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).
Listing the weights of various engine components and calculating a total weight.
| Identifier | ExFiles\Box 124\1\ scan0012 | |
| Date | 25th October 1939 guessed | |
| Engine as weighed 453lbs. this does not include Fan blades (say 2lbs) " belt ( " 1lb ) Dynamo. 22lbs - 12oz Self starter 24lbs. Rockers, shaft or pedestal 4lbs app. Manifolds & Carb (as Wth 17lbs 4oz) Engine hose brs. Oil indicator Clutch 28lbs. " case 7lbs app. Coils 3lbs - 4oz The foregoing weights add up to 562lbs 4oz. subtracting 5lbs - 8oz for the weight of the mech. pet. pump we get 556lbs - 12oz. The engine wt. g452 lbs. includes an alum sump & wheelcase. | ||