring. | ||
| View original record | SECRET. X5109 612 To HY. from HDY. HDY.1/HP.14.1.35. C. Nor. E. Hc. Cg. HHG. Wraith Clutch. With regard to the universal ring for the withdrawal thrust bearing for this clutch, we send M. Sch. 4838… | ||
| 01-page05 | Material selection (Magnesium vs Aluminium) for the Wraith clutch casing. | ||
| View original record | SECRET 612 To BY. from HDY. HDY.1/HP.15.1.36. C. for. F. Hs. Ds. RWS. Wraith Clutch. N. Sch. 4332 herewith shows the casing for this clutch. The operating shaft is also shown. Magnesium is to be tried… | ||
| 01-page06 | Modifications and assembly points for the Wraith clutch coupling shaft. | ||
| View original record | TO PT. Copy to [REDACTED]. HS. BA. CLUTCH COUPLING SHAFT - WRAITH. N Sch.4342 herewith shows the above. The following points should be noted:- 1. The 1st.motion shaft of the gearbox is modified. 2.… | ||
| 01-page07 | Secret memo with schemes showing how to dismantle the Wraith clutch and clutch casing. | ||
| View original record | SECRET. To Mr. from HDY. C.Ker.W.Rg.Sg.WW. HDY.2/HP.6.2.35. Wraith Clutch. R. Schemes 4351 and 4362 herewith show how the clutch and clutch casing may be dismantled from the car. N.Sch.4351 herewith.… | ||
| 01-page08 | Introduction of a ventilated Borg & Beck clutch for the Wraith model. | ||
| View original record | To S. c. to Dn. c. to Hdy. 612 Ha/Smth.17/KW.10.7.36. Wraith Clutch. Whilst designing the Wraith we think we ought to take this opportunity of introducing the ventilated type of Borg & Beck clutch.… | ||
| 01-page09 | Design of the Wraith II clutch casing, comparing it to the 25/30 model. | ||
| View original record | To: [Redacted] Copy to: [Redacted] Hr/Rm. ------------ 612 R/HDY./MN.13.7.36. ------------ Wraith II. Clutch Casing. We send herewith W.Sch.4853 which shows the above. This casing is similar to that… | ||
| 01-page10 | Design of the clutch casing for the Wraith II model. | ||
| View original record | To-BY: Copy to Mr. Evernden HE. WHS. Hay/Penny ---------------- E/HDY.3/TEM.13.7.36. 612 Wraith II. Clutch Casing. We send herewith N.Sch.4853 which shows the above. This casing is similar to that for… | ||
| 01-page11 | Modification to the Wraith II pedal gap plate to incorporate a universal gas-tight joint. | ||
| View original record | To EV. Copy to Dr. Ha/Rm. WSC. 4612 E/EV.3/MN.15.7.36. LCSmith. Travel? Wraith II - Pedal Gap Plate. Most of the information concerning the Wraith II pedal gap plate has been sent to you on… | ||
| 01-page12 | Modifications to the Wraith II clutch casing to allow for gearbox assembly clearance. | ||
| View original record | K OFF 612 JES. C. W. Morton Esq. Hs/Fm. E/HDY.1/HP.17.9.36. Wraith II - Clutch. To obtain clearance for assembling the gearbox in the chassis when the engine is in place it is necessary to move the… | ||
| 01-page13 | Design differences of the Wraith II flywheel compared to the standard 25/30 HP flywheel. | ||
| View original record | LR SMITH BY. C.E.Da. RMC. Hs/FM. E/HDY.1/HP.22.6.36. Wraith II Flywheel. We send herewith N.Sch.4882 showing the flywheel for this car. There are the following/principal differences between this… | ||
| 01-page14 | Modification to the Wraith II clutch connecting link. | ||
| View original record | L.E.Smith wolf 612 III C.E.De. FFC. Ha/Fm. E/HDY.6/HP.1.9.36. Wraith II Clutch. LeC.5234 herewith shows a slight modification to the connecting link between the pedal and the clutch operating lever,… | ||
| 01-page15 | Proposed ventilated clutch and casing for the Wraith II. | ||
| View original record | Le SMITH. x1004 HS/Rm. 6/2 c. E. Day, RHO, BY. E/HDY.3/HP.1.9.36. Wraith II Clutch. With reference to the proposed ventilated clutch and casing for the Wraith, it seems to us that it would be worth… | ||
