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).
Graph showing the results of Phantom fan tests conducted at Brooklands Track.
| Identifier | ExFiles\Box 123\3\ scan0188 | |
| Date | 26th June 1934 | |
| PHANTOM FAN TESTS AT BROOKLANDS TRACK JUNE 26. 1934 AIR TEMP. TO BOIL 65 60 55 50 45 40 35 AMERICAN V/P FAN STAGGERED LEG 3766 FAN STANDARD PI FAN NO FAN 30 FULL THROTTLE M.P.H. 60 CRUISING OLD STANDARD TUBE RADIATOR NO FRONT UNSHIELD C.S.S. 28/6/34 | ||