BIRD IN FLIGHT ONLY -- share your BIF photos here

[Krob78]

Great Egret in Flight
2014 Breeding Season

 

[Krob78]

Osprey~
5D Mk III
f/14
1/1600th
ISO 1250
400mm

 

[Valvebounce]

Hi GraFax.
Very nice shot, well done.
I wonder how the aircraft engineer/designer first came up with the idea of wing fences! :

Cheers, Graham.

Here's a nice look at the wing profile in flight. For those interested in fluid dynamics and such....

 

[DominoDude]

Hi GraFax.
Very nice shot, well done.
I wonder how the aircraft engineer/designer first came up with the idea of wing fences! :

Cheers, Graham.

Here's a nice look at the wing profile in flight. For those interested in fluid dynamics and such....

From what I've been told, winglets / wing fences started as an idea from people observing eagles and how some of them tend to spread their "fingers" when they glide.
The lift you want from a wing is close to non-existent at the outermost part of the wing, and instead you have a lot of vortexes forming that actually lower the lifting capacity. The winglets counter the creation of vortexes.

 

[Click]

Osprey~

Very nice shot Krob78.

 

[allanP]

Osprey~

Very nice shot Krob78.

+1

 

[spandau]

Osprey diving on fish. Canon 70D with 400MM F6.3 1/1100 125 ISO
Goshawk getting chased out of other birds territory.

 

[Click]

Lovely shots spandau. I especially like the 2nd one.

 

[Cosmicbug]

Black Kite..
Taken with a 7D and a very old Canon 35-350L f5.6 at 350...

 

[2n10]

Well taken shots everyone.

 

[jrjr99]

IMG_8989 by jrjr73, on Flickr

lol

 

[allanP]

Osprey diving on fish. Canon 70D with 400MM F6.3 1/1100 125 ISO
Goshawk getting chased out of other birds territory.

Well done spandau.
The ducks pictures too.

 

[ERHP]

Red Tailed Hawk flying through the trees.

 

[Click]

Beautiful shot ERHP. Well done.

 

[lion rock]

This is really a big reason to get my GAS addiction fixed. My 70-200 f/2.8 II just doesn't have the reach for the attached photo. I hope the 100-400 II would be available soon.
The photo is highly cropped. Taken near Catlin Lake, NZ.
- r

 

[Valvebounce]

Hi GraFax.
Yep that's kind of what I was getting at when I posed the wing fence question! But then they have been at it a bit longer than us!

Cheers, Graham.

You guys are taking me back to my school days. Laminar flow and boundary layer separation. I don't remember much but they do seem to use the winglets to regulate their stall speed. We still have a lot to learn about flying from birds.

 

[rpt]

Hi GraFax.
Yep that's kind of what I was getting at when I posed the wing fence question! But then they have been at it a bit longer than us!

Cheers, Graham.

Hi Graham,
I just knew that if I mentioned fluid dynamics I'd get an interesting reply. I have to admit that I had to google "wing fence". I didn't know that's what those where called. You can learn something new every day if you try. Thanks! - Brian

Thank you Graham and Brian, I learned something new today.

I wonder when the aircraft designers will get them to be configurable and responsive...

 

[Valvebounce]

Hi GraFax.
Yep that's kind of what I was getting at when I posed the wing fence question! But then they have been at it a bit longer than us!

Cheers, Graham.

Hi Graham,
I just knew that if I mentioned fluid dynamics I'd get an interesting reply. I have to admit that I had to google "wing fence". I didn't know that's what those where called. You can learn something new every day if you try. Thanks! - Brian

Thank you Graham and Brian, I learned something new today.

I wonder when the aircraft designers will get them to be configurable and responsive...

Hi rpt.
When pigs take to the sky! And I don't mean chopper coppers aka bear in the air! :

Cheers, Graham.

 

[Don Haines]

Bird in flight.... but not by much

 

[Click]

Bird in flight.... but not by much

LOL Very nice shot Don.