Engine BMW D 2/85259
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Wide engine cowling
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Gills
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Fixed inner wheel doors, left wheel door reinforced in accordance with BSK 72314
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Armament: 2 MG 17, MG 2 151, with ammunition. MG FF belt hatches.
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Oil cooler P 127611 with bridge mounting for the armored ring.
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Exhaust nozzle holder in accordance with BSK 858
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Reinforced steel cowl, top and left side shell.
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Jet nozzles 13 and 14 with bracket according to HSK 1118.
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Jet nozzle 8 with clamp according to BSK 842
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Reinforced landing gear wheels.
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Landing gear release with pot magnet.
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Landing gear bushings Silumin.
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1.) |
Level speeds with combat and economical power for various operational conditions with additional loads.
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2.) |
Climb rate with combat power without load or with 500 kg bomb.
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3.) |
Endurance testing.
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1.) |
Speeds obtained in level flight with the named operational conditions at 0 m are shown in the table and at higher altitudes in the graph.
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2.) |
See graph. |
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Ceiling without loads; |
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Full flight weight: |
G = 8,554 lbs. (3880 kg.) HG = 35,761 feet (10900 m)
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With 1,102 lb. (500 kg.) bomb: |
G = 9,656 lbs. (4380 kg.) HG = 31,496 feet (9600 m)
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3.) |
An interim check of
the oil cooler with bridge mounting for the armored ring showed no faults after 6 ½ hours flight.
The fixed inner wheel doors in accordance with BSK 72314 remain
closed also in a dive after they had been reinforced by an additional welded
pipe and are therefore all right.
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The absolute speed for Werk Nr. 619 is too low. Since nothing related to the engine could not be found, a ram pressure calibration is needed for clarification. The
ram pressure calibration, however, is only of secondary interest here, since
the issue is speed differences.
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Wenzendorf, 11 January 1943
Gt/Kl.
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