Rolls-Royce Archives
| Identifier | Entry | ||
| 08-page01 | Wraith II exhaust system and low-pressure oil pipe components. | ||
| View original record | EY. c. RMC c. HS/Rm. 404 2/3 Wyman [Illegible Signature] E/JNR.1/HP.9.7.36. Wraith II. We send you herewith:- LeC.5169 - Front Silencer. ✓ LeC.5175 - Tail Pipe Suspension. ✓ LeC.5194 - Rear Silencer.… | ||
| 08-page02 | The surface area required for exhaust system parts on the Wraith Chassis. | ||
| View original record | 10hh 623 To Rm. Rm/Wym.1/JH.9.1.37. WRAITH CHASSIS. In reply to Rm.5/R.7.1.37. I shall require 25 sq.ft. of surface to accomodate the various parts of the exhaust system, air silencer and… | ||
| 08-page03 | Request to fabricate a 'trouser piece' for an experimental Wraith exhaust system. | ||
| View original record | SECRET. 623. HPS from Rm/Wym. LD/LH [crossed out] Rm/Wym2/M10.2.37. Wraith Exhaust System. (Experimental) Will you please make up a trouser piece to enable us to join up 2 - 1.500" diameter pipes to a… | ||
| 08-page04 | Request to fabricate a tail pipe and alter the swan neck pipe for a Wraith exhaust system. | ||
| View original record | SECRET 1284.623 HPS. from Rm/Whym Rm/Whym.4/AP.6.3.37. WRAITH EXHAUST SYSTEM Will you please make up for us one tail pipe for the above car, dimensions already given to T.Elston. This will also mean… | ||
| 08-page05 | Request to fabricate a baffle and a nose piece for the Wraith exhaust system. | ||
| View original record | To HPS. 623. Rm/Wym.16/JH.2.4.37. Wraith Exhaust System. Will you please make up for the above one baffle 6.00" x 2.00" and a nose piece for the centre pipe of 2.00" dia. Rm/G.H.Whyman. | ||
| 08-page06 | Request to fabricate and fit exhaust system components to a Wraith 24-G-VI for testing. | ||
| View original record | To HPS. 623 Rm/wym.5/JH.16.4.37. Wraith 24-G-VI Exhaust System. Will you please make up and fit to the above car one downtake pipe with a front expansion box 28.50" x 5.00" for test purposes. Also a… | ||
| 08-page07 | Requesting the build and fitment of a new standard silencer and tailpipe for comparative purposes. | ||
| View original record | f 623 HPS. from Rm/Wym. Rm/Wym.12/AP.30.4.37. 24.G.Vl. Whilst you have the above car in the fitting shop will you please build up and fit a standard centre silencer, rear silencer and tail pipe. The… | ||
| 08-page08 | Redesigned exhaust suspension for the Wraith III chassis. | ||
| View original record | WXM 623 File [signature] BY. SECRET. C. HPB. Rm. E/JNR.11/HP.28.6.37. Wraith III - Exhaust Suspension. Please receive herewith:- Lec.5752 showing a redesigned suspension which consists of hanging the… | ||
| 08-page09 | Request to prepare and fit exhaust suspension parts for the Wraith III 10,000 miles car. | ||
| View original record | To HPS. 623 Rm/Wym.5/JH.29.6.37. Wraith III Exhaust Suspension. Will you please prepare the exhaust suspension parts as shewn on LeC.5752 so that they can be fitted to the next 10,000 miles car… | ||
| 08-page10 | Request to build a nickel-plated exhaust system for a Wraith III car due to the short lifespan of the existing mild steel system. | ||
| View original record | To HPS. from Rm/Whym. 623 Rm/Whym.21/AP.9.7.37 WRAITH III. EXHAUST SYSTEM. Will you please build up a downtake pipe, front expansion box and intermediate pipe for 26.G.V1. in mild steel, nickel plated… | ||
| 08-page11 | Addition of a stay to the Wraith III exhaust system's forward expansion box. | ||
| View original record | 623 BY. c. Rm. HPS. WYMAN (Stamped and crossed out) SECRET, File (Signature) E/JNR.2/HP.9.7.37. Wraith III Exhaust System. Please receive herewith:- Lec.5767 showing a stay at the front of the forward… | ||
| 08-page12 | The repair and ongoing issues with the exhaust system stays on a Wraith model. | ||
