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).
2-hour Acceptance Test for the Aeronautical Inspection Directorate (A.I.D.).
| Identifier | ExFiles\Box 36\2\ scan 098 | |
| Date | 1st December 1926 | |
| R.R. 493 (40 H) (SL 42 12-7-23). J.H.,D.{John DeLooze - Company Secretary} X2934 EXPERIMENTAL REPORT. 1.12.26 COPIES TO: (R.CJ.) (BJ) WOR{Arthur Wormald - General Works Manager} By.{R.W. Bailey - Chief Engineer} (E) Da.{Bernard Day - Chassis Design} EP.{G. Eric Platford - Chief Quality Engineer} PN.{Mr Northey} OY. (RG{Mr Rowledge}) Expl. No. X2917A (X2904 crossed out) REF. Hs{Lord Ernest Hives - Chair}/VH/LG1.12.26 OBJECT OF TEST. Acceptance Test for the A.I.D. (2 hrs.) TESTER. V.{VIENNA} Halliwell. CONDITIONS. F.X.2. 1st. F.X. rebuilt as a wet liner engine - scheme A, Lec.2301. Strengthened tulip valves E.26651. Y. alloy pistons with scraper rings and skirts of decreased length. 20% Benzol. P.2. lubricating oil. SUMMARY OF TEST. After running in for a period of 3 hrs., this engine was opened up to full throttle and a power curve taken :- R.P.M. 2500 2400 2300 2100 2000 C/B.HP. 538 536 528 486 463 At the conclusion of the power curve an inspection of the cyls. revealed a slight leak into A.6. cyl. A.5. and B.3. were both weeping - this is being investigated. There was no loss of power during the two hrs. at 9/10ths. rated power, the power developed on full throttle (with silencers) being 512 B.HP. Oil consumption average 9 pts/hr. The pistons are those which were in use when this engine was a dry liner engine, having skirts of reduced length. All the rings are quite free and the pistons themselves are in good condition. This engine is now dismantled for A.I.D. inspection - it will be rebuilt and submitted for A.I.D. final Acceptance Test. Hs{Lord Ernest Hives - Chair}/V.Halliwell. | ||