Rolls-Royce Archives
| Identifier | Entry | ||
| 05-page01 | Dispatch of drawings and material recommendations for the Wraith engine. | ||
| View original record | To RY. [redacted] Copy to Mr. Hs. KNS. [redacted] E/JNR.1/MN.17/12/34. Handwritten: x389 [crossed out] Handwritten: 617 RE WRAITH ENGINE. We send you herewith LeC 4260 showing the slipper flywheel fan… | ||
| 05-page02 | List of recommendations concerning the Wraith crank. | ||
| View original record | J 1044 617 CRANK. - WRAITH Typed 14.12.36. RECOMMENDATIONS MADE TO E. re WRAITH CRANK. 1. 2 1/2 journals 1/4" wider. 2. 1/16" off webs. 3. 1/8 off pins in length compared with standard crank. Reduce… | ||
| 05-page03 | Small modifications to the Wraith III Crankshaft to reduce manufacturing costs. | ||
| View original record | Service Podes 617 Groth SECRET. BY. c. Rm. HPS. E/JNR.3/HP.5.3.37. Wraith III Crankshaft. We send you herewith:- LeC.5557 showing some small modifications to the crankshaft. These have been made by Mr… | ||
| 05-page04 | Order for four Wraith crankshafts with material and crankpin design alterations. | ||
| View original record | HPS. from Rm/Swdl. 617 Rm/Swdl.9/AP.25.5.37 WRAITH CRANKSHAFT Will you please order 4.Wraith crankshafts to be made in Hykro. Other than the material alteration the crankpins to have 2 - .125 dia. and… | ||
| 05-page05 | Request to alter the drawings for the Wraith crankshaft damper flywheel to include oil drain holes. | ||
| View original record | To By 617 ? Rm/Gry.2/JH.22.5.37. Spring Drive - Wraith. The drawings of the crankshaft damper flywheels for Wraith do not show the usual oil drain holes. Such a damper that has run on 6-B-IV is full… | ||
| 05-page06 | Requesting an alteration to the Wraith crankshaft drawing based on tests carried out on the Bentley. | ||
| View original record | To By. c. to E. 617 Rm/Swdl.1/JH.30.6.37. WRAITH CRANKSHAFT. Will you please alter the crankshaft drawing of the above unit to include 2 -.125 dia. holes in each crankpin in place of the existing… | ||
| 05-page07 | Request to adapt the oil retainer disc for the Wraith III No.6 crankshaft assembly. | ||
| View original record | To HPS. from Rm/Swdl. Crankshaft 617 Rm/Swdl.1/AP.13.9.37 WRAITH III.No.6. Will you please adapt the oil retainer disc in accordance with the attached drawing Rm.445 to the above unit on assembly.… | ||
| 05-page08 | Production instruction for six sets of the Wraith III chassis crankshaft, section 5010. | ||
| View original record | c.c. Rm/Gry. 617 BY/CS3/HH.22.9.37. Rm Re Wraith III Chassis - Crankshaft - Section 5010. 6 sets. Please instruct for the production of 6 sets of the above section to the following L.O.P. R.W.913… | ||
| 05-page09 | Requesting details for an experiment to increase the size of crankshaft balance weights on the Wraith III engine. | ||
| View original record | c. Rm. 617 DA.16/G.S.11.37. WRAITH 111. CRANKSHAFT BALANCE WEIGHTS. Will you please issue details for increased size of balance weights to be tried on the Wraith 111 engine as follows :- Width of both… | ||
| 05-page10 | Denying a request to delete the collar from the crankshaft front journal oil cap stud for the Wraith III. | ||
