From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
The performance and condition of various chassis components after road testing.
| Identifier | ExFiles\Box 83\1\ scan0252 | |
| Date | 12th August 1936 | |
| ( 13 ) GOVERNOR CONTROL FOR DAMPERS. LOP FB.1341. Existing, complete to above LOP - Standard Production The damper unit pressure at 10 MPH. was 0 to 17.1/2 lbs/sq." and gave a useful range of control. The coiled copper pipe (Ex.23746/7) to the chassis fitted at 5549 miles, showed no weaknesses during 11.381 miles running. The copper pipe removed were also in good condition. Handwritten note: Has this been Standardised? PROPELLOR SHAFT. LOP GB.702 N.S.39II Lec.506I. Complete to above LOP & Schemes incorporating:- N.S.46IO Extended Pinion Shaft. I - GB.2038 Propellor Shaft. Front end of Propellor Shaft fitted ex.B.23.AE.Chassis. The shaft was free from vibration. The sliding joint remained free throughout the mileage, but the needle roller universal joints were lumpy from the start. This does not seem to matter. The shaft hits the 3rd crossmember on full bump. REAR AXLE. LOP GB.619 - 6.B.IV. 2-10 x 41 ratio. New, complete to above LOP incorporating:- N.S.4610 Extended Pinion Shaft. I-GB.2042 Oil Thrower I-GB.2055 Centre Casing. I-GB.2074 Bevel Pinion } R.R. Product 10 x 41 ratio. I-GB. 186 Bevel Wheel The axle was quiet and free from oil leaks and showed no weaknesses. Lubrication of the extended pinion shaft was adequate. A slight oil weep from the pinion housing appeared at 12.800 miles and continued for the rest of the running. Handwritten note: Gry.{Shadwell Grylls} Do we want to standardise this? What weight does it add? REAR BRAKES. LOP GB.854 & HUBS LOP GB.2280 FRONT BRAKES. LOP GB.1236 & HUBS LOP GB.1237 FRONT AXLE. LOP GB.1235. New, complete to above LOP incorporating:- N.S.4796 Alum Brake drums at the rear RM.{William Robotham - Chief Engineer}55 Front alum.composite brake drums 2 - Ex.21590 Brake Drums. RM.{William Robotham - Chief Engineer}106 Anti-judder Scheme. New Front Brake Plates with anti-judder weights To.RHC{R. H. Coverley - Production Engineer}/WSC.{W. S. Cassel}6/BA.12.8.36. Fitted at 5.243 Miles. Squeaks occurred every day on first few applications after standing all night. The pilot shoes were found to be set solid, setting them correctly overcame this trouble. To begin with, excessive pedal pressure was required for good braking from high speeds, but this improved with running and was subsequently attributed to the servo. Handwritten note: Now are going Shoes on to BTV without cutting shoes. | ||