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 instrument on a Goshawk engine test bed.
| Identifier | ExFiles\Box 48\3\ Scan281 | |
| Date | 12th October 1921 | |
| X.4215. 12.10.21. X.4215 - BLERIOT PHI CUTOUT. Instrument No.38660 has been handed over for test in conjunction with the Rotax dynamo on the GoshawkAero EngineCodename for 20HP Car / Aero Engine after KestrelAero Engine engine on the test bed. EFC. {E. Fowler Clarke - Electrical Engineer} | ||