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 single belt B.60 engine in a 3.B.50 chassis, specifically the fan and top water connection.
| Identifier | ExFiles\Box 124\1\ scan0189 | |
| Date | 5th April 1939 | |
| 104H Rm.{William Robotham - Chief Engineer} Da.{Bernard Day - Chassis Design} 6/G.5-4-39. Single Belt B.60 Engine in Chassis 3.B.50. Fan and Top Water Connection File 800b. | ||