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 comparing performance and detonation characteristics of different engine governor and head configurations.
| Identifier | ExFiles\Box 101\2\ scan0147 | |
| Date | 2nd November 1936 guessed | |
| STD GOVERNOR. TURB HEAD 5-90 MPH: 15.5" 5-70 MPH: 95.0" MAX SPEED: 70.5" DETONATIONS FADE OUT: 15" INTENSITY OF DETNS: MEDIUM LOUD. DETURB HEAD 5-90 MPH: 16.3" 5-70 MPH: 96.0" MAX SPEED: 76.2" DETONATIONS FADE OUT: 12" INTENSITY OF DETNS: MEDIUM LOUD. SPECIAL GOVERNOR TURB HEAD 5-90 MPH: 16.1" 5-70 MPH: 96.5" MAX SPEED: 74.7" DETONATIONS FADE OUT: 10" INTENSITY OF DETNS: MEDIUM LOUD I. WALLER. DETURB HEAD 5-90 MPH: 16.85 5-70 MPH: 95.95 MAX SPEED: 75.25" DETONATIONS FADE OUT: 10" INTENSITY OF DETNS: FAINT. SPECIAL GOVERNOR TURB HEAD 5-90 MPH: 17.9" 5-70 MPH: 97.1" MAX SPEED: 79.0" DETONATIONS FADE OUT: 13" INTENSITY OF DETNS: MEDIUM LOUD H.{Arthur M. Hanbury - Head Complaints} HAMILTON DETURB HEAD 5-90 MPH: 16.2" 5-70 MPH: 93.7" MAX SPEED: 76.25" DETONATIONS FADE OUT: 13" INTENSITY OF DETNS: MEDIUM LOUD Side notes: 13° ADV BTDC ROUGHNESS FROM 5MPH IN TOP Momentary stoppage of paper. | ||