| View original record | PHO/ED. O. HY/NS. C. Rm. 617 Swell Do you agree R.m WRAITH III - CRANKSHAFT FRONT JOURNAL OIL CAP STUD. Replying to your request for the deletion of the collar from the front journal oil cap stud, may… | ||
| 05-page11 | Design modification for the Wraith III crankshaft rear end oil retainer, including a hand-drawn diagram. | ||
| View original record | BI/ES. c. Rm. SWDL Heles DA. 16/G.17.11.37. WRAITH 111 - CRANKSHAFT REAR END OIL RETAINER. 617 Please receive herewith E.CD.238 Crankshaft Rear End Oil Retainer, Wraith 111. This design follows the… | ||
| 05-page12 | Instruction regarding new drawings for large and small balance weights for the Wraith III Chassis crankshaft. | ||
| View original record | To-HDEV O-HYV O-RMO/CMM. C. Rm/Swdl. O-WRC/AH. 617. BY/CS11/EH.26.11.37. Re Wraith III Chassis - Crankshaft - Section 5010. Please receive herewith blue prints of the following new drawings, detailed… | ||
| 05-page13 | The incorporation of new increased inertia balance weights for the Wraith III crankshaft. | ||
| View original record | 617 To By. c. to By/CS. c. to Da/MoS. c. to HPS/RH. Rm/Swdl.10/JH.29.11.37. WRAITH III CRANKSHAFT. ----------------------- It has been decided to incorporate the new increased inertia balance weights… | ||
| 05-page14 | Instruction to manufacture two Wraith crankshafts from .4 carbon steel. | ||
| View original record | HPS. from Rm. c. Rm/Wym. J 617 Rm.2/AP.13.12.37. WRAITH CRANKSHAFT Will you please put in hand forthwith, two Wraith crankshafts in .4 carbon steel. When the forgings are in the Factory, further… | ||
| 05-page15 | Alterations to the Wraith spring drive damper to overcome crankshaft periods. | ||
| View original record | To HPS. from Rm/Swdl. c. Rm/Wym. WRAITH SPRING DRIVE DAMPER. It has been found necessary to increase the damper load from 17 lbs. to 22 lbs. at 1 1/2 radius in order to overcome crankshaft periods.… | ||
| 05-page16 | Experimental Wraith crankshafts, comparing different steel types and the effect of nickel content. | ||
| View original record | ROY Mr. Hs. Mr. Rms. c. Rm. 617. BY.5/G.29.12.37. SWDL WRAITH CRANKSHAFTS. Referring to the two experimental shafts for which you obtained a price from the English Steel Corporation at our request,… | ||
| 05-page17 | Decision on the material selection for Wraith crankshafts. | ||
| View original record | Files SWDC - 617 To: Hy's. Cr.Ho. Cr.RIC. C.RM. ROY.8/B. 30.12.37. WRAITH CRANKSHAFTS. It is noted from Ry.5/G.29.12.37 that it is not possible to standardise the use of Carbon Steel in the early… | ||
| 05-page18 | Experimental crankshaft damper with a solid drive for the fan pulley for the Wraith III. | ||
| View original record | BY/RS. c. Rm. 614 Files DA.12/G.5.1.38. WRAITH 111. CRANKSHAFT DAMPER WITH SOLID DRIVE FOR FAN PULLEY. (EXPERIMENTAL ONLY). Please receive herewith E.CD.326 - Crankshaft damper with solid drive for… | ||
| 05-page19 | Requesting a Wraith crankshaft for deflection tests to fit Packard type balance weights. | ||
| View original record | 8 614 To HPS. from Rm/Gry. c. W.Bell. c. Rm/Wym. Rm/Gry.13/MH.6.1.38. WRAITH CRANKSHAFT. The Design Office want to fit Packard type balance weights to Wraith crankshaft in preparation for Phoenix.… | ||
