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).
Data table and graph for 'BEN SPORT' SU HV3 piston recess testing.
| Identifier | ExFiles\Box 31\5\ Scan080 | |
| Date | 15th July 1933 | |
| 100 90 80 70 60 50 RR 'BEN SPORT' SU HV3. 40 thou deep recess in piston 15/7/33 RRA RRB RRC RRD RRE 89 89 89 89 89 86 86 86 86 86 81.6 82 81.6 82 81.6 77.5 78 78 78.5 78.3 74 74.5 74.5 75 75 70.8 71.3 71.3 71.8 71.8 68.3 68.8 68.8 69.3 69.3 65.5 66 66 66.5 66.5 62.5 63.2 63.2 63.8 63.8 60 60.5 60.5 61 61 57.5 58 58 58.6 58.6 54.7 55.2 55.2 56 56 52 52.5 52.5 53.2 53.2 RRA RRB RRC RRD RRE 2 off each RRB RRC RRD RRE A von der Becke | ||