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 data and engine particulars for a Dewoitine D.27 aircraft with a Hispano-Suiza engine.
| Identifier | WestWitteringFiles\V\December1930-February1931\ Scan045 | |
| Date | 23th December 1930 guessed | |
| 2 DEWOITINE D.27. FITTED WITH 500 CV. HISPANO-SUIZA LANDING SPEED = 53.7 M.P.H. SPEED RANGE = 3.38 PRACTICAL CEILING = 30,400 FT. TOTAL WEIGHT = 2935 LBS. WING AREA = 188 sq FT. WING LOADING = 21.6 LBS/SQ FT. Graph Data: X-Axis: ALTITUDE IN FEET (0 to 30000) Left Y-Axis: SPEED M.P.H. (150 to 180) Right Y-Axis: TIME IN MINUTES (0 to 30) Curve 1 (decreasing): SPEED M.P.H. Curve 2 (increasing): TIME IN MINUTES PARTICULARS OF 500 HP. HISPANO SUIZA TYPE 12 MB. (As fitted in the Dewoitine D.27 machine). Direct Drive Engine. Normal Power. 500 HP. Normal R.P.M. 2000 Max. Power. 580 Max. R.P.M. 2100 Compression Ratio. 6/1 Bore. 5.12" Stroke. 5.70" Capacity. 2375 cu. ins. Specific Fuel Consumption. .484 lbs/HP/Hr. Specific Oil Consumption. .011 lbs/HP/Hr. Dry Weight. 880 lbs. | ||