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).
Braking test results, dynamo output data, and an analysis of Engine Unit C.XIII.
| Identifier | ExFiles\Box 179b\4\ img017 | |
| Date | 9th April 1933 guessed | |
| -4- The braking tests with the brakes hot are as follows: Stopping distance in feet to rest. M.P.H. FEET. 30 36 40 63 50 102 60 160 70 246 80 357 -------------------- DYNAMO OUTPUT. M.P.H. REVS. LAMPS ON H.{Arthur M. Hanbury - Head Complaints} S. T. S. T. COIL ONLY. 10 500 -16 -4 -2 16 750 +5 5 20 900 -4 10 4 30 1350 -3 11 8 40 1750 -4 10 9 50 2250 -5 10 8 60 2700 -5 9 8 70 3150 -6 8 8 80 3600 -8 8 7 Dynamo cuts in at 16 m.p.h. 60. Watt headlamp 4. Watt side and tail used. -------------------- ENGINE UNIT C.XIII The engine was dismantled when it arrived here after Mr. Bentley's trip owing to the failure of the pistons. The power and acceleration has remained good during the mileage run here. The engine was free from any marked periods up to a mileage of 9000. A period then developed at 2350 revs. It gradually became very sharp and distinct | ||