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 detailing engine data, including firing order, dimensions, and component weights.
| Identifier | ExFiles\Box 115\2\ scan0508 | |
| Date | 16th November 1939 | |
| -3- Rm{William Robotham - Chief Engineer}/TAS.{T. Allan Swinden}8/JH.16.11.39. Engine data. Firing order A 1 4 2 6 3 5 B 2 6 3 5 1 4 Bore 3½" Stroke 4½" Conn. rod / Crank = 4.08 Weight of piston, rings and gudgeon pin. 1.61 lbs. Connecting rod weight. Forked rod. Plain rod. Complete 2.8 lbs. 2.02 lbs. Little end 0.8 0.75 lbs. Big end 2.0 1.27 " On the P.III crankshaft all journall diameters are 2.75. Length of end bearings 2.0 " " intermediate bearings 1.25 " " centre bearing 2.0 | ||