Rolls-Royce Archives
| Identifier | Entry | ||
| 09-page01 | Unsatisfactory performance of the Wraith fan and proposing modifications using a Cadillac fan and new pulleys. | ||
| View original record | To HPS. from Rm/Std. 624 Rm/Std.17/AP.25.6.37 WRAITH FAN. As a result of tests on 25.G.V1. we find that the Wraith fan is not satisfactory from the point of view of noise, and that if we drop the… | ||
| 09-page02 | Particulars of Wraith improved drive fan pulleys. | ||
| View original record | PARTICULARS OF WRAITH IMPROVED DRIVE FAN PULLEYS. (Other dimensions as Wraith III. details) DRIVING PULLEYS (a) Fan speed ratio of .8/1. Ext. dia. = 5.350 Width at top of Vee = .760 Depth of vee. =… | ||
| 09-page03 | Request for a new fan and belt for a Wraith vehicle due to excessive noise and a stretched belt. | ||
| View original record | CHATEAUROUX. Rm/IMW/5/JAB.26.7.37. To. Rm. O. Rm/Std. 624 also 600a 26.G.VI. - WRAITH. Fan and Drive The fan noise is really bad at all speeds. We believe you know this and that a new fan will be sent… | ||
| 09-page04 | Reporting the failure of a new fan belt for a 25/30 HP model after a short period of use. | ||
| View original record | CHATEAUROUX. Rm/IMW/8/JAB.22.8.37. To. Rm. c. Rm/Std. c. Rm/GWH. Handwritten: 624 also 600a 26.G.VI.- 25/30 HP. Fan Belt. The new fan belt sent out did not last half a day, all the adjustment was used… | ||
| 09-page05 | Fan belt stretch, the fitting of a new Cadillac type fan to car 26.G.VI, and a request for information on water loss. | ||
| View original record | To Rm/IMW. - Chateauroux. c. to Rm. c. to Rm/OWH. c. to HPS. 634 Rm/Std.11/JH.23.8.37. Referring to your memo. Rm/IMW.8/JAB.22.8.37. in which you remark on the stretch of the fan belts fitted to… | ||
| 09-page06 | Blueprints for a modified Wraith fan, reducing the diameter of a Cadillac 5-blade fan by 2 inches for chassis 27-G-V1. | ||
| View original record | H.R.S. (crossed out) c. Rm. (crossed out) c. Rmysed. (crossed out) 624 BY/NS.11/G.17.9.37. WRAITH - FAN. Please receive herewith blueprints of Ex.S.84/5 Fan Blade - 5 off. showing a modification to… | ||
| 09-page07 | List of tracings for the revision or addition of operations for the Wraith III Chassis Fan, Section 3220. | ||
| View original record | [Redacted] C. to /Cry. Cancelled 624 EY/CS3/HH.25.10.37. Re Wraith III Chassis - Fan - Section 3220. 6 sets. Please receive herewith the following tracings for the revision or addition of operations.… | ||
| 09-page08 | Request to build three further sets of Wraith fans for six experimental cars being built. | ||
| View original record | To HPS. from Rm/Std. 624 Rm/Std.9/AP.11.10.37 WRAITH FAN Will you please build three further sets of Wraith fans exactly as per specification which you have issued to RHC. for the six cars which he is… | ||
| 09-page09 | The modification of a Wraith fan blade by reducing its diameter. | ||
| View original record | HPS. c. Rm. c. Rm/Std. BY/NS.2/G.18.9.37. 624 WRAITH - FAN. Please receive herewith blueprints of Ex.S.84/5 Fan Blade - 5 off, showing a modification to the Cadillac 5-blade fan. The modification… | ||
| 09-page10 | Endurance test on a Wraith 5 blade fan. | ||
| View original record | To HPS. from Rm/Std. c. Wym. X 624 Rm/Std.1/MR.2.11.37. We wish to run some endurance on the Wraith 5 blade fan as instructed for 6 production cars. We will hand you such a fan, will you please check… | ||
| 09-page11 | Requesting to fit a Wraith 5 blade fan to a car while it is in the shop for other modifications. | ||
| View original record | To HPS. from Rm/Std. c. Wym. 624 Rm/Std.12/MH.12.11.37. 26-G-VI. While this car is in shop for modifications to radiator, cyl. head, undershields etc. will you please fit to it the Wraith 5 blade fan… | ||