| 01-page16 | Justification for a modified Wraith flywheel, concluding the existing arrangement should be adhered to. | ||
| View original record | To R. c. to Des. c. to Idy. XSA 612 Ha/kmth.17/JM.3.9.36. Re Modified Wraith Flywheel. N.Sch.4862. We doubt whether this scheme has sufficient advantages over the present arrangement to justify the… | ||
| 01-page17 | Poor performance and replacement rates of flywheel gear rings on various car models. | ||
| View original record | Edge... (illegible) o to Es. o to Hx. Lorry (Handwritten) GRY (Handwritten) HA/SE10/HR.15.9.36. Dictated 14.9.36. re FLY WHEEL GEAR RINGS. in (Handwritten) With reference to your enquiry concerning… | ||
| 01-page18 | Costs for replacing flywheel and starter motor rings for the Phantom II model. | ||
| View original record | To Hs/Hm. 612 J 1044. Cricklewood. Oct.21.st.1936. Flywheels and flywheel rings for starter motor. I have obtained the following information that you required. PHANTOM II. The cost of changing a loose… | ||
| 01-page19 | The cost, procedure, and failure rates for the 20-25 HP Solid Flywheel and Starter Ring. | ||
| View original record | -2- 20-25 H. Solid Flywheel and Starter Ring. The cost of changing a complete flywheel is £6. 15.0. The procedure is to remove the flywheel, send it to Derby, have geared ring turned off, and a new… | ||
| 01-page20 | Quantities, designs, and reasons for failure of fly-wheel gear rings. | ||
| View original record | Hm. c to Ha. c to Hm/Smth. c to Hi. c to R-W. (struck through) c to Hy/Cmr. c to F.C.P. c to Hdy. L.F.SMITH 1644 612 HA/SB10/MR.2.12.36. re FLY-WHEEL GEAR RINGS. 1. With reference to… | ||
| 01-page21 | Flywheel and gear ring replacement, balancing, and associated costs for different car models. | ||
| View original record | - 2 - Continued:- (d) The engine always coming to rest in one place, thus localising the engagement on a few teeth of the flywheel. 4. The actual cost of replacement of a loose gear ring may not be… | ||
| 01-page22 | Damaged flywheel gear rings, comparing figures, and attributing potential causes for the failures. | ||
| View original record | Rm. c-to Hr. c-to Rm/Smth. c-to Hr. c-to Pkr. c-to Rm/Smh. c-to E. c-to Hdy. L. Smith. 10559 612 Can you now let me have your views as to what to do on Wraith. Rm. Re FLY-WHEEL GEAR RINGS. 1. With… | ||
| 01-page23 | Continued discussion on the pros and cons of replacing a loose gear ring versus a complete flywheel. | ||
| View original record | - 2 - H4/SB10/HR.2.12.36. Continued:- (d) The engine always coming to rest in one place, thus localising the engagement on a few teeth of the flywheel. 4. The actual cost of replacement of a loose… | ||
| 01-page24 | Flywheel changes and starter motor troubles for 25 HP and Bentley models. | ||
| View original record | To Rm c Rm/Smith. Kingsbury Dec 3rd 25 H. and Bentley Flywheels Re Rm/Smith W/R 1.12.36. The information I gave from bricklewood is correct. From Jan of this year to Oct 21st. was. Phantom II G 77772… | ||
| 01-page25 | Requesting information to decide between two alternative flywheel and clutch designs. | ||
| View original record | 1044. 612 G/Rb. from Rm/Smth. Rm/Smth11/R.7.12.36. N. Sch. 4982 - Flywheel & Clutch. We are very anxious to obtain the information asked for in E/L1d2/HP.3.12.36., as the choice between two… | ||
| 01-page26 | Cost estimate and comparison for a Wraith Flywheel and Clutch scheme. | ||
| View original record | To Rm. from G/Rb. c.c. to HHG. c.c. to E/Lid. 612 10th G/Rb.5/H/73/W.111236. L E SMITH Please discuss Rm. Wraith Flywheel and Clutch N. Sch.4882 and LOP.GW.962. In reply to E/Lid.2/HP.3.12.36.… | ||
| 01-page27 | Cost comparison for repairing flywheel gear rings versus changing the entire flywheel, considering design implications. | ||
