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).
Table detailing camshafts fitted to specific engine and chassis units, including valve timing data.
| Identifier | ExFiles\Box 124\2\ scan0008 | |
| Date | 9th December 1939 guessed | |
| Camshafts fitted to engine Units which are in Chassis. Camshaft. Chassis No. Engine No. Valve Timing. EB.4512. 11.B.V. B.80.No.3. I.O 11.8°AT. EO.40.6° BB. I.C 32.4° AB. EC. 1.0° BT.{Capt. J. S. Burt - Engineer} EB.4512. 30.G.VII. B.80.No.5 I.O 11.4° AT. EO.40.3 BB. I.C 31.2° AB. EC. .76° BT.{Capt. J. S. Burt - Engineer} EB.4512. 33.G.VII. B.80.No.7 I.O 10.6° AT. EO.41.8 BB. I.C 28.8 AB. EC. 2.28 BT.{Capt. J. S. Burt - Engineer} Ex.33975. 4.B.50. B.80.No.1 I.O.11.4° AT. EO.45.6° BB. I.C.31.2°AB. EC. 9.13°BT.{Capt. J. S. Burt - Engineer} EB.4105. B.80.No.2 Test Bed. EB.4482. 3.B.50. B.60.No4 I.O.10°AT. EO.41°BB. I.C.30°AB. EC. 2.5°BT.{Capt. J. S. Burt - Engineer} (The only B60 Fitted into a chassis) | ||