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).
Specification for a front brake pull off spring for the Phantom III model.
| Identifier | ExFiles\Box 92\4\ scan0103 | |
| Date | 7th November 1935 guessed | |
| FRONT BRAKE PULL OFF SPRING - PHANTOM 3. To replace spring G.82503. Wire dia. 0.096". Mean dia. of coils. 0.554". No.of parallel coils. 32. No.of taper coils. 3 each end. Normal load. 44 lbs. Normal stress. 70,000 lbs/in2. Normal deflection. 2.138". | ||