| View original record | J 1047 Ha/SB16/HR.12.12.36. 612 re FLY-WHEEL GEAR RINGS. --------------------- With reference to your enquiry concerning the cost of carrying out repairs when the flywheel gear ring has become… | ||
| 01-page28 | Cost comparison for repairing damaged flywheel gear rings, considering design alterations. | ||
| View original record | c to Bm/Smth. re FLY-WHEEL GEAR RINGS. With reference to your enquiry concerning the cost of carrying out repairs when the flywheel gear ring has become damaged, we have made a comparison us between… | ||
| 01-page29 | Costs and benefits of a separate starter gear ring for the Wraith Flywheel. | ||
| View original record | X-1044 6 12 To Hm. from Rm/Smth. c. to S. c. to W. c. to RHC. c. to Mx. Rm/Smth.7/JH.15.12.36. Wraith Flywheel - N.Sch.4882. We have been making further enquiries into the need or otherwise for a… | ||
| 01-page30 | Proposal to modify the flywheel to a solid S/RC type for the Phantom III car. | ||
| View original record | (2) should be modified to have a solid S/RC flywheel, retaining the less costly bearing housing in the centre. The above remarks apply also to P.III, and we propose to put in hand a solid S/RC… | ||
| 01-page31 | Urgent internal order request for a specific type of clutch from Borg & Beck for a Wraith model. | ||
| View original record | F044 SECRET. 612 To Roy. . to G/JWH. Rm/Smth.8/JH.7.1.37. Will you please order from Borg & Beck :- One 11-A-3 type clutch complete to standard 25/30 specification, except that there should be no… | ||
| 01-page32 | Wraith II clutch, referencing schedules for the disc. | ||
| View original record | SECRET. LOM 612 BY C. E. Da. Per. HPH. E/HDY.P/HP.19.1.37. Wraith II Clutch. Be send herewith N.Sch.5008 showing the disc for the clutch to N.Sch.4398. E/HDY. | ||
| 01-page33 | The Wraith II Clutch, detailing the starter ring being made solid with the flywheel from high carbon steel. | ||
| View original record | TOTT. 612. SECRET. Lt SMITH By. C. E. DR. Rm. HFB. E/HDY.3/HP.11.2.37. Wraith II Clutch. We send herewith N.Sch.5040 showing the starter ring solid with the flywheel, both now being of high carbon… | ||
| 01-page34 | To cease ordering flywheels with separate starter rings for the Wraith model due to cost. | ||
| View original record | SECRET TOGG 612. HPS. from Rm/Smth. Rm/Smth.5/AP.15.2.37. WRAITH FLYWHEEL Will you please note that we should order no further pieces for flywheels with separate starter rings. Owing to the cost of… | ||
| 01-page35 | List of cost reduction suggestions for the Wraith Clutch, including material changes and machining modifications. | ||
| View original record | SECRET 612 Smith C.S. Des. Res. Rem. HPE E/HDY.3/HP.25.2.37 Wraith Clutch. The following suggestions have been made (see E/FSN.3/MN.18.2.37) to reduce cost:- (1) Carrier for release bearing GB.2091 to… | ||
| 01-page36 | Clearance issue with the Wraith II Clutch due to thermal expansion. | ||
| View original record | SECRET [Signature] 6/2. BY. C.C. Dr. Hs. Mr. HIVES [Strikethrough] Wraith II Clutch. It was found that with the aluminium front cover and extension for the thrust bearing, the differential expansion… | ||
| 01-page37 | Modifications to the Wraith III clutch inspection cover. | ||
| View original record | f m th 612 Ex. Dr. No. HPO. [Strikethrough] SECRET. E/HDY.2/HP.4.3.37. Wraith III - Clutch. We send herewith N.Sch.5067 showing the inspection cover in the clutch casing raised .500" in order to… | ||
| 01-page38 | Request to fit a 10' centre Borg & Beck clutch in place of the present 11' one for car 24.G.VI. | ||
