Comments on: The wings on this plane go up and down

Leonardo da Vinci sketched out birdlike human flight. A group of Canadian researchers is now ready for a real-world test.
Photos: Flapping like a mallard

[Jonathan]

Why?

Seriously. This just seems odd. I mean moving wings in planes is a cool idea for a movie like Sky Captain and the World of Tomorrow but in reality it seems like it could cause more problems then solutions. ???

actually

I think planes would benefit greatly from this sort of thing. I imagine these sort of planes would be easier to take off, control, and be safer.

Take off because this way you only need a vertical runway. Control and safety because the whole thing doesn't have to be hurtling at some ridiculous speed just to stay in the air.

I'm no physics major or scientist, however. I'd love to hear some educated feedback on this vehicle.

[Jonathan]

Why?

Seriously. This just seems odd. I mean moving wings in planes is a cool idea for a movie like Sky Captain and the World of Tomorrow but in reality it seems like it could cause more problems then solutions. ???

actually

I think planes would benefit greatly from this sort of thing. I imagine these sort of planes would be easier to take off, control, and be safer.

Take off because this way you only need a vertical runway. Control and safety because the whole thing doesn't have to be hurtling at some ridiculous speed just to stay in the air.

I'm no physics major or scientist, however. I'd love to hear some educated feedback on this vehicle.

[Earl Benser]

Nature has the answer.

Flapping wings are an ancient concept. And nature has explored
the limits for this kind of power. Small bodies, eg.,insects, bats
and sparrows, flap. Larger bodies, eg., eagles, vultures, and
condors, flap only when absolutely necessary, otherwise they
glide/soar on fixed wings. Even larger bodies have no chance at
all of successfully using flapping wings.

Why explore the obvious?

[David Arbogast]

Nature has unrevealed secrets

Researchers are exploring nature's way of achieving flight for the same reason they are building submarines that swim like a Tuna. Nature has simply demonstrated an extreme efficiency that man has yet to duplicate. The amount of energy required for a Tuna to reach top speed is far less than that of any similarly-sized man made sub. The design of birds is similarly efficient, and as an unmanned aircraft, the concept may have more potential than any current design.

Your comment that only small insects beat their wings seems somewhat limited in view and scope. Large birds may glide, and a wing-flapping craft may also be able to glide. But all of those birds lift off the groud with their wings. In prehistoric times, there were much larger flying animals and insects including dragonflys with a wingspan over a yard.

This research is being conducted in an effort to understand how nature achieves such dramatic and successful results. In other words, people are trying to *learn.* To sit back and stare at the world and suggest that nature tried it and it failed seems to me to be a prohibitive and defeatist attitude. Not to mention, that nature is actually more successful at flight than man in many respects.

[Earl Benser]

Nature has the answer.

Flapping wings are an ancient concept. And nature has explored
the limits for this kind of power. Small bodies, eg.,insects, bats
and sparrows, flap. Larger bodies, eg., eagles, vultures, and
condors, flap only when absolutely necessary, otherwise they
glide/soar on fixed wings. Even larger bodies have no chance at
all of successfully using flapping wings.

Why explore the obvious?

[David Arbogast]

Nature has unrevealed secrets

Researchers are exploring nature's way of achieving flight for the same reason they are building submarines that swim like a Tuna. Nature has simply demonstrated an extreme efficiency that man has yet to duplicate. The amount of energy required for a Tuna to reach top speed is far less than that of any similarly-sized man made sub. The design of birds is similarly efficient, and as an unmanned aircraft, the concept may have more potential than any current design.

Your comment that only small insects beat their wings seems somewhat limited in view and scope. Large birds may glide, and a wing-flapping craft may also be able to glide. But all of those birds lift off the groud with their wings. In prehistoric times, there were much larger flying animals and insects including dragonflys with a wingspan over a yard.

This research is being conducted in an effort to understand how nature achieves such dramatic and successful results. In other words, people are trying to *learn.* To sit back and stare at the world and suggest that nature tried it and it failed seems to me to be a prohibitive and defeatist attitude. Not to mention, that nature is actually more successful at flight than man in many respects.

tHE WINGS ON THIS PLANE GO UP AND DOWN

This was tried in Medicine Hat, Alberta, back in the 1950's. A friend of mine, Dick Northam agreed to try to fly it. After a couple of unsuccessful attempts to get it airborne, the designer decided that they would tow it with a truck to get it off the ground. The "Ornithopter" as it was called, reached an altitude of about 30 to 40 feet then propmptly came down like a brick.
Luckily, my friend Dick was not hurt other than a few bruises and a sore butt.
I can't believe anyone would spend the time and money to try wing flapping again.

tHE WINGS ON THIS PLANE GO UP AND DOWN

This was tried in Medicine Hat, Alberta, back in the 1950's. A friend of mine, Dick Northam agreed to try to fly it. After a couple of unsuccessful attempts to get it airborne, the designer decided that they would tow it with a truck to get it off the ground. The "Ornithopter" as it was called, reached an altitude of about 30 to 40 feet then propmptly came down like a brick.
Luckily, my friend Dick was not hurt other than a few bruises and a sore butt.
I can't believe anyone would spend the time and money to try wing flapping again.