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).
Comparison tests of vehicles 3.B.IV and 6.B.IV in France.
| Identifier | ExFiles\Box 83\1\ scan0395 | |
| Date | 9th March 1937 | |
| 2009 Sg.{Arthur F. Sidgreaves - MD} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls}1/R.9.3.37. 6.B.IV. 3.B.IV. went out to France on the 23rd February with the fixed grille radiator shutters and did comparison tests on Montlhery track with 6.B.IV. Owing to bad weather these were not completed for just over a week. After these tests 6.B.IV went to Chateauroux for the connecting rods to be changed, and then started running mileage on the 3rd March. We attach to this memo three Daily Report Sheets which we have received from Hancock this morning. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||