The Goshawk 11 radiator fixing bumping test, confirming the intentional flexibility of the design.
| Identifier | ExFiles\Box 77\4\ scan0178 | |
| Date | 9th December 1921 | |
| To Hs. {Lord Ernest Hives - Chair} from R. {Sir Henry Royce} c. to CJ. c. to E. {Mr Elliott - Chief Engineer} c. to Da. {Bernard Day - Chassis Design} c. to EP. {G. Eric Platford - Chief Quality Engineer} c. to Wor. {Arthur Wormald - General Works Manager} X4240 R7/M9.12.21. GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) 11. BUMPING TEST. FIXING FOR RADIATOR. X.4240 Replying to your Hs {Lord Ernest Hives - Chair} 1/LG7.12.21., I am pleased that the breakages are consistent, and am not proposing to alter the radiator fixing; it would be wrong to stiffen these, as they might break sooner, or damage the radiator. The flexibility which has cracked them was intentional; we must use plastic metal, and try if road experience demands any more expensive scheme. I am so pleased with the scheme of fixing this radiator that I am slow to abandon it. 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).