| View original record | To. Rm. C. Rm/Wym. C. Rm/C.H. CHATEAUROUX. Rm/IMW/S/JAB.28.7.37. 623 26.G.VI.- WRAITH. Exhaust System. When the car arrived, the stays both at the front and rear of the engine were buckled. New stays… | ||
| 08-page13 | Instruction memo regarding experimental alterations to the Wraith III car's exhaust system. | ||
| View original record | HPS. from Rm/Wym. 623 Rm/Wym.17/AP.18.8.38 WRAITH III. CAR. Will you please instruct T.Elston to carry out all the necessary experimental alterations to the Wraith exhaust system to Rm/Wym's verbal… | ||
| 08-page14 | Weight reduction for the Wraith III exhaust system. | ||
| View original record | To HPS. from Rm/Wym. X 623 Rm/Wym.9/MH.7.9.37. WRAITH III EXHAUST SYSTEM. We are trying to get some weight off our exhaust system on the above car and would like a system building up and fitting to… | ||
| 08-page15 | Specification sheet for exhaust system components, detailing their diameters and material gauges. | ||
| View original record | 2. Rm/Wym.9/MH.7.9.37. Downtake pipe 2.00" dia. 17 gauge .056" Front Exp. box. 17 gauge .056" Front exp. box outlet. 2.00" dia. 17 " .056" Front intermediate pipe. 2.125" dia. 17 " .056" Both inlet &… | ||
| 08-page16 | New welded construction method for Wraith III exhaust fittings. | ||
| View original record | E. Dept. S. Rm. cy. RUC/OAK. 623 DA.5/G.2.10.37. WM WRAITH 111 - EXHAUST FITTINGS. Please receive herewith R.CS.114 scheme showing welding of Expansion Box and Silencer Flanges. This method of… | ||
| 08-page17 | Instructions for fitting a lightened Wraith III exhaust system and preparing a similar system with nickel plating. | ||
| View original record | HPS. 623 Rm/Wym.9/JH.15.10.37. Wraith III Exhaust System. The lightened type exhaust system made up to the specification contained in Rm/Wym.9/MH.7.9.37. can be fitted to 24.G.VI. whilst you have the… | ||
| 08-page18 | List of tracings for Wraith III Chassis exhaust fittings. | ||
| View original record | To. RHC/SAM. c. Roy/Ma. c. RR. c. HPD. c. ST. c. BA. c. Rm/Gry. c. Wy/Aber 623 BY/CAL/EE.16.10.37. Re Wraith III Chassis - Exhaust Fittings - Section 5230. 6 sets. Please receive herewith the… | ||
| 08-page19 | List of exhaust system components with an instruction for production of 6 sets. | ||
| View original record | (2) E.W.1043 Intermediate Pipe - Front E.W.1331 Suspension Strip E.W.1332 Holding Plate - Suspension Strip E.W.1333 Bracket - Tail Pipe E.W.1334 Stirrup - Tail Pipe Suspension E.W.1335 Bracket - "… | ||
| 08-page20 | Request to lag the standard exhaust system for a Wraith car, model 24-G-VI, so it can be re-fitted. | ||
| View original record | + 623. To HPS. from Rm/Wym. Rm/Wym.4/MH.3.11.37. WRAITH CAR 24-G-VI. Will you please lag the standard exhaust system off the above car so that same can be re-fitted. Rm/Wym. | ||
| 08-page21 | Collapse of the Wraith's rubber exhaust system suspension and fitting an alternative. | ||
| View original record | To HPS. from Rm/Wym. 623 Rm/Wym.10/MH.8.11.37. WRAITH - EXHAUST SYSTEM SUSPENSIONS. Owing to the collapse of the rubber exhaust system suspension to Lec.5752 on 25-G-VI and 26-G-VI we would like you… | ||
| 08-page22 | Alternative methods of insulated supports for the Wraith III exhaust system. | ||
| View original record | WYM Is due from Gov 623 EX/MS. C. Rm. File DA.12/G.8.11.37. WRAITH 111 - INSULATED SUPPORTS FOR EXHAUST SYSTEM. Herewith please receive E.CD.200 Alternative methods of Suspension for Exhaust System.… | ||
| 08-page23 | New tail-pipe for car 24.G.Vl and a Hardy Spicer propeller shaft for car 25.O.Vl. | ||
| View original record | To HPS. from Rm/Wym. 623 Rm/Wym.4/AP.15.11.37. WRAITH CARS 24.G.Vl. and 25.O.Vl. Will you please arrange to fit a 1 3/4" diameter tail-pipe to the exhaust system of 24.G.Vl. and a Hardy Spicer… | ||
