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 sheet for the 14-EX model detailing buffer, wing, and spring clearance and camber measurements.
| Identifier | ExFiles\Box 8\4\ 04-page089 | |
| Date | 4th June 1928 guessed | |
| 14-EX BUFFER CLEARANCE. [Handwritten: X-8410 X615] FRONT N.S. 1.7" REAR. N.S. 3.24" O.S. 1.9" O.S. 3.2" Rear - No passengers - N.S. 4.7" O.S. 4.7" [Handwritten: 47410] Rear - Wing clearance N.S. 6.25" O.S. 6.2" Rear - spring camber N.S. .5" Neg. O.S. .8" Neg. Front - " " N.S. .55" Neg. O.S. .55" Neg. Taken with 6 averaged sized people in car and one spare wheel at rear. Rear springs 1400 lbs. Front springs 1150 lbs. Rm.{William Robotham - Chief Engineer} | ||