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).
Comparative power curves for the XF.12 engine with old, new, and small diffuser carburettors.
| Identifier | ExFiles\Box 36\2\ scan 114 | |
| Date | 27th April 1927 | |
| COMPARATIVE POWER CURVES (X F.12) WITH A OLD (Lec. 2322 - 6 - 2352) CARBURETTORS B NEW (Lec. 2373 - 2382/5/6) CARBURETTORS C " CARBS: WITH SMALL "DIFFUSERS" (No 22 LES) Top Graph: IND: PIPE DEPRESSN "HG Y-Axis: 1.0", 1.5", 2.0" X-Axis R.{Sir Henry Royce} P. M.{Mr Moon / Mr Moore}: 1800, 1900, 2000, 2100, 2200, 2300 Curves: A, B, C Bottom Graph: C/C B.H.P. Y-Axis: 400, 420, 440, 460, 480, 500 X-Axis R.{Sir Henry Royce} P. M.{Mr Moon / Mr Moore}: 1800, 1900, 2000, 2100, 2200, 2300 Curves: A, B, C | ||