| 08-page24 | Modifications to the clamped joints for the Wraith III exhaust system. | ||
| View original record | DT/RR. c. Rm. DA.14/G.17.11.37. 623 File WYMAN WRAITH 111 - CLAMPED JOINTS FOR EXHAUST SYSTEM. Please receive herewith :- E.CD.218 Modified Front Intermediate Pipe. Wraith 111. E.CD.236 Modified Rear… | ||
| 08-page25 | Modification to holes in the chassis frame cruciform to provide clearance for exhaust pipes on the Wraith III model. | ||
| View original record | 623 DF/BC c. Rm. DA.5/G.29.11.37. WRAITH III. HOLES IN CHASSIS FRAME CRUCIFORM TO CLEAR EXHAUST PIPES. We send herewith E.CD.258 Modification to Exhaust Pipe holes in Cruciform Torque Member Side… | ||
| 08-page26 | Fitting of 'Corrojoint' washers to the exhaust systems of Wraith experimental chassis. | ||
| View original record | HPS. c. to RHC/SB. c. to By. 623 Rm/Wym.11/JH.15.12.37. Exhaust Systems. With reference to RHC/SB.1/MC.11.12.37. re the fitting of "Corrojoint" washers, we agree that they should be fitted to the 6… | ||
| 08-page27 | Issues with Phantom III exhaust manifold washers and proposing the use of 'Corrojoint' washers as a solution. | ||
| View original record | By. & Rm c. HPS. File [Signature] Wogman Should like your Comments on this Rm EXHAUST SYSTEM. The spherical Joint washers on Phantom III. exhaust manifold and front silencer give considerable trouble… | ||
| 08-page28 | Request to detail and instruct on parts for clamped joints for the Wraith III exhaust system. | ||
| View original record | S 623 To By. Rm/Wym.12/JH.15.12.37. WRAITH III CLAMPED JOINTS FOR EXHAUST SYSTEMS. Will you please detail and instruct the necessary parts to Schemes ECD.218 and ECD.236 for a revised type of clamped… | ||
| 08-page29 | List of new tracings for Wraith III Chassis exhaust fittings, to be instructed for 6 sets. | ||
| View original record | [REDACTED] 623 HY/CS2/H.29.12.37. Re Wraith III Chassis - Exhaust Fittings - Section 5230. 6 sets. Please receive herewith the following new tracings to be instructed up for 6 sets. E.W.1558 Pipe (Ex.… | ||
| 08-page30 | Updated instructions and parts for Wraith III Chassis exhaust fittings. | ||
| View original record | 623 BY/CS4/SH.31.12.37. c.c. Hm/Gry. Re Wraith III Chassis - Exhaust Fittings - Sec.S230. 6 sets. Further to our memo' BY/CS2/SH.29.12.37., please receive herewith the following new L.C.P., E.A.1578… | ||
| 08-page31 | Proposed modification to the Wraith exhaust system's rear silencer. | ||
| View original record | 623 TO By. c. to By/NS. Rm/Wym.1/JH.14.2.38. WRAITH EXHAUST SYSTEM. We are considering a modification to the rear silencer on the Wraith exhaust system and therefore suggest that production of the… | ||
| 08-page32 | Parts list regarding the deletion of sliding joints on the Wraith III chassis exhaust fittings. | ||
| View original record | 623 BY/CS/EH.18.2.38. Re Wraith III Chassis - Exhaust Fittings - Sec:5230. Deletion of Sliding Joints on Inter. Pipe between Expansion Box and Front Silencer. Below is a list of existing parts… | ||
| 08-page33 | The failure of a mild steel exhaust downtake pipe for the Wraith model, instructing a change to staybrite steel and inquiring about other suitable materials. | ||
| View original record | 623 Wymn File BY/Mtn8/N.5.3.38. Wraith - Exhaust downtake pipe. Noted Gord ? Referring to your memo Rm/Wym.6/JH.3.3.38. and Waller's report of the mild steel downtake pipe failing on 26-G-VI. we are… | ||
| 08-page34 | Whistling noise from the exhaust systems on Wraith cars 24.G.VI & 29.G.VI. | ||
| View original record | To HPS. from Rm/Wym. γ [text crossed out] 623 Rm/Wym.8/MH.18.3.38. WRAITH CARS 24.G.VI & 29.G.VI. We are having trouble with a whistle on the exhaust systems of 27.G.VI and 29.G.VI, and we suspect the… | ||
