there is a very simple way to tell.
1) set a climb speed (use .speed ###) lets say a convient speed is uhmmmm 160 mph ias.
2) go to an altitude. pick a convient one. lets say 5000 ft.
3) engage climb.
4) let it climb for a few seconds. like 10-15 sec should be enough. engage the desired amount of flaps (test all of the flap settings)
5) reduce rpm to minimum.
6)hit e key to shut off engines
record sink rate (on climb rate indicator) as you pass back through the reference altitude for each flap setting. let me know what you get.