| View original record | HPS. from Rm/Wym. 612 Rm/Wym.6/AP.28.4.37 24.G.VI. Will you please arrange to fit to the above car a 10" centre Borg & Beck clutch in place of the present 11" one. Rm/Wym. | ||
| 01-page39 | Wraith III slipper flywheel design, proposing blind holes instead of screwed caps for spring access. | ||
| View original record | 612 [REDACTED] from HPS. c. to Rm. [REDACTED] SECRET. WRAITH III SLIPPER FLYWHEEL Referring to LeC.5492, screwed caps are provided in the front flywheel as a means of replacing springs without… | ||
| 01-page40 | Responding to a suggestion regarding the Wraith III Slipper Flywheel. | ||
| View original record | 612. HFS. c. Fm. RHS. SECRET. E/JNR.1/HP.30.4.37. Wraith III Slipper Flywheel - HFS.E/VS.29.4.37. We do not think you would like your own suggestion because:- (1) It would be next to impossible to… | ||
| 01-page41 | Secret memo discussing a design modification for the Wraith III slipper flywheel. | ||
| View original record | 612 SECRET. WRAITH III SLIPPER FLYWHEEL. Referring to E/Jnr.1/HP.30.4.37. in connection with the above. Apparently the greatest objection to drilling the from flywheel to locate the springs instead of… | ||
| 01-page42 | Instruction to replace the clutch lining on a Wraith 25-G-VI with an experimental Ferodo lining. | ||
| View original record | d To HPS. c. to Rm/Wym. 612 Rm/NRC.7/JH.17.6.37. re Wraith 25-G-VI. As this car has an 11" Borg & Beck clutch, will you please remove the existing lining from the driven member and fit in their place… | ||
| 01-page43 | Communication regarding the implementation of lower rated slipper flywheel springs for the Wraith III model. | ||
| View original record | GRY [signature] 612. SECRET. c. WHS. Rm. Wraith III. We send you herewith Lec.5782 Slipper Flywheel Springs (Lower Rating). This scheme shows lower rated springs applied to the slipper flywheel on… | ||
| 01-page44 | Request for an extra flywheel ring and bolts for a Wraith. | ||
| View original record | To HPS. 612 Rm/NRC.4/JH.6.7.37. Extra Flywheel Ring for Wraith. Please prepare one flywheel ring in mild steel to drawing EX.28323 also 8 flywheel bolts to EX.28322. These are urgently required.… | ||
| 01-page45 | Request to dismantle a car for clutch examination due to it slipping badly. | ||
| View original record | To HPS, from Rm/NRC. C Wyn X 612 Rm/NRC.S/MB.29.9.37. RE 25-G-VI. The above car is now in the shop, and the clutch is slipping badly. Will you please have it dismantled for examination. Rm/NRC. | ||
| 01-page46 | Instruction memo to test clutch spring poundage and fit a new standard Borg and Beck driven clutch plate. | ||
| View original record | To HPS. from Rm/WRC. + 612 Rm/WRC.7/MH.30.9.37. 25 Re 35-G-VI. Please test the poundage of the clutch springs on the above car at a length of 1.687. Please fit a new driven clutch plate standard Borg… | ||
| 01-page47 | Instruction to fit a new clutch to Wraith III Unit No.2 due to wear from being run at critical speeds on the test bed. | ||
| View original record | HPS. RM/Swdl. 612 Rm/NRC.5/JH.5.11.37. re Wraith III Unit No.2. The above unit is on No.30 test bed, and the clutch is worn very badly owing to it being run at critical speeds. Will you please arrange… | ||
| 01-page48 | The clutch assemblies for the Wraith III and Bentley III models. | ||
| View original record | To By. from RM/NRC. 612 Rm/NRC./MR.11.11.37. WRAITH III AND BENTLEY III CLUTCH. With regard to the arrg. drawing GCD.2 of the above clutches, we recommend using Borg & Beck 11.A.3 and 10.A.3… | ||
| 01-page49 | Request to fit an 11' Thermoid faced clutch plate and to test the poundage of thrust springs. | ||
| View original record | HPS. Rm/Wym. 612 Rm/WRC.20/JH.18.11.37. re 24.O.VI. Will you please fit to the above car one 11" Thermoid faced clutch plate, also please test the poundage of the thrust springs and report before… | ||