| 08-page35 | Modifications to the exhaust manifold for the Wraith III and Bentley III models. | ||
| View original record | 623. EX/NO. c. Rm. DA.8/G.18.3.38. WRAITH III & BENTLEY III. EXHAUST MANIFOLD.. Herewith please receive E.CD.542 Modified Exhaust Manifold - Wraith III. This modification has been made because of the… | ||
| 08-page36 | Requesting the manufacture of a mild steel Wraith exhaust system for special treatment by Follsain Co. | ||
| View original record | 623. To HPS. from Rm/Wym. Rm/Wym.1/AP.22.3.38 WRAITH EXHAUST SYSTEM Will you please make up in mild steel one downtake pipe, front expansion box and intermediate pipe, and hand same to Rm/Wym. These… | ||
| 08-page37 | Instruction to modify and fit an exhaust manifold for a Wraith III. | ||
| View original record | To HPS. 623. Rm/Wym.10/JH.25.3.38. WRAITH III - Exhaust Manifold. Will you please instruct for one modified exhaust manifold to ECD.522 and fit same to 28.G.VI. Rm/Wym. | ||
| 08-page38 | Buckling issue with the Wraith Exhaust System stay and suggesting a tubular replacement. | ||
| View original record | 623. To By. c. to Da. c. to Da/McStay. Rm/Wym.15/JH.28.4.38. Wraith Exhaust System. We are having trouble with EM.1656 stay in the front expansion box. This stay is "buckling" in service and allowing… | ||
| 08-page39 | Confirming the production instruction for the Wraith exhaust manifold pipe EW.1789. | ||
| View original record | RHC RHC/VS. Rm. Mr. Walker (Pattern Shop). c. BY/NS. c. BY/CS. 623 BY.31/G.3.5.38. WRAITH - EXHAUST MANIFOLDS. I wish to confirm that the information conveyed in BY/Mtn.8/N.25.4.38. is correct, in… | ||
| 08-page40 | Whistles in the Wraith exhaust system due to a shortened rear silencer. | ||
| View original record | 623 r To By. c. to By/NS. Rm/Wym.8/JH.5.5.38. Wraith Exhaust System. We have run across 2 instances of whistles in the Wraith exhaust systems i.e. 25.G.VI and WXA.2 This is caused by the lack of… | ||
| 08-page41 | Distorted intermediate exhaust pipe and an internal rattle in the rear silencer on a Wraith car. | ||
| View original record | To HPS. 623. Rm/Wym.14/JH.12.5.38. WRAITH CAR 25.G.VI. Will you please note that on the above car the intermediate exhaust pipe has distorted sufficiently to allow it to foul the hole in the cruciform… | ||
| 08-page42 | Request to fit a pair of SS Jaguar exhaust silencers to a Wraith car using a temporary manifold. | ||
| View original record | To HPS. 623. Rm/Wym.16/JH.25.5.38. WRAITH CAR 25.G.VI. Whilst you have the above car in the fitting shop will you please fit up the pair of SS. Jaguar exhaust silencers, using the temporary twin port… | ||
| 08-page43 | Modifications to the Wraith III exhaust fittings, specifically the intermediate pipe and stays. | ||
| View original record | 623 BY/NS. c. Rm c. Rm/Wym. c. Da/JD c. Da/TWD WRAITH 111 - EXHAUST FITTINGS. Please receive herewith E.CD.689 Modified Intermediate Pipe and Stays - Wraith 111 Exhaust System. The modifications shown… | ||
| 08-page44 | Analysis of Brake Horsepower (BHP) losses from the exhaust system of a Wraith III No.4 unit. | ||
| View original record | COPY FOR FILES. 623 Rm/Wym. 18.6.38. ANALYSIS OF EXHAUST SYSTEM.BHP LOSSES. Tests have been carried out on No. 30 Test bed, on Wraith III No.4 unit to determine BHP. losses on the Wraith exhaust… | ||
| 08-page45 | Table of B.HP and power loss figures for different exhaust system configurations at 3,500 R.P.M. | ||
| View original record | 3,500 R.P.M. B.H.P. LOSS OPEN EXHAUST 102.7 MANIFOLD ONLY 99.7 3.0 MANIFOLD & FRONT EXP. BOX 93.5 9.2 " " & INTER. BOX 91.7 11.0 " " & REAR SILENCER without top hats 89.9 12.8 " " & STD. REAR SILENCER… | ||
| 08-page46 | Performance table comparing Brake Horsepower (B.HP) and Loss for various exhaust system configurations at 4,000 R.P.M. | ||
