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).
Status report on B.60 series engine units, detailing their components, development stage and chassis fitment.
| Identifier | ExFiles\Box 161a\3\ scan0141 | |
| Date | 27th April 1939 | |
| -6- HPS{Horace Percy Smith - Experimental Factory Mgr}/WSC.{W. S. Cassel}10/BA.27.4.39. B.60.No.1. On test for general development fitted with Intermediate stage of Cylinder Head EX.S.1383 . B.60.No.2. Fitted in 29.G.VI. B.60.No.3. On test for Development running. B.60.No.4. Now fitted in 3.B.50. Chassis. B.60.No.5. This is a new unit, for which specification has been issued in HPS{Horace Percy Smith - Experimental Factory Mgr}/WSC.{W. S. Cassel}1/Ba. 5.4.39, it should be noted that the pattern of the B.80. top half will require to be modified to produce new units. Below is a brief summary of the main items. (a) EB.4669 R.H.Crankcase and Cylinder. (b) EB.4695 Crankshaft. (c) Wraith III type Crankshaft Damper to SCD.1043. (d) EB.3916 Pistons - Aerolite. (e) EB.4706 Cylinder Head to PD.768. (f) Ex.33420 Solid stem exhaust valves. (g) FB.4882 Camshaft. (h) GCD.1075 Dynamo having greater flexibility. WSC.{W. S. Cassel} was requested to see W.Butterworth to urge the Crankshaft forgings all possible. B.60.No.6. Specification issued for this is similar to B.60.No.5 with the following exceptions. (a) EW.2115 Pistons - Aerolite. (b) Ex.33974 Camshaft. continued. | ||