The failure and investigation of a Goshawk-11 rear axle breakage.
| Identifier | ExFiles\Box 49\2\ Scan075 | |
| Date | 24th April 1922 | |
| Hy {Tom Haldenby - Plant Engineer} /Hs. {Lord Ernest Hives - Chair} from EP. {G. Eric Platford - Chief Quality Engineer} V4286 EP {G. Eric Platford - Chief Quality Engineer} 3/LG24.4.22. X4286 (crossed out) GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11 REAR AXLE BREAKAGE, X4086 The rear axle on 1-Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11 has failed and we are now dismantling the axle for investigation and will report later. The driving shaft has broken where the serrations and driving dogs! blends into the shaft. The shaft appears to have twisted round a considerable amount before breaking and has the appearance of being made of soft material. We propose having this analysed before officially reporting on this breakage, but I thought it would be as well for you to know this trouble so that you might suspect same on 5/6-Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine))-11 and have the end of the shaft examined by taking off the hubs. The remaining shaft has also twisted locally at the same place i.e., between the inside end of the hub and the driving dog and the end of the serrations where it blends into the driving shaft. EP. {G. Eric Platford - Chief Quality Engineer} [Reversed and upside-down text stamp: MADE AT CHORLEY] | ||
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).