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).
List of notes and specifications for preparations for the Ulster Grand Prix.
| Identifier | ExFiles\Box 90a\2\ Scan009 | |
| Date | 14th May 1934 | |
| 14th May, 1934. Notes on the Ulster Grand Prix: (1) Approximate engine Horse Power available - 130. 7.4 compression ratio. 1.5 diameter inlet valves. Aerolite pistons. Standard camshaft. (2) Petrol system will require attention to avoid vapour lock. (3) Test should be carried out to ascertain how much oil temperature can be lowered by keeping the radiator shutters fully open and deleting the undershields. (4) The qualifying speed for the car is 13.66 miles in 11.29 minutes, or an average speed of 72.6 M.P.H. (5) Alteration to the brake leverage will be required to prevent the front brake levers coming on their stops. (6) Front springs should be modified to improve the axle control. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||