| 05-page20 | W. III & B III Crankshaft with Packard Type Balance Weights. | ||
| View original record | 617. Bm Da 10/G 18.1.38. W. III & B III Crankshaft with Packard Type Balance Weights. file 1116. | ||
| 05-page21 | Oil retaining scheme for the Wraith crankshaft rear end. | ||
| View original record | To RHC/S.Smith from Rm/Swdl. c. By. 617 WRAITH CRANKSHAFT REAR END. Re your enquiry regarding which oil retaining scheme to use on the next 12 chassis you are to build, the new scheme ECD.238 has not… | ||
| 05-page22 | The fitting of a Crankshaft Damper with Solid Drive for the Fan Pulley on the Wraith model. | ||
| View original record | WRAITH (crossed out) Please say.. 29 GD To Rm. from HPS/WSC. 617 Rm HPS/WSC.16/BA.1.3.38. File Wraith Spring Drive. ECD.336 Crankshaft Damper with Solid Drive for Fan Pulley. Please note the above… | ||
| 05-page23 | Wraith Spring Drive and fitting a crankshaft damper. | ||
| View original record | To HPS/WSC. Rm/Wym.9/JH.2.3.38. 617 WRAITH SPRING DRIVE. ECD.336 crankshaft damper with solid drive for fan pulley. In reply to your memo. HPS/WSC.16/BA.1.3.38. we would like the above scheme fitting… | ||
| 05-page24 | The oil retaining device for the Wraith crankshaft rear end, which is holding up the release of 100 sets of parts. | ||
| View original record | 617. To By. from Rm/Swdl. c. Hy/CS. c. RHC/S.Smith. c. Mx. c. Roy/Ms. c. Rm/Swdl.5/AP.22.3.38 WRAITH CRANKSHAFT REAR END. We understand that the above with reference to the oil retaining device is… | ||
| 05-page25 | The standardization of turned finish crankshaft webs for various car models. | ||
| View original record | To By. c. to Ba. c. to By/CS. c. to HFS. 617 also 417 Rm/Twdl.4/JH.13.3.38. WRAITH III & BENTLEY III CRANKSHAFT. Following the satisfactory 40hr. endurance completed on Bentley II with turned finish… | ||
| 05-page26 | Letter to The British Goodrich Co. Ltd. inquiring about cylindrical rubber blocks to replace coiled springs in an experimental apparatus. | ||
| View original record | γ 1265 Experimental Dept. Rm/Gry.7/MH. 8th. June 1938. The British Goodrich Co. Ltd., BURTON-ON-TRENT. For the attention of Mr.Skellon. Dear Sirs, We have an experimental apparatus in which we should… | ||
| 05-page27 | Letter from British Tyre & Rubber Co. Ltd. regarding a blueprint for a mould to produce reinforced rubber blocks. | ||
| View original record | X Wraith Crankshaft . 614 ? letter in 1163. BRITISH TYRE & RUBBER Co. LTD. TELEPHONE: BURTON-ON-TRENT 2977 (2 LINES) TELEGRAMS: "BRITGOODS, BURTON-ON-TRENT." DIRECTORS: SIR WALROND SINCLAIR, K.B.E.,… | ||
| 05-page28 | Blueprint showing the arrangement of a mould for a compression block. | ||
| View original record | SCALE: FULL SIZE ARRANGEMENT OF MOULD FOR COMPRESSION BLOCK SECTION A-A SPLIT CENTRE RING PLAN WITH TOP PLATE REMOVED. MATL. MILD STEEL MACHINE EXCEPT WHERE MARKED 'B' FINISH ALL OVER BY B. R. & CO.… | ||
| 05-page29 | Modifications to the Wraith III and Bentley 111 dynamo drive to increase torsional flexibility. | ||
