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).
Performance comparison of a Martinsyde Scout aircraft fitted with 'Falcon' 111 and 300 HP Hispano engines.
| Identifier | ExFiles\Box 36\2\ scan 050 | |
| Date | 26th April 1917 | |
| R.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. X 2934 COMPARISON OF PERFORMANCE OF MARTINSYDE SCOUT FITTED WITH "FALCON" 111 & 300 HP. HISPANO. X.3369. X.2810. X2834. £ R.R. Hispano. Total weight of machine 2325 lbs. 2289 lbs. HP. Climbing speeds. 278 270 HP. fly level. 289 305 Climb. mins. secs. mins. secs. 10,000 6.13 6.40 15,000 11.9 11.45 17,000 14.7 ---- 20,000 ---- 19.40 Speed. M.P.H. M.P.H. 10,000 138 142.5 15,000 132.5 136.5 17,000 129.5 ---- 20,000 ---- 126 Petrol consumption full throttle - corrected. 10,000 16.5 g.p.h. 18 g.p.h. 15,000 14.5 g.p.h. 15.5 g.p.h. Propeller dia. 2840 mm. 2740 mm. Pitch. 3050 mm. 2060 mm. | ||