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).
Test and repair report for a Buick car, including weight, gear ratios, and performance data.
| Identifier | ExFiles\Box 124\3\ scan0009 | |
| Date | 17th March 1919 | |
| X3317 17.3.19. RE "BUICK" CAR. Weight Off-side front 6 cwt. 5 lbs. Rear 7 cwt. 25½ lbs. Near-side front 5 cwt. 21 lbs. rear 7 cwt. 15½ lbs. Total Weight ---- 1 ton 5 cwt. 2 qrs. 11 lbs. = 2,867 lbs. Gear Ratios - 1st 3.3 to 1 2nd. 1.6 to 1 3rd. direct R 4.25 to 1 Back axle ratio:--- 3.75 to 1. Foot brake rod repaired. Speedometer drive repaired.. Rear wheel travels 102.5" in one revolution. Off side front lamp - front fallen out - glass broken - front lamp cover damaged - repaired. Rake of steering - Near side 15/16" Off side 1" Front Greaser Cap lost during week-end - 5.4.19. Steering Column tightened up. Side Brakes taken up. Front road springs greased R.G. 7.4.19. Claudel Carburetters fitted 10.4.19. R.{Sir Henry Royce} R.{Sir Henry Royce} Carburetter fitted 14.4.19. Consumption Test 18 M.P.G. - 20 M.P.G. 24.4.19. on London Rd. - Roads, wet and damp atmosphere. Dynamometer Test 23.4.19. Eng. Revs. Dyn. Rev. Lbs. HP. 500 88.8 60 7.44 R.{Sir Henry Royce} R.{Sir Henry Royce} Carburetter. 750 133.2 65 12.35 1000 177.6 55 13.86 Dyn. 5.625 revs. to 1250 222 55 17.45 1 Eng. rev. 1500 266.4 45 17.1 1750 310.8 45 19.99 2000 355.2 40 20.28 | ||