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 comparing the performance of three different Peregrine engine cylinder head configurations.
| Identifier | ExFiles\Box 179b\2\ img116 | |
| Date | 4th October 1932 guessed | |
| GENERAL DEVELOPMENT PEREGRINE COMPARISON OF A.{Mr Adams} TURBULENT HEAD SHORT LeC 3222 FORMS TO E.100861 107° B. STANDARD HEAD LONG T FORMS TO E.100362/3 C. ORIGINAL PEREGRINE M.E. 1 5/8" S.U. CARB: 6.25 C/R (ALL CURVES) OPEN EXHAUST. B.H.P. R.P.M. Graph Data: Curve A: Turbulent Head Short Curve B: Standard Head Long T Curve C: Original Peregrine M.E. Valve Timing Diagram: 107°, EX 34, IN 42, .020, 8.5 | ||