All that is needed now is enough power. Archoeopteryx lacks the great keeled breaslplate of modern flyttg birds. (Realistic dinosaur costume)But a key part of this structure’s function is to support a specialized wingelevating supracoracoideus muscle. Storrs Olson and Alan Feduccia explained in 1979 that the main flight-power source of birds, the wing-depressing pectoralis, is supported up front by the furcula.(Life size dinosaur model) The great size of Archaeopteqx’s furcula must have evolved for this task. The rest of its enlarged wing depressors could have been spread out over the chest, like in bats. If the pectoralis mad.e up 10 to 15 percent of the total body mass, it would be enough for flight.
Archoeoptery had only the beginnings of the supracoracoideus wing-elevating system (walking dinosaur costume). Modern birds have trouble with climbing flight if the wing-elevating supracoracoideus muscle is disabled, but this is probably because they have become dependent upon this spectalized system. Bats do fine without it. Good -ing elevation could have been achieved by the well-developed upper shoulder muscles in Archceopteryx.
So Archaeopterry could probabty have taken off from level ground, either with a push from the hind limbs or a short run. (Animatronic dinosaur)It could then climb to cruising height, and if it had enough longendurance red fibers in its fl ght muscles, flap along for long distances. If the flight muscles were mainly short-burst white fi.bers, like a chicken’s, then short-term climb and speed performance would be enhanced at the expense of endurance. Upturning the long tail and sweeping the wings forward as airbrakes, it could make bipedal ground landings. But its flight was still on the crude side. The deep, keeled body and very long tail surface made for good stability, but countered quick rolls and turns.