| 09-page12 | Incorrect material used for a fractured Wraith fan blade. | ||
| View original record | H1/Mr. Whitehead. 624 Rm/Std.7/JH.15.11.37. Referring to the report which you have promised to let us have on the portions of fractured Wraith fan blade submitted for your examination, the drawing,… | ||
| 09-page13 | Technical memorandum detailing the investigation and proposed alterations for a five-bladed unequal pitch fan on the Wraith lll. | ||
| View original record | WRAITH lll - FIVE BLADED UNEQUAL PITCH FAN. Please receive herewith :- E.CD.243 Five Bladed Fan and Fan Drive. Wraith lll. In accordance with request in memo Rm/Std.6/MH.29.10.37. we investigated the… | ||
| 09-page14 | Laboratory report investigating the failure of a Wraith fan blade, EW.947. | ||
| View original record | 624 Rm/STD. H1/EJW.7/JN.16.11.37. M.1458 Laboratory WRAITH FAN EW.947 USED ON 6 B.IV Your Ref. Rm/Std.7/JN.15.11.37. One blade of this fan was broken off and another cracked, in each case at the end… | ||
| 09-page15 | Laboratory report showing a broken and cracked Bentley C.B. IV radiator fan. | ||
| View original record | ROLLS-ROYCE LABORATORY REPORT. No. 1458/1 BENTLEY C.B. IV. Radiator Fan. Showing one blade broken off and another one cracked where the pressed buttress ended. 5305 C. | ||
| 09-page16 | Laboratory report with a micrograph showing cracks on a Bentley 6 B.IV Radiator Fan. | ||
| View original record | ROLLS-ROYCE LABORATORY REPORT: F.1458/2 X 10 BENTLEY 6 B.IV Radiator Fan. Showing cracks running along file scratches. | ||
| 09-page17 | Instruction to proceed with building fans for 6 Wraith cars to the latest specifications, despite material delays. | ||
| View original record | To By. from Rm/Std. c. RHC. Rm/Std.4/MH.24.11.37. x 624 WRAITH FANS. We understand that the necessary material etc. has not yet been obtained for the fans for the 6 Wraith cars being built by… | ||
| 09-page18 | Revision and production of a 5-blade fan for the Wraith car. | ||
| View original record | To HPS. from Rm/Std. 26.G.Vl. Car - Fan. The 5 blade fan for Wraith has been finally revised as shown on ECD.243 scheme - it has been brought .375 nearer matrix, the radiator inlet pipe has been… | ||
| 09-page19 | Instructions to fit a 5-blade fan set and a new Goodrich belt to a 25.O.V1. car. | ||
| View original record | 6 624 To HPS. from Rm/Std. Rm/Std.4/AP.7.12.37. 25.O.V1. Car. We will hand to you a 5 blade fan blade set and an adaptor for fitting same to a Bentley hub - will you please fit this blade set to… | ||
| 09-page20 | Requesting the production of 2 fan pulleys for old type Wraith engines. | ||
| View original record | To HPS. from Rm/Std. c. Rm/Wym. 624 Rm/Std.10/MH.15.12.37. Will you please produce 2 fan pulleys (driving) to EXS.28290 for use with .85 ratio 5 blade fans on old type Wraith engines. Rm/Std. | ||
| 09-page21 | Instruction to fit a 5-blade fan part set to a different car due to limited availability. | ||
| View original record | To HPS. c Wym 621p Rm/Std.18/JH.15.12.37 In view of the fact that the engine unit of 27.G.VI car is to be changed very shortly and as only one set of parts for 5 blade fan with .85 speed ratio is… | ||
| 09-page22 | Instructions for packing 5-blade Cadillac fans for the Wraith model with special grease. | ||
| View original record | To HPS. from Rm/Std. c. Rm/Wym. 5 BLADE CADILLAC FANS FOR WRAITH. Will you please arrange to pack the three five blade fans which you are now completing (one for 26.G.VI) with grease in the following… | ||
| 09-page23 | Requesting an endurance test on a Wraith fan with specific fitting instructions. | ||