| View original record | BY/NS. c. Rm. e. Rm/Swdl. DA.3/G.12.7.38. WRAITH 111 and BENTLEY 111 DYNAMO DRIVE WITH INCREASED TORSIONAL FLEXIBILITY. Please receive herewith R.CD.793 Modified Flexible Coupling for Dynamo Drive.… | ||
| 05-page30 | The blueprint for a modified flexible coupling dynamo drive for the Wraith III chassis. | ||
| View original record | File ~~D. Dept.~~ ~~S. Dept.~~ ~~RPS~~ ~~HHG/C.N.~~ ~~Mr.~~ 617 BY/NS.1/N.22.7.38. Wraith III - Modified Flexible Coupling Dynamo Drive. We send you herewith blueprint of S.CD.804 - Modified Dynamo… | ||
| 05-page31 | Notes on the Spring Drive and Crankshaft Damper for Wraith III, B.III & B.50 models. | ||
| View original record | 614. Rm Da. 6/G. H 8 38 Wraith III, B.III & B.50 Spring Drive & Crankshaft Damper file 111b. | ||
| 05-page32 | Letter to The Manganese Bronze & Brass Co. Ltd. requesting suggestions for a flexible rubber coupling for a dynamo drive. | ||
| View original record | 614 EXPERIMENTAL DEPARTMENT. Rm/Swdl.10/JH. 20th August, 1938. The Manganese Bronze & Brass Co.Ltd., Caxton House, Westminster, LONDON. S.W.1. Dear Sirs, Upon the recommendation of our Aero Dept. we… | ||
| 05-page33 | Letter from The Manganese Bronze & Brass Co. Ltd. regarding a 'Dynaflex' Wraith III Dynamo Drive Shear Rubber Coupling. | ||
| View original record | THE MANGANESE BRONZE & BRASS COMPANY LTD SPECIALISTS IN NON-FERROUS ALLOYS ST. DAVIDS WHARF LONDON E.14 MARINE PROPELLERS GENERAL CASTINGS BRASS & BRONZE INGOTS HANDFORD WORKS IPSWICH ROLLED FORGED… | ||
| 05-page34 | Letter from a supplier regarding a Wraith III Dynamo 'Couploflex' coupling. | ||
| View original record | THE MANGANESE BRONZE & BRASS CO. LTD. DYNAFLEX NEW ADDRESS AS FROM SEPTEMBER 6th, 1938 WATLING STREET DUNSTABLE BEDS. Telegrams: "DYNAFLEX, DUNSTABLE" Telephone: DUNSTABLE 533 OUR REF: HH/B/R.7/C.… | ||
| 05-page35 | Page 2 of a letter from The Manganese Bronze & Brass Co. Ltd. regarding business terms. | ||
| View original record | THE MANGANESE BRONZE & BRASS Co. Ltd. SHEET No. 2. DATED 13. 9. 38. Messrs. Rolls Royce Ltd. Terms:- Nett cash monthly. Delivered your Works. Yours faithfully, THE MANGANESE BRONZE & BRASS CO. LTD.,… | ||
| 05-page36 | Drawing of a flexible coupling for a compressor drive. | ||
| View original record | 387051 FOR CHECKING AFTER MANUFACTURE COPY 0.4274" C 15° 18.S.W.G. A 2.913" DIA 2.0476" DIA .236 RAD B SECTION ON 'CD' DETAILS IN ACCORDANCE WITH R.330 FOR DETAIL SEE 387044A. SCALE 1/1 & 5/1 PART NO… | ||
| 05-page37 | Technical report detailing the results of a Wraith crankshaft bending test. | ||
| View original record | 614 To Rm/Gry. from HPS/W.Bell. HPS/WB.2/CB.22.9.38. WRAITH CRANKSHAFT BENDING TEST. EW.1370 (VCM.7137, Y.869) Crankshaft Details. The crankshaft was supported at journals 1 and 7 on pieces of… | ||
| 05-page38 | Page from a report detailing the mathematical equation for displacements represented by a family of ellipses. | ||
| View original record | -2- HPS/WB.2/CB.22.9.38. and 300 lb. (those for loads of 200 lb. and 250 lb. were omitted to avoid confusion) were plotted as a polar curve (BL.2207, Sheet V); it will be seen that this curve… | ||
