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).
Typed document detailing the weights of the B.60 engine and comparing them to the Wraith engine.
Identifier | ExFiles\Box 10\5\ 05-page111 | |
Date | 14th October 1938 | |
COPY FOR FILES. To Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Cb. 658 also 1044 Typed 14.10.38. B.60 ENGINE WEIGHTS. Engine weights as illustrated in attached photographs .............. 453 lbs. This does not include:- Fan blades....................approx 1 lb. 8 ozs. Fan belts.......................... 1 lb. Dynamo........................... 22 lbs. 12 ozs. Self-Starter....................... 24 lbs. Rocker Shaft and Pedestal.......... approx 4 lbs. Manifolds and Carburetter as Wraith.. 17 lbs. 4 ozs. Clutch........................... 28 lbs. Clutch case...................approx 7 lbs. Coils............................ 3 lbs. 4 ozs. Adding these weights to those of the } 561 lbs. 12ozs. engine one gets } The weight of a mech. petrol pump is .... 5 lb. 8 ozs. (approx.) Parallel weights for the Wraith are as follows:- Engine in same condition as B.60 engine illustrated...................... 470 lbs. Fan blades........................... 1 lb. 8 ozs. Fan belt............................. 8 ozs. Dynamo........................... 23lbs. 14 ozs. Self-starter......................... 22lbs. 9 ozs. Rockers, shaft and pedestals......... 6lbs. 6ozs. Manifolds and Carburetter.......... 17lbs. 4 ozs. Clutch........................... 27lbs. 2 ozs. Clutch Case.......................... 8lbs. 15 ozs. Coils............................ 3lbs. 9 ozs. When these weights are added to the } 581lbs. 11 1/2ozs. previous engine weight one gets } It must be borne in mind that the B.60 engine incorporates a mechanical petrol pump. Rm{William Robotham - Chief Engineer}/Cr.{Mr Cra???ster / Mr Chichester} | ||