Quote:
Originally Posted by Flyndaran
It was a living hang glider, not much of a wing flapper.
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Actually, nobody really knows for sure. Even if they were mostly gliders (which is probable) they still had to also fly. Modern birds that are mostly gliders (many of the Cathartiformes for instance) are still flyers, they have to be in order to get high enough in order to glide and to catch thermals.
Current research into ornithopters has used Quetzalcoatlus as a model including at least one military UAV program.
Besides large ornithopters will also have to be "mostly gliders" for similar reasons. Which isn't really a problem, AFAICT.