| View original record | 4,000 R.P.M. B.H.P. | LOSS. OPEN EXHAUST | 98.3 MANIFOLD ONLY | 96.4 | 1.9 MANIFOLD & FRONT EXP. BOX | 91.2 | 7.1 " " & INTER BOX | 89.7 | 8.6 " " " without top hats & REAR SILENCER | 87.4 | 10.9 " "… | ||
| 08-page47 | Letter regarding the dispatch of a 25/30 HP chassis exhaust system layout and an inquiry about the progress on a Bentley silencer. | ||
| View original record | 623 EXPERIMENTAL DEPARTMENT. Rm/Wym.11/JH. 22nd. June, 1938. Burges Products Co.Ltd., Barwell, Lecester. For the attention of Mr.Philip Cotton. Dear Sirs, This is to inform you that the print of our… | ||
| 08-page48 | Confirming a material change for the Wraith exhaust system components to staybright steel. | ||
| View original record | 623 To By/NS. c. to LA. Rm/Wym.6/JH.23.6.38. WRAITH EXHAUST SYSTEM. This is to confirm that By. and Rm. have agreed that all production Wraith exhaust systems should have the downtake pipe, front… | ||
| 08-page49 | Request to repair a Wraith exhaust manifold and weld the front expansion box. | ||
| View original record | 6.28 To HPS. from Rm/Wym. Rm/Wym.1/MH.23.6.38. WRAITH EXHAUST SYSTEMS. Will you please repair the exhaust manifold that we use in conjunction with the S.S.Jaguar twin exhaust system, and weld up the… | ||
| 08-page50 | Letter regarding a missing 25/30 HP chassis exhaust lay-out print and the dispatch of a preliminary silencer, reference X.422, for a Bentley chassis. | ||
| View original record | BURGESS PRODUCTS COMPANY LTD DIRECTORS: E.J.L., P.E., & K.G. COTTON ELECTRICAL & ACOUSTICAL ENGINEERS & MANUFACTURERS BARWELL LEICESTER TELEPHONES: 141/2 EARL SHILTON TELEGRAMS: BURDUCTO, BARWELL… | ||
| 08-page51 | Letter to Burgess Products Ltd. regarding a confidential print, a previously misaddressed correspondence, and a Bentley silencer. | ||
| View original record | 623? Experimental Dept. Rm/Wym.14/MH. 24th. June 1938. Messrs.Burgess Products Ltd., Barwell, LEICESTER. For the attention of Mr.Philip Cotton. Dear Sirs, On receiving your letter this morning I made… | ||
| 08-page52 | Letter confirming the arrival of a silencer for a Bentley, which will be fitted and tested. | ||
| View original record | EXPERIMENTAL DEPARTMENT. Rm/Wym/4/JH.27.6.38. 27th June, 1938. Burges Products Co.Ltd., Barwell, Leicester. For the attention of Mr. Philip Cotton. Dear Sirs, I am pleased to inform you that the… | ||
| 08-page53 | Letter from Burgess Products requesting engine specifications for the design of an experimental exhaust system. | ||
| View original record | TELEPHONES: 141/2 EARL SHILTON TELEGRAMS: BURDUCTO, BARWELL STATION: HINCKLEY, L.M.S LONDON OFFICE: THAMES HOUSE, MILLBANK, S.W.1. TELEPHONE: VICTORIA 2981 TELEGRAMS: BURDUCTO, LONDON [Logos: SBAC,… | ||
| 08-page54 | Letter from the Experimental Department to Burgess Products Co. Ltd. detailing engine specifications. | ||
| View original record | 623? EXPERIMENTAL DEPARTMENT. Rm/Wym.14/JH. 29th June, 1938. Burgess Products Co.ltd., Barwell, Leicester. For the attention of Mr. Philip Cotton. Dear Sirs, In reply to your letter of the 27th inst.,… | ||
| 08-page55 | Request to manufacture a tail pipe and downtake pipe for a Wraith exhaust system. | ||
| View original record | 623 To HPS. Rm/Wym.11/JH.11.7.38. WRAITH EXHAUST SYSTEM. Will you please make up for us a 2.00" dia. tail pipe, and a 14 s.w.g. mild steel straight thro' downtake pipe. Both pieces to be fitted to… | ||
| 08-page56 | Required work on a Wraith car, including the exhaust, a new clutch lining, and suspension/steering adjustments. | ||
| View original record | Y 600 To HPS. From Rm/R.Bowen. Rm/R.Bowen8/MH.16.7.38. WRAITH CAR 25.G.VI. We are sending the above car into the fitting shop on Monday next for the work on the exhaust system as per Rm/Wym.… | ||