| 01-page50 | Instruction to replace a 'Rabestos' faced clutch plate with a 10' 'Thermoid' faced one. | ||
| View original record | To HPS. from Rm/WRC. c. Rm/Wym. 612. Rm/WRC.8/WH.12.1.38. RE 28.G.VI. UNIT W.III NO.5. Next time the gear box of the above car is removed for any purpose, will you please fit a 10" Thermoid faced… | ||
| 01-page51 | Sending Wraith car 24.G.VI to the fitting shop to have an inertia ring fitted to the flywheel. | ||
| View original record | J 612 To HPS. from Rm/Wym. Rm/Wym.3/MH.7.2.38. WRAITH CAR 24.G.VI. We are sending the above car into the fitting shop for you to fit the inertia ring to the flywheel. The ring was removed from 27.G.VI… | ||
| 01-page52 | Order for rubber tubing for a Wraith clutch pedal stop, part number 52404. | ||
| View original record | To Roy/MS. 612 Rm/NRC.14/JH.11.2.38. WRAITH CLUTCH PEDAL STOP OF 52404. Please order from British Goodrich T. & R. Co. Three feet of rubber tube. 0.480 inside diam. 1.250 outside diam. Durometer… | ||
| 01-page53 | Request to prepare a set of parts for a Semi Flexible Flywheel Wraith. | ||
| View original record | To HPS. C. to Rm.10ym 612. Rm/NRC.2/JH.1.3.38. semi Flexible Flywheel Wraith. Please prepare 1 set of the following parts to drawings herewith. Rm.498 arrangement. Rm.499 Flywheel S/HC (use forging… | ||
| 01-page54 | Instructions for preparing a sheet brass ring and mounting a clutch on a flywheel for testing flutter. | ||
| View original record | To HPS, from Rm/MRC. c. Rm/Swdl. c. HPS/PS. c. Rm/Sym. Rm MRC.1/AP.11.3.38 612 WRAITH UNIT W.III-I Please prepare a sheet brass ring to Rm.505 herewith, on an 11" clutch which Rm/MRC. will provide,… | ||
| 01-page55 | Wraith car (28.G.VI) being sent for clutch examination after a third failure. | ||
| View original record | 612. HPS. from Rm/Sym. Rm/Wym1/R.21.3.38. WRAITH CAR - 28.G.VI. We are sending the above car into the Fitting Shop for examination of the clutch which has failed again for the third time on the road.… | ||
| 01-page56 | Comparison of inertia values in lbs.ins. for various flywheel and clutch configurations. | ||
| View original record | 612 also 111Q COPY FOR FILES. c. to Rm/Hym. Rm/WRC.8/JH.22.4.38. FLYWHEEL INERTIA lbs.ins. High Inertia flexible wheel as first fitted to 29.U.VI. Flywheel Rm.499 = 948 Ring Rm.500 = 902 Flexible… | ||
| 01-page57 | Instruction to machine the inertia ring on a Wraith flexible flywheel for easier crankcase assembly. | ||
| View original record | 612 To HPS. from Rm/HRC. c. Rm/Sym. Rm/HRC.3/MR.3.5.38. FLEXIBLE FLYWHEEL, WRAITH. Please machine .100 off the face of the existing inertia ring Rm.500, as shown on revised print herewith. Please… | ||
| 01-page58 | Requesting the preparation of a modified flexible flywheel for a Wraith or Bentley. | ||
| View original record | To EP. c. to Rm/Rym. c. to Rm/TD. 612 aho 212 Rm/NAG.3/JH.3.6.38. FLEXIBLE FLYWHEEL, WRAITH OR BENTLEY. Please prepare another flexible flywheel to the following drawings herewith. Rm.233 Arrg. Rm.334… | ||
| 01-page59 | Request to release the flywheel and clutch section for the Wraith 'B' Series to be the same as the 'A' series. | ||
| View original record | BY/CRL c. Rm. BY.12/N.4.7.38. Re: Wraith - 'B' Series. 612 Will you please release the flywheel and Clutch Section for 'B' series, to be the same as for 'A' series. BY. | ||
| 01-page60 | Request for a copy of notes on the Wraith clutch operation concerning experimental parts fitted to production cars. | ||
| View original record | 612 To LA. from Rm. Rm.1/MH.3.8.38. WRAITH CLUTCH OPERATION. With reference to LA.1/WG.22.7.38, we should like to have a copy of notes referring to experimental pieces fitted to production cars. Rm. | ||
