>Secondly, and of greater concern, the higher altitude will also affect the >level of control authority, so while you may well get off the ground on that >hot day at your high altitude strip with a moderate load, you may find that >you lack sufficient elevator authority to get out of ground effect, and even >though you may have sufficient lift from your wing extensions, and power up >the yazoo from your turbo'ed engine, you are still going to trip over the >boundary fence because you are stuck in ground effect.
Control effect from the elevator is related to indicated airspeed. While the less dense air at altitude will give one a lower airspeed than true, for a given indicated one will get the same controllability as at sea level. Larry Severson Fountain Valley, CA 92708 (714) 968-9852 lar...@socal.rr.com
