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Old 14th January 2001 | 14:19
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THAI TUN
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Hi robbert, here are some figures for the ATR42-300:

100% RPM = 1200
Cruise RPM = 86%
Prop diameter = 13ft
Cruise = 255 kt TAS
Max FL = 250
Vmo = 250 kt
Mmo = 0.55

What kind of model are you building?

THAI TUN