TheHolm

According new EULA you can't install game to more then one computer. So expected behaviour from Steam to remove KSP from all machines but one. Funny enough, game still allow to run add-ons licensed under GPL/Apache which are in direct contradiction with EULA. Interesting who is in fault in this case.

"-Balloons suitable for Eve/Duna/Laythe" - Jool?? I would love to build floating landing platform on Jool

I'm trying to get surface velocity vector. I can not find any direct way to get it. Best I managed was refframe = vessel.orbit.body.reference_frame surface_ref = vessel.surface_reference_frame v_vector = conn.space_center.transform_direction(vessel.velocity(refframe),refframe,surface_ref) But this method is really inaccurate around around ground altitude, probably due to rounding. Is there better way?

Do you know drag equation for wings? It is different from normal drag. Is it also linear proportional to speed? I would expect see ^2 there.

Could you please do it? Or just point on Wiki page or other docs where lift mechanic described.

Wings can greatly increase deltaV by providing a lift to compensate a gravity pull. For each Newton of drag they generates 1.9 Newtons of lift if placed correctly.The biggest problem is that it very hard to build effective plane and even harder to properly pilot it.