| 08-page57 | Request to fabricate and fit an exhaust system for a Wraith, chassis 26.G.VI. | ||
| View original record | 623 X To HPS. from Rm/R.Bowen. Rm/Bowen.9/MH.19.7.38. WRAITH EXHAUST SYSTEM. Will you please make up for us a 2.00" dia. straight thro' downtake pipe in 14 S.W.G. and a 1¾" dia. tail pipe in S.W.G. to… | ||
| 08-page58 | Experiments to develop a new, quieter, and more efficient exhaust system for the Wraith III car to reduce BHP loss. | ||
| View original record | b 23 To By. from Rm/Wym. c. to Hs. c. to Da. c. to Mx. c. to RHC. c. to Da/MGS. Rm/Wym.12/JH.18.6.38. WRAITH III EXHAUST SYSTEM. We have been carrying out experiments on the exhaust system of the… | ||
| 08-page59 | Table of test results showing Brake Horsepower (BHP) and power loss for various exhaust system configurations at 4,000 RPM. | ||
| View original record | 4,000 R.P.M. B.H.P. LOSS. OPEN EXHAUST. 98.3 MANIFOLD ONLY 96.4 1.9 MANIFOLD & FRONT EXP. BOX 91.2 7.1 " " & INTER BOX 89.7 8.6 " " without top hats & rear silencer. 87.4 10.9 " " top hats 45 holes "… | ||
| 08-page60 | Table comparing Brake Horsepower (B.HP) and power loss for various exhaust system configurations at 3,500 R.P.M. | ||
| View original record | 3,500 R.P.M. B.H.P. LOSS. OPEN EXHAUST. 102.7 MANIFOLD ONLY. 99.7 3.0 MANIFOLD & FRONT EXP. BOX. 93.5 9.2 " " & INTER. BOX 91.7 11.0 " " without top hats & REAR SILENCER. 89.9 12.8 COMPLETE WRAITH… | ||
| 08-page61 | Blueprint detailing the design and dimensions of a silencer. | ||
| View original record | RM. 552. SCALE 1/2 SIZE VIEW IN DIRECTION B BLANK BAFFLE A 2.500 4.50" 2.00" .500" 17.00" 2.50" 2.00" 4.50" 6.00" 5 ROWS .0935" HOLES, CENTRES .500" APART TACKED HERE SECTION OF SILENCER AT A.A. B 8… | ||
| 08-page62 | Material options and design changes for the Wraith III exhaust silencer to improve durability. | ||
| View original record | 623 DA.1/G.15.9.38. WRAITH III. EXHAUST SYSTEM. In view of the condition of the modified silencer interior parts taken from the Wraith lll car after 2,600 miles running, we are holding back the… | ||
| 08-page63 | Recommendation to produce a silencer with balance holes of at least .1875 diameter. | ||
| View original record | - 2 - DA.1/G.15.9.38. increases the cost of the parts substantially. It is therefore important that an effort should be made to produce a silencer with the balance holes at least .1875 diameter,… | ||
| 08-page64 | Whistling issue with the Wraith exhaust system silencers and a recommendation to limit stock production. | ||
| View original record | To RHC/EM. 623. also 600a Rm/Wym.8/JH.9.9.38. WRAITH EXHAUST SYSTEM. We are still having occasional rear exhaust silencers with a tendency to whistle and are endeavouring at the moment to find the… | ||
| 08-page65 | Production of the first 100 silencers for the Wraith Exhaust System and a hold on further drilling of pipes. | ||
| View original record | 623 To RHC/EM. Rm/Wym.7/JH.16.9.38. Wraith Exhaust System. Further to our memo. Rm/Wym.8/JH.9.9.38. it has now been decided by Rm. to allow the first 100 silencers to be built up to the present… | ||
| 08-page66 | Request to make a mild steel pattern for the internal pipes and baffle of the exhaust system for a Wraith Car 25.G.VI. | ||
| View original record | 623 To HPS. Rm/Wym.9/JH.20.9.38. WRAITH CAR 25.G.VI. We are trying as an experiment a cast iron assembly of the internal pipes and baffle in the centre expansion box of the exhaust system and we would… | ||
| 08-page67 | Modification to the Wraith exhaust system to eliminate a whistling noise. | ||
| View original record | 623. To BY. c. to RHC. Rm/Wym.19/JH.6.10.38. Wraith Exhaust System. Further to our memos. Rm/Wym.7/JH.16.9.38. and Rm/Wym.8/JH.9.9.38. we now find that to entirely elliminate the whistle from the… | ||