| 05-page39 | Diagram illustrating the results of a crankshaft bending test for the Wraith model. | ||
| View original record | BL 2207 SHEET 1 DISTANCES BETWEEN BEARINGS NOT TO SCALE DIAGRAM VERTICAL SCALE 1" TO .020" LOAD APPLIED AT 1 & 6 LOAD APPLIED AT 2 & 5 LOAD APPLIED AT 3 & 4 BEARING INDICES 6 5 4 3 2 1 WRAITH… | ||
| 05-page40 | Blueprint diagram illustrating the results of a bending test on a Wraith model crankshaft. | ||
| View original record | WRAITH CRANKSHAFT BENDING TEST 19.9.38 CRANKSHAFT DETAILS VCM 7137 Y 869 EW 1370 No. 2 JOURNAL 1 & 6 2 & 5 3 & 4 31° ab = .027" FOR LOAD OF 200 LBS/CR.PIN No. 3 JOURNAL Diagram 2 SCALE 1" TO .010" No.… | ||
| 05-page41 | Blueprint diagram showing the results of a bending test on a Wraith model crankshaft. | ||
| View original record | WRAITH CRANKSHAFT BENDING TEST 19.9.38 VCM 7137K CRANKSHAFT DETAILS BL 2207 SHEET III Y 869 EW 1370J 1 & 6 2 & 5 3 & 4 No. 2 JOURNAL No. 3 JOURNAL DIAGRAM 3 SCALE 1" = .010" No. 4 JOURNAL No. 5… | ||
| 05-page42 | Blueprint showing four graphs from a Wraith crankshaft bending test, plotting deflections against loads. | ||
| View original record | WRAITH CRANKSHAFT BENDING TEST 17. 9. 38 VCM 7137 Y 869 EW 1370 CRANKSHAFT DETAILS. DIAGRAM 4 Top-left graph: (1/1000") (LBS) A 3 & 5 2 & 6 ALONG 1 & 6 Top-right graph: (1/1000") (LBS) A 3 & 5 2 & 6… | ||
| 05-page43 | Diagram illustrating the results of a crankshaft bending test for a Wraith model. | ||
| View original record | WRAITH CRANKSHAFT BENDING TEST VCM 7137 T 869 EW 1370 CRANKSHAFT DETAILS .027 RAD 2 & 5 300 LBS 150 LBS b o a 1 & 6 3 & 4 α = 22° oa = .022 ob = .033 SCALE 1" TO .010" DIAGRAM S BL 2207 SHEET V | ||
| 05-page44 | Blueprint detailing the results of a crankshaft bending test for the Wraith model. | ||
| View original record | WRAITH CRANKSHAFT BENDING TEST EW 1370 (VCM 7137, Y.869) -> CRANKSHAFT DETAILS DEFLECTIONS(?) AT JOURNALS FOR LOADS OF 200 LBS. PER CRANKPIN ON PAIRS OF CRANKPINS. TABLE I LOAD ON CRANKPINS 1 & 6 TEST… | ||
| 05-page45 | Crankshaft bending test results for the Wraith model, showing deflections under varying loads and directions. | ||
| View original record | WRAITH CRANKSHAFT BENDING TEST EW 1370 (VCM.7137, Y.869) - CRANKSHAFT DETAILS DEFLECTIONS() For VARYING LOADS & DIRECTIONS Of LOADING At CENTRE JOURNAL Table 1: LOAD APPLIED At 240° To 1&6 DIRECTION… | ||
| 05-page46 | Adaptation of a 'Dynaflex' coupling for the Wraith III dynamo drive. | ||
| View original record | SwDL DA.5/C.23.9.38. Poole c. Rm. [REDACTED] 617 WRAITH III. DYNAMO DRIVE WITH "DYNAFLEX" COUPLING. Please receive herewith E.CD.914 Dynaflex Type Flexible Coupling for Dynamo Drive. Wraith III. This… | ||
| 05-page47 | Letter to The Manganese Bronze & Brass Co. Ltd. regarding the suitability of a rubber coupling for an engine. | ||
| View original record | 617 Experimental Dept. Rm/Swdl.3/MH. 28th. September 1938. The Manganese Bronze & Brass Co.Ltd., Watling Street, Dunstable, BEDS. Dear Sirs, We thank you for your letter of the 13th. inst. giving… | ||
| 05-page48 | Failure of softer dynamo drive rubbers and the plan to revert to the original part. | ||
