Originally Posted by Evan
Evan -- iv got little planes that fly very well also,,,, like I stated - get off the constant power propeller kick, Birds don't fly level flight or make gains that way, their propulsion system is intermittent be it an owl or eagle - one may use speed and have to propel force backwards to maintain the speed and the other may use a more direct lift approach --- either way -- the fiddler not only has to be paid -
Due to the intermittent propulsion system it means that WAY more force is intermittently being applied to the birds airframe and wing structure to keep its weight aloft, In fact its about double...
Not so if the bird gets to glide down at a radical angle, ZERO intermittent and 100% controlled drag,
So take the maximum of the intermittent force that the birds capable of applying and now instead of it only happening half the time it can be concentrated 100% and controlled even better without the consideration of propulsion losses... There fully capable of not only glide coasting their own weight but the weight of another eagle that's totally tucked with minimal drag --- as can be seen in mating rituals or even fighting, its by far not even close to their limitations as this can be exceeded drastically.
as I previously mentioned --- (up to a certain point) all that has to be adjusted is the air speed and angle of descent.
That's my qualifications...