| 08-page68 | Request to make up two each of modified exhaust suspensions to schemes ECD.919 and ECD.921. | ||
| View original record | To HPS. 623 Rm/Wym.12/JH.7.10.38. Will you please make up for us as soon as possible 2 each of the modified exhaust suspensions to ECD.919 and ECD.921. One of these is intended for fitment to… | ||
| 08-page69 | Difficulties with exhaust joints on the 'Wraith' chassis, proposing the introduction of a 'Corrujoint' washer. | ||
| View original record | from RHC/SB. 623. RHC/SB.1/LS.10.10.38. WYMAN Noted "WRAITH" EXHAUST JOINTS. Much difficulty is encountered in making satisfactory joints at the Front and Rear Silencer and Swan Neck joints of the… | ||
| 08-page70 | Revised exhaust system without a front expansion box for the Wraith III model. | ||
| View original record | 623 DV/NS. [Strikethrough] C. Rm. [Strikethrough] c. Rm/Wym. [Strikethrough] c. Da/JD. [Strikethrough] DA.8/G.5.11.38. [Signature Aill] [Signature WYMAN] WRAITH 111 - REVISED EXHAUST SYSTEM WITHOUT… | ||
| 08-page71 | Using a Buick exhaust system for installing a line 8 engine in a Wraith Replacement chassis. | ||
| View original record | 6237 To Da. from Rm. c. to Da/McS. Rm.3/R.10.11.38. We attach herewith details of the Buick Exhaust System which should be used as far as possible in installing the line 8 engine in Wraith Replacement… | ||
| 08-page72 | Blueprint of an 8-cylinder Buick exhaust system with support brackets. | ||
| View original record | SCD 998 8CYL. BUICK EXHAUST SYSTEM END SUPPORT BRACKET A SUPPORT BRACKET B CANVAS & RUBBER RUBBER & CANVAS ROLLS-ROYCE LTD. PRINT ROOM 20 MAR 1939 DERBY 69" 10 1/2" 2" DIA 28" 37 1/2" 5 5/16" 26" 19"… | ||
| 08-page73 | File note regarding the B.III and W.III Exhaust Manifold. | ||
| View original record | 423 Rem. Da 3 / G . 28.11.38 B.III Exhaust Manifold (also W.III) file 423. | ||
| 08-page74 | Requesting three sets of parts for the latest Wraith exhaust system to be made and fitted to specific cars. | ||
| View original record | 623 To HPS. Rm/Wym.9/JH.9.1.39. Wraith exhaust System. We are very anxious to get the latest exhaust system to ECD.872 on production as it is a considerable saving in cost and weight and B.H.P. loss.… | ||
| 08-page75 | Requesting a fourth Wraith exhaust system with suspensions be sent to Paris. | ||
| View original record | 623 To HPT. Rm/Wym.21/JH.18.1.39. Will you please note that we require one of the latest Wraith exhaust systems complete with suspensions to be sent to Paris for the attention of Sr. We have already… | ||
| 08-page76 | The dispatch of parts for a Wraith exhaust system to the Paris depot. | ||
| View original record | 623. To D/SE, from HPS/WSC. HU/TG. G/RD. Rm/Wym. Garage HPS/WSC.5/FC.28.1.39. WRAITH EXHAUST SYSTEM. Will you please arrange to despatch to the Paris depot, addressed for the attention of SR., the… | ||
| 08-page77 | Official order for two sheets of rubber from British Tyre & Rubber Co.Ltd. | ||
| View original record | 623 To Roy. c. to G/WFH. Rm/Wym.6/JH.10.3.39. Replying to Roy/AW.1/IB.8.3.39. will you please send an official order to Messrs. British Tyre & Rubber Co.Ltd. Burton for - 2 sheets of rubber 9" x 9" x… | ||
| 08-page78 | New type of exhaust system for the Wraith model, addressing bolt stretching and silencer sagging. | ||
| View original record | 623 To By. c. to Da. c. to Mx. Rm/Wym.4/JH.21.3.39. WRAITH. New type exhaust system deleting front Expansion box. In reply to Mx.8/MG.16.3.39. we have noted the remarks re the stretching of the 1/2"… | ||
| 08-page79 | Report comparing a new engine unit's power loss due to exhaust back pressure against a conventional unit. | ||
| View original record | -2- Being a completely new design of unit, one of the first queries is whether this type of unit is more susceptible to power loss by exhaust back pressure than the conventional type of unit. (S.81)… | ||
