Specification revision for Engine Unit No. 25 (Chassis 24-EX), detailing crankshaft modifications.
| Identifier | ExFiles\Box 169\1\ img101 | |
| Date | 10th December 1930 | |
| To Hs. {Lord Ernest Hives - Chair} from RHC {R. H. Coverley - Production Engineer} /WSC. {W. S. Cassel} RHC {R. H. Coverley - Production Engineer} /WSC {W. S. Cassel} 1/LS.10.12.30. ENGINE UNIT No.25 (CHASSIS 24-EX). Specification of the above Unit issued in RHC {R. H. Coverley - Production Engineer} /WSC {W. S. Cassel} 1/MS21.6.30. is revised as follows:- PASSED TO TEST 4.12.30. Previous Specification. | Revised Specification. ---|--- Crankshaft to LOP. E.79739. | Crankshaft to LHP.LoC.2616. Crankshaft E.79738 Removed. | Crankshaft E.78456 Modified to Drg: E.78648 & EX.3611 to suit Balance-Weights EX.3609 using Studs EX.3610 and Oil Caps E.78441. Front-End of Crankshaft to Drg: E.79738 to suit Low-Inertia Spring Drive. | ||
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).