| View original record | 67 To By. from Rm/Swdl. c. RHC. c. LA. c. Roy/Ws. c. By/CS. Rm/Swdl.6/MH.10.10.38. DYNAMO DRIVE RUBBERS. The softer dynamo rubbers (30-35 durometer hardness) provisionally standardised by us in our… | ||
| 05-page49 | Letter to The Manganese Bronze & Brass Co. regarding the production of a modified coupling. | ||
| View original record | 617 Experimental Dept. 11th. October 1938. Rm/Swdl.9/MH. The Manganese Bronze & Brass Co., Watling Street, Dunstable, BEDS. Dear Sirs, Further to our letter of the 28th. September, we should be… | ||
| 05-page50 | Letter concerning the cost and delivery of new and existing couplings for trials. | ||
| View original record | Handwritten: Filee 2617 THE MANGANESE BRONZE & BRASS COMPANY LIMITED IN ASSOCIATION WITH EMPIRE RUBBER CO. (PROPRIETORS: H.G. MILES LTD) "DYNAFLEX" SPECIALISTS IN DESIGNS AND MANUFACTURE OF RUBBER… | ||
| 05-page51 | Letter to The Manganese Bronze & Brass Co. putting a trial for experimental couplings on hold due to cost. | ||
| View original record | 617 Experimental Dept. Rm/Swdl.3/MH. 17th. October 1938. The Manganese Bronze & Brass Co., Watling Street, Dunstable, BEDS. Dear Sirs, We thank you for your letter HH/W/G.3 of the 13th. inst.… | ||
| 05-page52 | Letter concerning the modification of moulds for coupling ECD.914. | ||
| View original record | Files 617 THE MANGANESE BRONZE & BRASS COMPANY LIMITED IN ASSOCIATION WITH EMPIRE RUBBER CO. (PROPRIETORS: H.G. MILES LTD) "DYNAFLEX" SPECIALISTS IN DESIGNS AND MANUFACTURE OF RUBBER BONDED TO METAL… | ||
| 05-page53 | Letter to a supplier regarding a mould cost reduction for a coupling and potential design modifications. | ||
| View original record | 617 Experimental Dept. Hm/Swdl.2/MH. 20th. October 1938. The Manganese Bronze & Brass Co., Watling Street, Dunstable, BEDS. Dear Sirs, We thank you for your letter of the 19th. inst. regarding your… | ||
| 05-page54 | Note regarding W.III and B.60 crankshafts with a reference to another file. | ||
| View original record | 617. By Ins. Rm Swdl. HPS Da 4/G. 27.10.38 - W.III & B.60 crankshafts see file 1116 | ||
| 05-page55 | Suggestion for a more flexible dynamo drive for the Wraith III, which could be made from aluminium die-casting. | ||
| View original record | 30/ 67 c. Rm. Filer SWDC DA.8/G.4.11.38. WRAITH III. DYNAMO DRIVE. Herewith E.CD.990, a suggestion for a dynamo drive giving increased flexibility without end loading the dynamo bearing, and without… | ||
| 05-page56 | Letter from The Manganese Bronze & Brass Co. Ltd. chasing a response regarding a coupling design. | ||
| View original record | feiler 617 THE MANGANESE BRONZE & BRASS COMPANY LIMITED IN ASSOCIATION WITH EMPIRE RUBBER CO. (PROPRIETORS: H. G. MILES LTD) “DYNAFLEX” SPECIALISTS IN DESIGNS AND MANUFACTURE OF RUBBER BONDED TO METAL… | ||
| 05-page57 | Letter to a supplier regarding a flexible coupling design and a request for quotation. | ||
| View original record | 617. Experimental Dept. Rm/Swdl.15/MH. 30th. November 1938. The Manganese Bronze & Brass Co. Ltd., Watling Street, Dunstable, BEDS. Dear Sirs, In reply to your letter of the 28th. inst. we have… | ||