| 08-page80 | Analysis of exhaust system tests on a B.60 unit, comparing power losses between different configurations. | ||
| View original record | 623 1044 To By. from Rm/Swdl. c. Da. c. Da/Ev. c. Rm/Wym. Rm/Swdl.2/MH.29.3.39. EXHAUST SYSTEM TESTS ON B.60 UNIT. An analysis of the Wraith type of exhaust system ECD.872/79/90 as adapted to a B.60… | ||
| 08-page81 | Performance graph analysing different exhaust system configurations on a B60 engine. | ||
| View original record | (S. W. 327) EXHAUST SYSTEM ANALYSIS ON B60 (Nº3 UNIT) WRAITH SYSTEM ECO 872/79/90 WITH BOTH 1 1/2" & 2" TAIL PIPE CONDITION OF TEST STD BY INDN SYSTEM 2-1 1/2" SU CARBS LONG DURATION INLET VALVE… | ||
| 08-page82 | Graph comparing the percentage power loss against back pressure for B60 and BV engines. | ||
| View original record | COMPARISON OF EXHAUST BACK ON B60 & BV ENGINES (S 81) TESTS TAKEN FROM CONSTANT 4000 RPM B60 - OPEN EXHAUST 139 BHP CONDITIONS AS CURVE (S) BV OPEN EXHAUST 125 BHP PERCENTAGE POWER LOSS TO OPEN… | ||
| 08-page83 | Investigation into failures of the Wraith exhaust system's corrujoints. | ||
| View original record | To: HY. Rm. DA. RBC. LH. WRAITH EXHAUST SYSTEM Corrujoints ------------------- During the running of 27.G.VI the corrujoints between Exhaust Manifold and downtake pipe blew out. As it was not certain… | ||
| 08-page84 | Modifications to the exhaust manifolds for the Wraith III and Bentley models. | ||
| View original record | C. Rm. DA.9/G.18.4.39. WRAITH III and BENTLEY. EXHAUST MANIFOLDS. Please receive herewith E.CD.1318 showing a modification to the Exhaust Manifold and Downtake flange. The modifications are :- A flat… | ||
| 08-page85 | Future changes to the Wraith exhaust system's corrujoints. | ||
| View original record | 623 Mx. c. Rm. c. Ds. (crossed out) c. BY/NS. (crossed out) c. RHO (crossed out) WYMAN WRAITH EXHAUST SYSTEM. RE: CORRUJOINTS. I have arranged that in future :- (a). We use flat joint in place of… | ||
| 08-page86 | Fitting of new bolts, distance pieces, and spherical washers to the Wraith & Bentley experimental cars' exhaust systems. | ||
| View original record | 623 + 423 To HPS. Rm/Wym.3/JH.25.4.39. WRAITH & BENTLEY EXHAUST SYSTEM. In accordance with By's instructions contained in By/CS.1/TH.21.4.39. will you please arrange for all Wraith and Bentley… | ||
| 08-page87 | Alterations to the Wraith exhaust system prints before production. | ||
| View original record | 623 To By/NS. c. to By/Cs. Rm/Wym.6/JH.26.4.39. WRAITH EXHAUST SYSTEM. In accordance with your memo. By/Cs.4/EH.18.4.39. we have checked over the prints of the Wraith exhaust system to… | ||
| 08-page88 | Requesting the instrumentation of three exhaust manifolds for Wraith & Bentley cars, involving the deletion of the spherical joint. | ||
| View original record | 623 J 823 To HPS.from Rm/Wym. Rm/Wym.6/JH.28.4.39. WRAITH & BENTLEY EXHAUST MANIFOLDS. We would like you to instrument for 3 exhaust manifolds to ECD.1318 for use on our cars. This scheme means the… | ||
| 08-page89 | Test results and instructions for a Wraith III exhaust system corrujoint, including annealing and coating procedures. | ||
| View original record | 625 To: RHO. Roy. LB. Wa. Ra/wyn Dy/CS. c. to Mx. WRAITH III EXHAUST SYSTEM CORRUJOINTS The test carried out by Mx on 27.3.VI, using an annealed corrujoint which had the grooves packed with graphite… | ||
| 08-page90 | The condition of the Wraith exhaust system and a follow-up on a potential modification. | ||
| View original record | 623 wired To: Rm/GWH (K) c. Rm c. Ry. Mx/SB.9/MG.28.7.39 WRAITH - EXHAUST SYSTEM Your Rm/GWH.31/N.27.7.39 addressed to Rm has been handed to us for attention. The position is still exactly as… | ||