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).
Proposed specification for an engine test of the F.XIV.B. engine for the Fairey Postal Aeroplane.
| Identifier | ExFiles\Box 36\2\ scan 176 | |
| Date | 16th July 1928 | |
| FAIREY POSTAL AEROPLANE. ROLLS-ROYCE F.XIV.B. ENGINE. Proposed specification for engine test. Propeller designed for 590 B.HP. and 2500 r.p.m. at 90 m.p.h. at sea level. | STAGE. | HRS. DURATION. | THROTTLE POSITION. | B.HP. | RPM. | Equiv: altitude. | Flying condition. | Remarks. | |---|---|---|---|---|---|---|---| | 1 | 1/4 | Full | - | 2212 | Sea level. | Take off | = 536 BHP expected | | 2 | 1/4 | Full | - | 2500 | Climb. | Climb | = 590 " " | | 3 | 9 | Throttled. | 338 | 2328 | 2280 ft. | Cruising. | Throttles opening and load to be adjusted in stages, 3 - 10 to give specified B.HP. and RPM. | | 4 | 6 1/4 | " | 315 | 2311 | 4435 " | " | " | | 5 | 6 1/4 | " | 295 | 2295 | 6335 " | " | " | | 6 | 7 | " | 268 | 2278 | 8260 " | " | " | | 7 | 8 | " | 231 | 2255 | 10000 " | " | " | | 8 | 10 1/2 | " | 185 | 2230 | " | " | " | | 9 | 14 | " | 120 | 2190 | " | " | " | | 10 | 10 | " | 100 | 2180 | " | " | " | C.E. 43/DM.{D. Munro} Technical Office 16th. July 1928. signed R.A.R. | ||