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).
Two graphs illustrating oil pressure drop and recovery during braking and acceleration through gears.
| Identifier | ExFiles\Box 83\1\ scan0430 | |
| Date | 23th March 1937 | |
| Oil Pressure Drop and Recovery Top Graph: Y-Axis: Oil Pressure lbs □" @ 100°C. X-Axis: 4 Secs, 8, 12, 16, 20, 24, 28, 32 Maximum Braking Acceleration Through Gears. to 20 MPH Plot Lines: Direct Pipe, Filter without Element, Filter with Element. Data Points: (80), (20), (40) 4000 RPM 2nd Gear, (60), (75) 4000 RPM 3rd Gear. Bottom Graph: Y-Axis: Oil Pressure lbs □" @ 100°C. X-Axis: 4 Secs, 8, 12, 16, 20, 24, 28 Maximum Braking Acceleration Through Gears. to 30 MPH Plot Lines: Filter without Element and Direct Pipe, Filter with Element. Data Points: (80), (30), (40) 4000 RPM 2nd Gear, (60), (75) 4000 RPM 3rd Gear. Footer Note: Figures Thus (60) Show approximate speed in M.P.H. | ||