| View original record | 624 To HPS. from Rm/Std. c. Rm/Wym. Rm/Std.1/WH.1.2.38. We hand you herewith one Wraith fan which we wish to run on endurance on No. 2 unit which is on No. 30 test bed. Will you please pack this with… | ||
| 09-page24 | To hold the order for Wraith fan blades due to a potential material change to avoid distortion. | ||
| View original record | 624 To By. from Rm/Std. c. Roy. Rm/Std.9/AP.4.2.38 WRAITH FAN. Will you please instruct the O.O. to hold up their order for Wraith fan blades as a change of material may be necessary. At the moment… | ||
| 09-page25 | Endurance testing and examination of a fan for a Wraith vehicle. | ||
| View original record | To HPS. from Rm/Std. c. Wym. Rm/Std.2/AP.8.2.38 624 WRAITH FAN ENDURANCE. Will you please hand to Rm/Std. the fan which has been removed from 27.G.Vl.- before this is stripped we wish to run 10 hours… | ||
| 09-page26 | Eliminating the fan belt adjustment on Wraith & B.III models due to new 'Fero-grip' belts with negligible stretch. | ||
| View original record | To By/Ald. from Rm/Std. 624 Rm/Std.5/AP.8.2.38 WRAITH & B.III. FANS. As a result of tests carried out to date with the new Ferodo 'Fero-grip' fan belts, it appears that we may be able to dispense with… | ||
| 09-page27 | Requesting the design of a modified fan mounting for the Wraith and Bentley III models. | ||
| View original record | To Da. c. to By. 624 also 200B Rm/Std.S/JH.18.2.38. WRAITH AND BENTLEY III FAN. As discussed today with Da. we would like you to produce a design for a modified fan mounting for both Wraith and… | ||
| 09-page28 | Material properties for Wraith and Phantom III fan blades. | ||
| View original record | To By. From Rm/Std. c. Da. c. RHC. c. Roy. Rm/Std.3/MH.19.2.38. WRAITH FAN BLADE MATERIAL AND PH.III. 624 Further to our Rm/Std.9/AP.4.2.38 we have examined the Wraith fan fitted with aluminium blades… | ||
| 09-page29 | Wraith fan mounting scheme, detailing measurements and adjustments for the fan belt. | ||
| View original record | 624 To Da. from Rm/Std. c. By. c. Da/MoS. Rm/Std.3/MH.23.2.38. WRAITH FAN MOUNTING SCHEME. Referring to the scheme which you are producing for modified fan mounting on Wraith, we have measured up the… | ||
| 09-page30 | Change of fan blade material from soft aluminium to a stiffer one for Wraith & B.III models. | ||
| View original record | To HPS. from Rm/Std. c. Rm/Wym. 624 also 200B Rm/Std.1/MH.26.2.38. WRAITH & B.III FANS. The fans which have already been made for Wraith and B.III have had blades made of exceedingly soft aluminium.… | ||
| 09-page31 | Request for a cost comparison of a revised fan mounting for the Wraith, B.III, and B.50 models. | ||
| View original record | To G/Rb. from Rm/Std. 624 also 1260 200B Rm/Std.7/AP.3.3.38 FAN COSTS - WRAITH & B.III. We send you herewith a print of revised fan mounting for Wraith and ultimately B.III. and B.50. The fan flange,… | ||
| 09-page32 | Modified fan fixing and adjustment for the Wraith III. | ||
| View original record | 624 DV/NG. c. to Rm. c. to Rm/Std. By--------------- DA.5/G.4.3.38. WRAITH 111 - MODIFIED FAN FIXING AND ADJUSTMENT. Please receive herewith E.OD.524 Modified Fan Adjustment - Wraith 111. This design… | ||
| 09-page33 | Modified fan fixing and adjustment design for the Wraith III engine. | ||
| View original record | P.W/R.S. c. to Rm. c. to Rm/Std. 624 DA.5/G.4.3.38. W H Rushton WRAITH III - MODIFIED FAN FIXING AND ADJUSTMENT. Please receive herewith E.CD.524 Modified Fan Adjustment - Wraith III. This design is… | ||
| 09-page34 | Request for a cost estimation per chassis for supplying and fitting fans and drives at a service depot. | ||
