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).
The testing of a Bleriot Phi cutout and its potential use with a Goshawk chassis.
| Identifier | ExFiles\Box 48\3\ Scan274 | |
| Date | 6th October 1921 | |
| R.R. 224A (100 T) (S.H. 726. 10-12-20) G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 2947 Contd. -2- EFC {E. Fowler Clarke - Electrical Engineer} 2/T6.10.21. satisfactorily; the remaining three of these four are available for other purposes. From the tests we have made, therefore, it is clear that the Bleriot Phi cutout, if correctly set, is a good and reliable cutout. It is understood from Mr.Hives that you have in mind the possibility of using this cutout on the GoshawkAero EngineCodename for 20HP Car / Aero Engine after KestrelAero Engine chassis. It will no doubt be possible to get the makers to set these more exactly in accordance with our specification before delivering to us - in any case we must not have the feature of the chattering round about the cutting-in point. At the present moment the Rotax A.T.4 dynamo is being fitted to the Experimental GoshawkAero EngineCodename for 20HP Car / Aero Engine after KestrelAero Engine II chassis and the Bleriot Phi cutout will be fitted to operate in conjunction therewith. EFC. {E. Fowler Clarke - Electrical Engineer} | ||