Aces High Bulletin Board
General Forums => The O' Club => Topic started by: thorsim on January 10, 2010, 06:37:22 PM
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thought you guy might enjoy
http://agw.bombs-away.net/showthread.php?t=91065
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t
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oops sorry forgot most of you cant get there ...
here is the vid in the thread ...
http://www.youtube.com/watch?v=p-_RHRAzUHM&feature=player_embedded
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again
t
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That's pretty darn cool! But.. this belongs in the O'club.
:aok
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Plus you might wanna put a description of what it is or it's gonna get Skuzzified
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can i move it?
don't want to add to skuzzy's work load
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I don't think you can move it thorsim.
Cool stuff for sure, but they actually understate the current knowledge of what the peregrine can do. 150mph, 10g's, has now been upped a bit. 254mph proven, 300mph suspected, with a 25-35g pullout as low as 15ft off the ground. Absolutely amazing.
As cool as the camera stuff is, especially with it's different human-impossible perspective, I've got to say it's even cooler in person, hehe! They sound like blow-torches as they go by...
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how much drag does that camera add, kinda like drop tank huh...?
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how much drag does that camera add, kinda like drop tank huh...?
When they're filming, the birds aren't going "max" speed. They'll go plenty fast though, if you get them up and let them stoop. During lure flying, like in that video, they aren't going terribly fast. The birds often wear a small, lightweight "backpack" anyway, that the telemetry clips into. They take the telemetry off and replace it with the camera. The problem I've run into with my camera is that even at just .8oz, it flops left/right too much. My camera is an el-cheapo model though, and records onto a memory card. The camera from that video actually broadcasts, and they get a much better image.
You have to remember too, that the bird has to carry that camera load through the G's in its turns and at the bottom of its stoops. That adds up fast. The bird itself only weighs about 20-30oz depending on whether it's male or female.
When they really go for speed, they don't measure it with a camera, and you're right the drag would be detrimental. The only thing I've seen them attach to measure speed was the "guts" out of a skydivers dive watch (I don't remember what it's actually called). They use that to measure vertical descent rate, and it clips into a tailmount, which is another way to attach telemetry.
With the camera, beyond some really cool footage, they like to turn it to see how the tail is working to control flight, etc...
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Amazing video, thanks for posting the link.
ack-ack
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Sweet....
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Here's a link to another clip. This one is of a falcon released from a plane, and then chases/catches a lure released by the skydiver/trainer. 242mph. Later they had either 252 or 254 mph, I don't remember which.
http://www.youtube.com/watch?v=j3mTPEuFcWk
The thing that makes these studies tough is- how do you know the bird/animal is going as fast as it can? In this case, the bird went fast enough to do what it wanted to achieve- it caught the lure. Could it have gone faster? Likely... We have top speed estimates of cheetahs and pronghorn, based on recorded speeds or estimates, but how do we know those speeds are the "best" they can do?
In sections of this film (not shown) the researchers were a bit concerned, because they found that the falcon had trouble keeping up with them in free-fall. Earlier speed estimates of 150mph were called into question. Then they realized the falcon was having trouble staying with them at such a slow speed, lol!
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Neat stuff thanks.
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In keeping with the theme of the thread... I'm not sure how fast these Eagles are going but ... :O!
http://www.youtube.com/watch?v=Re644qgnCtw&NR=1 (http://www.youtube.com/watch?v=Re644qgnCtw&NR=1)
Flyin grabem right in the snout.. incredible!
Another
http://www.youtube.com/watch?v=VklTs-Tid_I&NR=1 (http://www.youtube.com/watch?v=VklTs-Tid_I&NR=1)
Some mean Eagles :aok
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wow amazing video thanks for sharing, if we could pilot our AH planes like that we would pwn everyone lol
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I've always enjoyed these birds since one decided to use my head as a pedestal. Thanks for sharing.