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INTRODUCTION
These calculations were prepared in connection with a comparison of the P-51D and P-51H airplane.
Considerable effort was expended to achieve agreement between flight test and calculated results, and the data presented represent good agreement with most of the flight test results.
SUMMARY OF CALCULATED PERFORMANCE
Note: Performance figures are based on N.A.C.A. standard atmospheric conditions and gross weight as given in item (2) except as noted.
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| | (1) | Loading Condition | Fighter
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| | (2) | Gross Weight - Take-Off | 9611 lb.
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| | (3) | Fuel Load | 180 gal.
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| | (4) | Wing Loading | 41.2 lb./ft.2
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| (5) | Maximum Speed – War Emergency Power
(3000 RPM. – 67" Hg. M.P.) |
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| | At Sea Level | 368 MPH
| | At Low Blower A.C.A.* | 414 MPH/11,300 ft.
| | At High Blower A.C.A.* | 440 MPH/24,500 ft.
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| | (6) | Maximum Speed – Military Rating
(3000 RPM – 61" Hg. M.P.) |
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| | At Sea Level | 355 MPH
| | At Low Blower A.C.A.* | 412 MPH/13,300 ft.
| | At High Blower A.C.A.* | 435 MPH/26,200 ft.
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| | (7) | Maximum Speed – Normal Power
(3000 RPM – 46" Hg. M.P.)
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| | At Sea Level | 312 MPH
| | At Low Blower A.C.A.* | 380 MPH/15,200 ft.
| | At High Blower A.C.A.* | 409 MPH/28,500 ft.
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| | (8) | Maximum Rate of Climb – War Emergency Power
(3000 RPM – 67" Hg. M.P.)
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| | At Sea Level | 3410 ft./min.
| | At Low Blower A.C.A.* | 3510 ft./min./7500 ft.
| | At High Blower A.C.A.* | 2680 ft./min./21,200 ft.
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| | (9) | Maximum Rate of Climb – Military Power
(3000 RPM – 61" Hg. M.P.)
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| | At Sea Level | 3030 ft./min.
| | At Low Blower A.C.A.* | 3170 ft./min./9700 ft.
| | At High Blower A.C.A.* | 2300 ft./min./23,200 ft.
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| | (10) | Maximum Rate of Climb – Normal Power
(3000 RPM – 46" Hg. M.P.)
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| | At Sea Level | 1900 ft./min.
| | At Low Blower A.C.A.* | 2070 ft./min./12,300 ft.
| | At High Blower A.C.A.* | 1510 ft./min./25,100 ft.
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| | *A.C.A. – Airplane Critical Altitude
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| | (11) | Time to Climb to 20,000 ft.
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| | At War Emergency Power | 6.4 min.
| | At Military Power | 7.0 min.
| | At Normal Power | 10.7 min.
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| | (12) | Service Ceiling
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| | At 3000 RPM | 36,900 ft.
| | At 2700 RPM | 35,500 ft.
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| (13) | Take-off Distance (No Wind)
| | Ground Run | 1040 ft.
| | Total Distance to clear a 50 ft. obstacle | 1720 ft.
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| | (14) | Landing Distance (No Wind)
| | Based on Landing Gross Weight,
Fighter Condition less 1/2 fuel = 9071 lb. |
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| | Ground Run | 1520 ft.
| | Total Distance to clear a 50 ft. obstacle | 2250 ft.
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| | (15) | Landing Speed | 110.7 MPH
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| | (16) | Stalling Speed, (at above listed Landing Gross Weight = 9071 lb.) | 95.4 MPH
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| | (17) | "Yardstick" Range at 15,000 ft.
(All fuel used for cruisng at speed for maximum range)
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| | Fighter Condition (180 gal. fuel) | 1108 miles
| | Long Range Fighter - Two 75 gal. ext. tanks**
| | (265 gal. internal fuel - 150 gal. external fuel) | 2393 miles
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| | **External fuel tanks dropped when empty.
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| | P-51D Calculated Altitude Performance
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