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).
Graph showing load versus deflection for the Wraith front wheel.
| Identifier | ExFiles\Box 154a\4\ scan0051 | |
| Date | 7th January 1938 guessed | |
| WRAITH FRONT WHEEL DEFLECTION INITIAL DEFLECTION 7.4" BUMP BUFFER RATING = 1750 LBS/IN REBOUND BUFFER RATING = 650 LBS/IN LOAD LBS DEFLECTION INCHES | ||