Quote:
Originally Posted by Juha
Ah, long debate
now according to Dornier's tests max speed of Do 17Z-2 was 425 km/h at 5000m at 8600kg and 433km/h at 7400 kg. To me the effect of 1200kg more mass to max speed wasn't very big.
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Hello Juha,
I took values from the "Lentäjän Näkökulma IV" and got 423,66km/h at 5000m for 8600kg. Assuming e=0,8, n=80% and 120kp exhaust thrust (Do 17Z seem to have ejector outlets). So while not exactly accurate, the ballpark appears to be correct.
Edit: And for the Bf 109G-2 I got 3,22km/h speed reduction for 3000=>3500kg at 1,30ata 2600rpm. e=0,8 n=80% exhaust thrust 70kp (based on MT-215 data)