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).
Cylinder and piston clearance measurements for a Renault engine.
| Identifier | ExFiles\Box 23\4\ Scan038 | |
| Date | 5th April 1911 | |
| R.R. 148 (20 H) (W 279. 24.3.11) G 1486. X1013 Cylinder & Piston clearance. Renault. No. Mouth. Centre. Crown. Average. 103. 3.151 3.151 3.1505 3.151 Piston. 1st Bar. 2nd Bar. 3rd Bar. 4th Bar. Mouth. 3.1445 3.1455 3.146 3.146 3.145 Report file R.{Sir Henry Royce} 5-4-11 | ||