You can only estimate it. Aeromatic uses an estimate like this for the CL of airliners:
0.2 + (4.4 * alpha) + (1.5 * flaps_norm) if you assume a rotation to 10 degrees for lift-off, then alpha is 0.1748 in radians, and the above formula becomes: 0.9678 + (1.5 * flaps_norm) In the case of the 737-300 model in FlightGear, flaps 1 gives a value of 0.125 for flaps_norm, so the result is: 0.9678 + 0.375 = 1.3428 It's in the ballpark anyway :) Dave -- **************************** David Culp [EMAIL PROTECTED] **************************** _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
