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).
Goshawk II vehicle failures, focusing on front springs, brakes, and excessive oil consumption.
| Identifier | ExFiles\Box 46\2\ Scan302 | |
| Date | 31th May 1922 | |
| X4086 To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} C. CJ. E.{Mr Elliott - Chief Engineer} Da.{Bernard Day - Chassis Design} C. to E.{Mr Elliott - Chief Engineer} C. EP.{G. Eric Platford - Chief Quality Engineer} C. EY. C. Wor.{Arthur Wormald - General Works Manager} RE GOSHAWK II. Please find attached copy of Hy{Tom Haldenby - Plant Engineer}'s report dated May 29th. The total number of failures of front springs up to date in France is :- 5 Gos.II - 2 top leaves. 6 Gos.II - 2 top leaves. The last top leaf which broke on 6 Gos. broke at the rear end of the front spring, close to the clips. Brakes on 6 Gos.II are identical with those which were on 5 Gos.II, and both cars were fitted with the same Ferodo material. The only reason one can see why 6 Gos. brakes have stood up so much better than 5 Gos. with both cars running under exactly similar conditions, is that there has been very little wet weather while 6 Gos. has been running and therefore no water or mud has got into the brakes, as happened on 5 Gos.II. It would therefore appear that with the modifications to ensure that water and mud cannot get inside the brakes, we shall have no trouble from excessive wear. We can appreciate the excessive oil consumption on 7-Gos. because 2 G.II car which we have at the Works does the same thing. Although it does not oil up the plugs the oil consumption is about 600 miles to the gallon or at least twice more than it should be. One disadvantage in the heavy oil consumption is that, owing to the excessive amount of carbon formed, the engines detonate readily. Hs.{Lord Ernest Hives - Chair} | ||