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).
Performance comparison graph between Aerolite and E.B. 1299 pistons.
| Identifier | ExFiles\Box 131\1\ scan0132 | |
| Date | 2nd December 1934 | |
| B.V. 19 COMPARISON BETWEEN AEROLITE & E.B. 1299 PISTONS. CYLINDER HEAD WITH LARGE INLET (1.500 DIA) VALVE & SMALL EXHAUST (1.200 DIA.) VALVE COMPRESSION RATIO 6.9:1 OPEN EXHAUST UNIT Nọ B.6 (B.H.P.) R.P.M. B.M.E.P. (LB/SQ") AEROLITE PISTONS E.B. 1299 PISTONS VALVE TIMING (.020 CLEARANCE) T.D.C. EXH. INL. 3.6° 5.4° 51.0° 49.5° R.M.W. 2/12/34 | ||