| View original record | To RHC. from Rm/Std. c. By. c. Hs. 624 1260 Rm/Std.5/MH.14.4.38. Further to our Rm/Std.7/AP.13.4.38 we would like you to give us the cost per chassis of supplying fans and drives as instructed under… | ||
| 09-page35 | Costing for the supply and fitting of a 5-Blade Fan (Cadillac Type) for a Phantom III chassis. | ||
| View original record | To Rm/Std. from G/Rb. c. to RHC. 3 Phantom III Chassis - SEC.5220 5-Blade Fan (Cadillac Type) In accordance with your request in memo ref. Rm/Std.5/MN.14.4.38, addressed to RHC. we give you the… | ||
| 09-page36 | Request to manufacture a fan pulley to specification EXS.282890 for older Wraith engine units. | ||
| View original record | 8624 To HFS. from Rm/Std. c. Rm/Wym. Rm/Std.5/MH.2.5.38. Will you please make a fan pulley to EXS.282890 to be used in conjunction with standard Wraith fans and drives on our older Wraith engine units… | ||
| 09-page37 | Request to run an endurance test on the production type fan for the Wraith No.4 unit. | ||
| View original record | 624 To HPS. c.c. Rm/Wym. Rm/Std.2/JH.5.5.38. Fan Endurance on Wraith No.4 Unit. We wish to run endurance on the production type Wraith fan on No.4 unit shortly. Will you therefore please fit to this… | ||
| 09-page38 | The 18-hour test bed endurance run of the Wraith Production Fan. | ||
| View original record | 624 To By. from Rm/Std. c. DA. c. RHC. c. By/Ald. Rm/Std.9/MH.28.6.38. WRAITH PRODUCTION FAN. We have just completed 18 hours test bed endurance at maximum speeds on the fan to the production Wraith… | ||
| 09-page39 | Modification to the Wraith fan mounting casting for production. | ||
| View original record | To By. from Rm/Std. c. Da. c. RHC. c. By/Ald. c. By/CS. 8 624 Rm/Std.7/MH.29.6.38. WRAITH FAN MOUNTING. Further to our Rm/Std.9/MH.28.6.38, production have requested that the combined water outlet fan… | ||
| 09-page40 | Blueprints for a Fan Flange designed for the 'Pauline' Streamlined car. | ||
| View original record | HPC Rm. Rm/Std 624. BY/Ald.2/G.16.8.38. WRAITH. FAN. SECTION 5220. Please receive herewith two blueprints of the following :- Ex.S.927 Fan Flange. 1 off. The above has been detailed in accordance with… | ||
| 09-page41 | Phantom III and Wraith five-blade fan failures during testing, with proposals for material changes. | ||
| View original record | 624 also 324 To By. From Rm/Std. c. Hs. c. KHC. c. Roy. c. Rd. PH.III AND WRAITH FIVE BLADE FANS. During the course of tests on fan belts which Messrs. Ferodo Ltd. are carrying out for us, we have had… | ||
| 09-page42 | Fan blades for the Phantom III and Wraith models. | ||
| View original record | B24. Bg & Rm. RHE/DWB. 2/MD.241038 Fan blades P.III & Wraith. In reply to Rm|Stot. 10/mtt.20.9.35 see file 324. | ||
| 09-page43 | Fan blades, comparing the Phantom III and Wraith models. | ||
| View original record | 624 RHC/DWB.1/MD 29.10.38. Fan Blades - P.III v Wraith further to RHC/DWB.2/MD 24.10.38 in file 32S' | ||
| 09-page44 | Internal memorandum discussing a Wraith fan failure and investigating potential causes related to blade clearances. | ||
| View original record | 624 To RHC. from Rm/Std. c. By. c. Hs. c. LA. c. By/Ald. Rm/Std.5/MR.15.11.38. WRAITH FAN. We understand that a Wraith fan has failed on a customer's car and although we have not yet received any… | ||
| 09-page45 | Successful testing and mandated use of Mobilgrease No. 6 for fans on Wraith and other chassis. | ||
| View original record | 624 also 1185 To By. from Rm/Std. c. RHC. c. Hd. c. Br. W/N. Rm/Std.4/MH.15.11.38. GREASE FOR FANS - WRAITH & ALL CHASSIS. We have run 15,000 miles on 8.B.V. car with Mobil-grease No. 6 (water pump… | ||