| 01-page61 | Modification instruction for the Wraith clutch operation to increase clearance on the first 24 cars. | ||
| View original record | 612 To By. c. to Da. c. to L.A. c. to Rm/Wym. Rm/WRC.4/JH.3.8.38. WRAITH CLUTCH OPERATION. APPRX. GWD.795. On the first 24 cars, in order to use the existing clutch operating shafts, the existing… | ||
| 01-page62 | Technical note regarding the clutch operating lever for the 25/30 HP 'A' series chassis, 1 to 24. | ||
| View original record | 612 RRC/sc. Lt. G. Dept. Bm/RRC. BY/NS.4/C.12.9.38. file 25/30 HP. CHASSIS. 'A' SERIES. CHASSIS 1 to 24. CLUTCH OPERATING LEVER. Kindly note the external operating lever GW.1921 is not to be replaced… | ||
| 01-page63 | Deflection test procedure for flexible flywheels RM.498 and RM.533 for Wraith and Bentley models. | ||
| View original record | To HPS. c. to Rm/Wym. 612 Rm/NRC.1/JH.12.8.38. FLEXIBLE FLYWHEELS RM.498 & RM.533. WRAITH AND BENTLEY. We are anxious to test the deflection of the above wheels under two conditions - (a) The twist… | ||
| 01-page64 | Request to dismantle a clutch, fit a new centre plate, and standardize the crankcase oil breather pipe due to a jaggering issue. | ||
| View original record | To HPC. c. Rm/Wym. &12. Rm/PD.9/JH.30.8.38. 28.C.6. Will you please have the clutch dismantled and a new centre plate fitted. The present one has been doped with oil on clutch jaggering tests, and is… | ||
| 01-page65 | Instructions for preparing a flexible flywheel for chassis unit W.III.8 25.G.VI. | ||
| View original record | To HPS. c. to Rm/Wym. 612. Rm/NRC.1/JH.11.10.38. Unit W.III.8 chassis 25.G.VI. Flywheel. Please prepare a flexible flywheel for the above unit - Rm.537 Disc. 1 off. Rm.534 Flywheel 1 off Rm.536… | ||
| 01-page66 | Instruction to fit a new 11' clutch plate with Ferodo S.77/2 facings to Unit W.III & Chassis 25.G.VI. | ||
| View original record | To HPS. from Rm/NRC. c. HPS/FS. c. Rm/Wyn. 612 Rm/NRC.1/WH.14.10.38. UNIT W.III. & CHASSIS 25.G.VI. Please fit new 11" clutch plate fitted with Ferodo S.77/2 facings. This has been handed to FS.… | ||
| 01-page67 | Instructions for conducting flywheel flutter tests on a Wraith engine. | ||
| View original record | 8612 To HPS. from Rm/NRC. c. Rm/Swdl. c. Rm/Wym. Rm/NRC.4/WH.28.10.38. WRAITH, FLYWHEEL FLUTTER TESTS. Please fit the existing brass ring Rm.505, to the next Wraith engine to go on the bed. This will… | ||
| 01-page68 | Request to make and fit an additional brass ring to a car's clutch for flywheel flutter tests. | ||
| View original record | 612. To HPT. c. to Rm/Wym. Rm/WRC.16/JH.3.11.38. 25.0.VI Flywheel Flutter Tests. Please make another brass ring Rm.533 and fit it to the clutch of the above car. This in addition to the one called for… | ||
| 01-page69 | Modifications to the clutch for fitting a B.60 engine unit into a Wraith chassis. | ||
| View original record | G. R. WRAITH CHASSIS - MODIFICATIONS TO CLUTCH. Please receive herewith :- G.CD.1010 Modifications necessary to the clutch etc. B.60 Engine Unit in a Wraith chassis. The scheme shows a mild steel… | ||
| 01-page70 | Request to fit a new 11' Thermoid faced clutch plate to Chassis 24.O.VI. | ||
| View original record | To HPS. from Rm/NRC. γ 612 Rm/NRC.11/MR.32.11.38. WIII. NO.3 UNIT - CHASSIS 24.O.VI. Will you please fit to the above car a new standard 11" clutch plate, Thermoid faced, which has been handed to… | ||
| 01-page71 | Clutch finger setting procedure for Wraith and Bentley models. | ||
| View original record | 6/2 and 2/2 To By. c. to Ba. c. to Ba/Hay. c. to By/CR. Rm/WRC.15/JE.24.1.39. CLUTCH FINGER SETTING - WRAITH & Bentley. We set the fingers of both 11" and 10" Borg & Beck clutches on a rig which gives… | ||