| 05-page58 | Letter from The Manganese Bronze & Brass Co. Ltd. clarifying a technical enquiry regarding torsional flexibility and torque for a coupling. | ||
| View original record | Redex 617 THE MANGANESE BRONZE & BRASS COMPANY LIMITED IN ASSOCIATION WITH EMPIRE RUBBER CO. (PROPRIETORS: H.G. MILES LTD) "DYNAFLEX" SPECIALISTS IN DESIGNS AND MANUFACTURE OF RUBBER BONDED TO METAL… | ||
| 05-page59 | Letter to The Manganese Bronze & Brass Co. providing specifications on maximum torque and rate of flexibility. | ||
| View original record | 614 Experimental Dept. Rm/Swdl.8/MH. 5th. December 1938. The Manganese Bronze & Brass Co., Watling Street, Dunstable, BEDS. Dear Sirs, We are in receipt of your letter of the 2nd. inst. and give… | ||
| 05-page60 | Letter from a supplier discussing the suitability and safety factor of a 'Couploflex' Generator Coupling, addressing torque and torsional vibration concerns. | ||
| View original record | 617. THE MANGANESE BRONZE & BRASS COMPANY LIMITED IN ASSOCIATION WITH EMPIRE RUBBER CO. (PROPRIETORS: H. G. MILES LTD) "DYNAFLEX" SPECIALISTS IN DESIGNS AND MANUFACTURE OF RUBBER BONDED TO METAL,… | ||
| 05-page61 | Comparison of various schemes for crankshaft balance weights for the Wraith III engine. | ||
| View original record | WRAITH III. COMPARISON OF VARIOUS SCHEMES OF BALANCE WEIGHTS. In the schedule below of existing and proposed schemes the balance masses are designated 1A, 1B, 2A, 2B, 2C .... etc. the number being… | ||
| 05-page62 | Comparison of bearing loads and pressures for different balance weight schemes. | ||
| View original record | - 2 - BY/B.8/G.29.12.38. Scheme of Balance Weights Used. | Load on each of bearings below due to rotating masses only. (lbs). | Max'm.load on each of bearings below due to rotating and reciprocating… | ||
| 05-page63 | Technical memo comparing two engine schemes based on their effects on bearings and critical speed. | ||
| View original record | - 3 - Effects on bearings. Comparing it with the R.R. system, Scheme (b) requires only 6 identical pieces against 8 pieces, (of two sizes) with the RR. system. Scheme (b) gives rather lighter loading… | ||
| 05-page64 | Request to modify the drawing for the Wraith 'C' Series rear main bearing crankshaft. | ||
| View original record | 617. To: HY/CS. File Rm/Swd1 De/MDS. RHC/TVT. BY/NS.6/MG.18.4.39 WRAITH "C" SERIES REAR MAIN BEARING - CRANKSHAFT Will you please modify the drawing of the rear Main Bearing to give an end clearance… | ||
| 05-page65 | Cost estimation and analysis for a Smith Crankshaft, comparing versions with and without integral balance weights. | ||
| View original record | To Messrs. From Mr/Sedl. C. B. C. S. H. S. G. Og/Sg. G. Dr. H/dms. S. H/axdl. HS/Sedl.1/HWH.17.6.19. SMITH CRANKSHAFT (Ex.9121). The following are estimations of the cost analysis on the above from… | ||
| 05-page66 | List of five potential cost-saving measures for crankshaft manufacturing, comparing options and their impact on factory cost. | ||
| View original record | -2- AM/Sedl.1/RM.17.6.39. Feasible economies from the following:- (1) Carbon crankshaft compared with F.O.M. saves 2/- (2) Boring of pins and journals as at present but sealing by disc washers and not… | ||