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Old Sep 18, 2013, 04:42 PM
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A different kind of FPV...

Somebody attached a GoPro to an eagle...

Flying eagle point of view (1 min 26 sec)


Pretty freaking awesome!
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Old Sep 18, 2013, 04:46 PM
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Sure. It seems wonderful, beautiful, free, and exotic today.

But you just watch. You'll be able to pick up your FPV equipped eagle from Banggood before the year is out.

In fact, if you go out there right now, you can probably pre-order yours.
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Old Sep 18, 2013, 07:46 PM
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Originally Posted by dapple63 View Post
Sure. It seems wonderful, beautiful, free, and exotic today.

But you just watch. You'll be able to pick up your FPV equipped eagle from Banggood before the year is out.

In fact, if you go out there right now, you can probably pre-order yours.
I managed to get ahold of one for reviewers, and it's nothing like what the videos show. The servos must be defective because it makes this horrible cluck-cluck sound constantly. On top of that, the maximum range is only 10 ft, and it uses some obscure battery connector. What I found in the box had a completely different appearance, and quality to what I saw online.

1/5 Very disappointing product from Banggood.
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Old Sep 18, 2013, 09:30 PM
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How fn funny would it be if you payed 699.99 for one from bang good and then when you opened the box it was some crow with an avian disease and half the feathers missing with a 700mw vtx/380 mah 3s strapped to it with a ferret harness. To me that would be very, very funny disappointment and failed substitution.

In the end you could at least try and contact the seller for dispute, you'd have a cool bird anyway.
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Old Sep 18, 2013, 10:29 PM
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Okay, no eagles in this video...just some guys with giant brass ones.

http://vimeo.com/moogaloop.swf?clip_id=18150336
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Old Sep 18, 2013, 10:38 PM
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Originally Posted by nickpapagiorgio View Post
Somebody attached a GoPro to an eagle...

https://www.youtube.com/watch?v=G3QrhdfLCO8

Pretty freaking awesome!
If there was one super hero power I could have, it would definitely be flight!
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Old Sep 18, 2013, 11:00 PM
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Originally Posted by Dauntless Stan View Post
Okay, no eagles in this video...just some guys with giant brass ones.

http://vimeo.com/moogaloop.swf?clip_id=18150336
What do you think their glide ratio would be?
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Old Sep 19, 2013, 12:39 AM
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What do you think their glide ratio would be?
According to wiki, wingsuit flying can achieve glide ratios of about 2.5:1.
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Old Sep 19, 2013, 09:15 AM
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According to wiki, wingsuit flying can achieve glide ratios of about 2.5:1.
It is amazing. And you'd think that the parafoil chutes that they deploy then must have an even better lift/drag (glide) ratio. Truthfully, not much better; at best 3:1 or 4:1.

The difference is the sink rate. The squirrel suit is giving you an l/d of 2.5:1 at about 118 feet per second forward speed. That's a sink rate of just over 46 feet per second. It would hurt to hit some at 80 mph while fall almost 5 stories a second.

The chute is giving you an l/d of 3:1 at 30 feet per second forward speed. That's a 10 foot per second on the sink rate. It isn't an efficient wing, but the larger wing area (lower wing loading) makes for a survivable drop.

Of course, at the end of the flight, the skydiver trades forward speed for temporary lift by flaring/stalling the wing at the last moment. That results in a nice 3 feet per second sink, which is not much different than walking down a set of stairs.

There are some who hope to find a way to flare a wing suit, but I am skeptical you can trade a 46 fps drop for much less.
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Old Sep 19, 2013, 10:54 PM
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hard to fathom the realities of a wing suit ever offering sufficient drag to land safely. Just considering the size of a parachute or the lift capacity of a 2meter wing.

maybe one day we'll go back to the 1900s and start strapping wings to our arms and flapping. Even still, I imagine the foil area needed to glide a 150-200lb man plus gear would be fairly restrictive to carry and wear.

I put more hope in VTOL with jet engines or ducted fans.
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Old Sep 19, 2013, 11:02 PM
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We continue to discount the lift capabilities of the evolution of the bird wing structure and the feather. That is where we are missing out. Recreate a bird wing and feathers, figure out how to scale it up, and create the mechanism to flap it and you may have something. Styrofoam is neat and all but it just doesn't compare to nature... yet.
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Old Sep 20, 2013, 02:54 PM
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I put more hope in VTOL with jet engines or ducted fans.
Well there you go. A couple of RATO (rocket assisted takeoff) bottles on the boots ala Iron Man should do the trick. Just make sure you tuck and ignite at just the right angle and moment, or......

....well you can use your imagination.
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