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 a K.IV supercharger on Kestrel 15 and 27 engines.
| Identifier | ExFiles\Box 179b\2\ img075 | |
| Date | 9th November 1932 guessed | |
| CURVE 321F K.IV. SUPERCHARGER. COMPARATIVE POWER CURVES TAKEN WITH THIS UNIT ON A - Kes 15 HAVING A STANDARD CRANKSHAFT 5.5" STR. B - Kes 27 HAVING A SHORT THROW CRANKSHAFT 5.35 STR. CAMSHAFTS - E32801 (STd TYPE) PLAIN COUPLING SLEEVE DTD. 134 + 5 ccs. TEL/GALL LODGE X170 PLUGS CORR'd BRAKE HORSE POWER ENGINE R.P.M. K15 WITH KIV S/C (5.50" STROKE) K27 WITH KIV S/C (5.35" STROKE) SP.{Mr Spinney} CAT. TEST 15932 | ||