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).
The cost and supply of magnesium metal bottom half crankcase castings for the Spectre Chassis.
| Identifier | ExFiles\Box 132\3\ scan0036 | |
| Date | 15th August 1935 | |
| Hs.{Lord Ernest Hives - Chair} By X376 ROY{Sir Henry Royce}/MS4/P.15.8.35. SPECTRECodename for Phantom III CHASSIS. With reference to the supply of Bottom Half Crankcase Castings made in Magnesium Metal. Kindly note, the cost of these castings will be £7.10. 0. each. This works out at 7/9d per lb., the approximate weight being 19-1/3 lbs. per casting. The R.R. Castings were approx. 30 1/2 lbs. each - approx. foundry cost £5.10. 0. per casting. In the circumstances please advise if we are justified in ordering magnesium castings. Roy.{Sir Henry Royce} [signature] | ||