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 document for '21-G-IV' detailing 15 modifications and components.
| Identifier | ExFiles\Box 5a\4\ 04-page154 | |
| Date | 22th October 1934 | |
| x5840 Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux}10/KW.22.10.34. 21-G-IV Specification. (1) Clutch to Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}14/KW.21.9.34. (2) Engine mounting as instructed for production for the 21st chassis in F.2 series. (3) Shortened link between pedal shaft and engine to N.Sch.4181. Forward diagonal stay from the shaft to the frame should be deleted. (4) The link on the front of the engine on the offside only, to LEC.3912, but with hardened pins. (5) Propellor shaft damper to N.Sch.4122, as the modification to N.Sch.3911 has not yet been tested. (6) Strengthened type bracket for large carburetter, LEC.4098. (7) Centrally mounted Harrison radiator. (8) Exhaust manifold LEC.4099. (9) Servo GL.{G. Linnett}713, Mintex LAM linings. (10) Air silencer, LEC.4043. (11) Flexible pipe from pump to carburetter. (12) Rocker cover spring rings on rocker cover nuts, LEC.4091. (13) Modified drain pipe to Radiator, LEC.4049. (14) Gearbox synchromesh centre rattle device. (15) SpectreCodename for Phantom III petrol tap. | ||