Maximum speed test results for vehicle 19-EX, detailing test conditions, setup, and performance data.
| Identifier | ExFiles\Box 11\4\ 04-page112 | |
| Date | 19th July 1932 | |
| To Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} From G.W.H. X7941 Hotel de France, Chateauroux(French test region), FRANCE. 19.7.32. MAXIMUM SPEED TEST. 19-EX. Conditions same as previous tests. Practically no wind was blowing on this test. Camshaft E.82446 Valve Timing. as first brought out. I.O. 5.58° P.T.D.C. I.C. 54.75° P.B.D.C. E.O. 11.16° P.B.D.C. E.C. 46.5° B.B.D.C. One driver & passenger. Axle Ratio 12 X 41. Wheels 19". Ballast in rear 110 lbs. Ignition. Magneto 7° B.T.D.C. Battery 12° B.T.D.C. Total Times for flying half mile, In & Out. SECS. AVERAGE M.P.H. Carb. Needle. 43.6 82.56 Cut-out closed 90° needle 42.2 85.31 Cut-out open 90° needle 42.0 85.72 Cut-out open 90° needle 41.6 86.54 Cut-out open 85° needle 42.0 85.72 Cut-out open 85° needle One direction only:- 20.6 87.38 Cut-out open 85° needle [Signature] G.W.H. | ||
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).