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).
Graph from shock damper tests showing the relation between external pressure and ball pin load.
| Identifier | ExFiles\Box 151\2\ scan0144 | |
| Date | 11th January 1934 | |
| SHOCK DAMPER TESTS 11-1-34 R.R.S. 469. GOVERNOR CONTROLLED TYPE. 40/50 HP REAR. LEVER 12.635" RAD. RELATION BETWEEN EXTERNAL PRESSURE & BALL PIN LOAD. LOW PRESSURE. EXTERNAL PRESSURE LB/SQ. IN. BALL PIN LOAD - LB PRODUCTION REAR 'O {Mr Oldham} /O' HAT 27 EX REAR 'O.S' HAT PRODUCTION 27 EX 1.1-30 LB Nº1 Nº2 2 SHEETS - SHEET 1. | ||