| 09-page46 | Instruction to fit 'Duralumin' blades to Wraith and B.V. fans and pack Bentley, Wraith and B.V. fans with Mobilgrease No.6. | ||
| View original record | 6244 424 To By, From Rm/Std. c. By/CS. Rm/Std.6/WR.25.11.38. FANS - WRAITH AND B.V. Further to our conversation re cracks in fan blades on 8.H.V. fan, will you please instruct that all future Wraith… | ||
| 09-page47 | The delayed fitting of locking plates for the Wraith fan and instructing they be fitted at Depots. | ||
| View original record | 624 To By. from Rm/Std. c. Hs. c. RHC. c. By/CS. Rm/Std.1/MH.5.12.38. WRAITH FAN - LOCKING PLATES FOR ADJUSTING AND SECURING NUTS. We understand that in spite of the Experimental Dept's request for a… | ||
| 09-page48 | Modification request for the Wraith III 'C' Series fan hub to increase radiator clearance. | ||
| View original record | Dr/Sc. [struck through] c. Ms/Sc. [struck through] c. RM/Std. 624. BY/NS.22/G.S.12.38. WRAITH Ill. 'C' SERIES. FAN JRM [signature] houlthin 1/SD [handwritten] Will you please arrange to produce a… | ||
| 09-page49 | Issue with the Wraith fan fouling the radiator bracing stays and proposed modifications. | ||
| View original record | 624 also 1135 To By. from Rm/Std. a. Hs. b. Da. c. RHC. d. LA. Rm/Std.5/MG.20.12.38. WRAITH FAN FOULING RADIATOR BRACING STAYS. Two cases have now occurred of the fan blades touching the cross bracing… | ||
| 09-page50 | The modification process for the fan on a Wraith car. | ||
| View original record | -2- RM/Std.6/WH.20.12.38. It is a very simple matter (necessitating undoing 2 nuts only) to remove the fan from a Wraith car and since these chassis are coming in for other changes (propellor shafts… | ||
| 09-page51 | Inadequate clearance between the Wraith fan and the radiator. | ||
| View original record | STD DO YOU AGREE 624 To BY. & Rm. From RHC. c. Hs. c. Da. c. IA. [Handwritten Signature] Rm [Handwritten Note] File Wraith Fan WRAITH FAN - FOULING RADIATOR. With reference to Rm/Std.6/MH.20.12.38. we… | ||
| 09-page52 | Proposed modification to prevent the Wraith fan from fouling the radiator stays for both new and existing chassis. | ||
| View original record | 624 File Wraith Fa BY/NS. c. Rm. c. Rs/DF. DA.11/G.22.12.38. WRAITH FAN FOULING RADIATOR STAYS. hilia R(IS)D Referring to Rm/Std.6/MG.20.12.38, we have evolved a modification to the radiator cross… | ||
| 09-page53 | Issue of the Wraith model's fan fouling the radiator. | ||
| View original record | RHC. from Rm. c. Hs. c. Ey. c. Da. c. LA. 624. Rm8/R.2.1.39. WRAITH FAN - FOULING RADIATOR. With reference to RHC2/PH.21.12.38., we take exception to the remark that the Experimental Dept. have not… | ||
| 09-page54 | Fan hub modification for Wraith 'A' and 'B' series chassis to increase clearance. | ||
| View original record | 62H HY/HS.8/C.14.1.39. WRAITH CHASSIS 'A' and 'B' SERIES. Fan - Section R220. Further to memo HY/Ald.10/C.6.1.39.; the modification to the fan hub, instructed on the above memo, increases the… | ||
| 09-page55 | The return of a scrap Wraith fan belt to the supplier, Ferodo Ltd. | ||
| View original record | 694 To D/BP. from Rm/Std. c. Rd/FC. Rm/Std.8/NH.16.1.39. We are sending into the Despatch Stores one Wraith fan belt - this is scrap and is to be returned to Messrs. Ferodo Ltd. marked "For the… | ||
| 09-page56 | Requesting the modification of a standard Wraith fan fitted to engine 30.G.VII. | ||
| View original record | 624 o 666 To HPS. c. to HPS/RH. Rm/Ed.6/JH.21.6.39. Fan for 30.G.VII. We observe that a standard Wraith fan has been fitted to the above engine unit for the above chassis instead of the modified fan… | ||