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).
Performance test data from Brooklands Track for a Bensport Chassis F.B III, showing acceleration and speed tests.
| Identifier | ExFiles\Box 155\1\ scan0058 | |
| Date | 2nd February 1933 | |
| BENSPORT CHASSIS F.B III BROOKLANDS TRACK 2.2.33 10/41 REAR AXLE 18x5.50 TYRES CAR WEIGHT COMPLETE - 30 1/2 CWT. ACCELERATION COMPLETE CAR ROAD SPEED (M.P.H) TIME (SECS) TOP GEAR 3RD GEAR USING GEARS N.B. ONE TEST ONLY WAS MADE IN EACH CASE BEST LAP SPEEDS. (M.P.H.) 1) 87.07 COMPLETE CAR CUT OUT CLOSED. 2) 88.46 COMPLETE CAR CUT OUT OPEN. 3) 90.22 FRONT WINGS OFF. CUT OUT CLOSED. BEST 1/2 MILE SPEEDS. (M.P.H.) 1) 86.6 COMPLETE CAR. CUT OUT CLOSED. 2) 90.00 COMPLETE CAR. CUT OUT OPEN. 3) 91.84 FRONT WINGS OFF. CUT OUT CLOSED. | ||