The performance of the Goshawk III gearbox and clutch.
| Identifier | WestWitteringFiles\N\2July1925-September1925\ Scan56 | |
| Date | 8th August 1925 | |
| TO HS. {Lord Ernest Hives - Chair} FROM R. {Sir Henry Royce} OJ. DY. {F R Danby} GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) III. GEARBOX. X5310 With the exception of servo jaggers this gearbox and clutch has functioned extremely well, the handling of the gears, and especially the sliding reverse, is quite nice, and well up to RR. standard. R. {Sir Henry Royce} | ||
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).