From EFC to RHC on the subject of fan tests, detailing completed and remaining work on various fan models.
| Identifier | ExFiles\Box 75\3\ scan0013 | |
| Date | 29th October 1924 | |
| To RHC. {R. H. Coverley - Production Engineer} from EFC. {E. Fowler Clarke - Electrical Engineer} X.1017. RE FAN TESTS. The following fan tests have now been completed:- Power to drive tests taken in our laboratory of:- (1) Standard 40/50 6-bladed fan. (2) Ditto, with three blades removed. Fan speed/thrust tests taken in the shop on:- (1) Standard 40/50 6-bladed fan. (2) Ditto, with three blades removed. (3) EAC. 4-bladed fan. (4) Hispano fan. (5) High speed fan - six blades. There therefore remain to be done on the thrust tests:- (6) High speed fan with three blades removed. (7) Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) fan. and on the power tests in our laboratory:- (3) EAC. 4-bladed fan. (4) Hispano fan. (5) High speed fan - six blades. (6) High speed fan with three blades removed. (7) Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) fan. At this point we shall be glad if you will have the Hispano fan removed and the high speed 40/50 fan with three blades removed replaced, and after my man informs you that the test on that arrangement is completed will you kindly have the Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) fan fitted. This will then complete the thrust tests to be made in the shop. Subsequently we shall ask you again to fit up so that we can take power tests of these other five fans, in here EFC. {E. Fowler Clarke - Electrical Engineer} | ||
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).