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).
Experimental parts fitted to the 'A' Engine.
| Identifier | ExFiles\Box 37\4\ scan 152 | |
| Date | 14th May 1917 | |
| R.R. A 285 (400 T) (S C. 536. 15 2-16) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 1446. X. 3046 Mr. Clark 14.5.17. EXPERIMENTAL "A" ENGINE The above Engine has been fitted with the following experimental parts :- X.3045 Propeller Shaft (Low Stanton Figure) Test Piece broke at 400 Blows. -------------- X.3046 Planet Pinions recessed on Bolt Holes. -------------- X.3025 Propeller hub countersunk for Bolt G.5694. -------------- (Sgd) R.H. Coverley. | ||