Hi guys, I've been off-list for a looong time as we emigrated and everything stood still for many moons. My KR2S and Tailwind is still at the hanger overseas, and I am yet to settle and get property for the two "projects" to reside.
However, I started planning for when they arrive and tried to do some calculations (formulae below): * Wing Sweep, C = (S * (A + 2B)) / (3 * (A + B)) * MAC (length) = A - (2 * (A - B) * (0.5 * A + B) / (3 * (A + B))) * MAC location, d = Y * ((A - MAC) / (A - B)) * wing area, WA = Y * (A + B) * tail area, TA = YY * (AA + BB) * wing aspect ratio, ARw = ((Y * 2) ^ 2) / WA * tail aspect ratio, ARt = ((YY * 2) ^ 2) / TA * Tail Arm = (D - wing AC) + tail AC * tail volume, Vbar = (TA / WA) * (Tail Arm / MAC) * NP (%MAC) = 0.25 + (0.25 * sqr(sqr(ARw)) * Vbar *ideal CG (%MAC) = NP - Desired Static Margin * Moment (total) = (Lt wheel Wt * Lt Arm) + (Rt Wheel Wt * Rt Arm) + (Ctr Wheel Wt * Ctr Arm) + (Pilot Wt * Pilot Arm) + ( Psngr Wt * Psngr Arm) + (Fuel Wt * Fuel Arm) * actual CG (%MAC) = ((Moment / Total Wt) - (Datum2LE + C)) / MAC * actual static margin % = (NP - actual CG) / MAC * 100 Has anybody done this before and is it possible to give me some of the numbers relating to the KR2S. (I cannot go and measure and the plans is somewhere in a box:-) Cheers, Pierre _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
