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 showing the weights of experimental cars for the months of March and April.
| Identifier | ExFiles\Box 132\2\ scan0093 | |
| Date | 16th April 1940 | |
| To - Rm.{William Robotham - Chief Engineer} C - Bm/FD.{Frank Dodd - Bodies} Rm{William Robotham - Chief Engineer}/WYM.{G. Harold Whyman - Experimental Manager} Rm{William Robotham - Chief Engineer}/Hlm. File 1115- Rm{William Robotham - Chief Engineer}/Hlm.1/ET.16.4.40. WEIGHTS OF EXPERIMENTAL CARS FOR THE MONTHS MARCH AND APRIL. | Chassis No. | Remarks. | March. | | | April | | | |---|---|---:|---:|---:|---:|---:|---:| | | | Cwts. | Qrs. | lbs. | Cwts. | Qrs. | lbs. | | 7.B.V. | Roof Aerial fitted | 35 | 1 | 14 | 35 | 1 | 10 | | 8.B.V | - | - | - | - | 37 | 1 | 0 | | 9.B.V | Flexible tail pipe removed tube type fitted. | 35 | 3 | 0 | 35 | 2 | 20 | | 10.B.V. | Not available in April | 35 | 3 | 21 | - | - | - | | 11.B.V. | - | 37 | 1 | 22 | 37 | 1 | 7 | | 12.B.V. | - | 34 | 0 | 14 | 34 | 0 | 0 | | 14.B.V. | Not available | - | - | - | - | - | - | | 1.B.50 | Not available | - | - | - | - | - | - | | 2.B.50 | - | - | - | - | 37 | 2 | 14 | | 3.B.50 | - | - | - | - | 39 | 0 | 0 | | 4.B.50 | Ferranti Radio & Aerial and hand tools additional. | 39 | 3 | 7 | 40 | 1 | 0 | | 30.G.VII | Not available in April | 42 | 0 | 7 | - | - | - | | 33.G.VII | Clayton heater in rear in place of Marston. | 41 | 1 | 14 | 41 | 2 | 0 | | 1.R.1 | Marston heater added | 34 | 1 | 21 | 34 | 2 | 0 | | BUICK | - | 37 | 0 | 5 | 37 | 0 | 7 | Rm{William Robotham - Chief Engineer}/Hlm. | ||