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).
Test report for Bleriot Phi cutouts under hot operating conditions.
| Identifier | ExFiles\Box 48\3\ Scan293 | |
| Date | 4th January 1921 | |
| X.4215 - BLERIOT PHI CUTOUTS. (HOT) £ 2 Battery disconnected. | Battery connected. Remarks | Cut-out number. | Hot operation. | Hot de-operation | Hot de-operation. | | Volts. | Amperes before. | Amperes after. | Volts. | Amperes before. | Amperes after. | Volts. | Shunt amperes. | series Reverse amps. | Remarks. Handwritten above: | | 13.2 - 14.2 | .20 | .20 | | | | | | | --- R's lighting set | 1 | 14.2 | .190 | .120 | 10.5 | .080 | .145 | 12.8 | .110 | 2.4 | As received. | 1 | 13.5 | .190 | .108 | 11.3 | .090 | .165 | 12.95 | .100 | 1.5 | With additional resist: As received. 6Ex. | 2 | 14.2 | .181 | .112 | 12.3 | .098 | .156 | 12.9 | .102 | .20 | As received. Same cut out { | 3 | Not taken hot, | | | | | | | | | 2 EX | 37884. | Not taken hot. | | | | | | | | | EP {G. Eric Platford - Chief Quality Engineer} 's test car | 34685. | | | | | | | | | | Pass for 8-EX | 38656 | 14.5 | .175 | .110 | 12.5 | .100 | .155 | 13.15 | .105 | 1.2 | After RR adjustment. | 38657. | See note on cold sheet. | | | | | | | | | Pass | 38658 | 13.6 | .175 | .110 | 12.5 | .100 | .165 | 13.2 | .108 | 1.0 | After RR. adjustment. [Bottom Left] R.R. 355A (100/7) S.H. 798 G 2547 [Bottom Center] 4.1.21. | ||