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).
Power curves for a unit after a 10,000 mile test, comparing five different exhaust system configurations.
| Identifier | ExFiles\Box 5a\5\ 05-page177 | |
| Date | 25th October 1931 | |
| POWER CURVES UNIT FOR 10,000 MILES TEST 18.G.IV C.XI C/R 5.7 CAMSHAFT Sch: 1542/3 STANDARD CARB 15% LARGER ① OPEN EXHAUST ② COMPLETE P.II. SHORT TYPE Ex. SYSTEM ③ N.Sch 3285/6/7 WITH FISH TAIL. EXIT OPENED TO P.II. SIZE ④ AS 3 FISHTAIL REMOVED ⑤ EXISTING STANDARD UNIT OPEN EXHAUST VALVES BOUNCE 3875 R.P.M. B.H.P. R.P.M B.M.E.P. LBS/SQ INDUCTION DEPN. INS. HG. | ||