A380 hard landing at Oshkosh - video

http://www.avweb.com/avwebflash/excl..._200850-1.html

Yowser!

"Darkwing" wrote

http://www.avweb.com/avwebflash/excl...re2009_AirbusA
380_HardLanding_200850-1.html

Firm... yes, but not near as bad as Gryder makes it out to be. Now...if
the wheels had bounced off the runway, that would probably be classified
as a hard landing. Remember, in order to meet the certification standards,
the transport category aircraft must be able to land with a 600fpm sink
rate at MLGW and with a 360fpm sink at MTOGW. This aircraft was nowhere
near those numbers.

Gryder's comment about the aircraft still being useable is more befitting a
comedian than an aviation professional.

Bob Moore
ATP B-707 B-727
PanAm (retired)

"Robert Moore" wrote:

Firm... yes, but not near as bad as Gryder makes it out to be.

The crowd I was in went "ooh!" when the 380 touched down. It looked damned
hard to me.

--
Dan

"How can an idiot be a policeman? Answer me that!"
-Chief Inspector Dreyfus

Safety first, and in a crosswind situation, it's safest to "plant" the
plane. Even more so if you have a limited runway in front of you.

Those two super pilots who comment have seen an A380 for the first time,
yet they've become instant experts. Just cheap Airbus bashing.

John Smith wrote:

Safety first, and in a crosswind situation, it's safest to "plant" the
plane. Even more so if you have a limited runway in front of you.

Those two super pilots who comment have seen an A380 for the first time,
yet they've become instant experts. Just cheap Airbus bashing.

On the crosswind, all aviation videos (other than those taken standing
on the centre line) appear to show massive drift angles.

What sort of crosswind would require 10 deg of crab on an a/c of this
size ?

Gilbert Smith wrote:
What sort of crosswind would require 10 deg of crab on an a/c of this
size ?

Crab angle depends on speed, not on size.

I have no idea what the approach speed was. But assuming reasonable
numbers, 10 degrees of crab yield a crosswind component of 20 to 25 knots.

Gilbert Smith wrote:

On the crosswind, all aviation videos (other than those taken standing
on the centre line) appear to show massive drift angles.

What sort of crosswind would require 10 deg of crab on an a/c of this
size ?

Ahem...
for an aircraft of ANY size, a 10 degree crab is required by an 18 kt
crosswind, for every 100 kts of approach sppeed.

But approaching aircraft are photographed by telephoto lenses - which
greatly exaggerate visual crab angle.

Brian W

On Wed, 05 Aug 2009 21:06:40 -0500, brian whatcott
wrote:

Gilbert Smith wrote:

On the crosswind, all aviation videos (other than those taken standing
on the centre line) appear to show massive drift angles.

What sort of crosswind would require 10 deg of crab on an a/c of this
size ?

Ahem...
for an aircraft of ANY size, a 10 degree crab is required by an 18 kt
crosswind, for every 100 kts of approach sppeed.


This may be a little misleading. The crab angle decreases with
increasing TAS for a given crosswind strength. This may suggest that
the crab angle increases with increasing TAS.

As for the calculation of crab angle:

crab angle is the arcsin of (crosswind strength / true airspeed)


But approaching aircraft are photographed by telephoto lenses - which
greatly exaggerate visual crab angle.

Brian W

Jim wrote:
On Wed, 05 Aug 2009 21:06:40 -0500, brian whatcott
wrote:

Gilbert Smith wrote:

On the crosswind, all aviation videos (other than those taken standing
on the centre line) appear to show massive drift angles.

What sort of crosswind would require 10 deg of crab on an a/c of this
size ?
Ahem...
for an aircraft of ANY size, a 10 degree crab is required by an 18 kt
crosswind, for every 100 kts of approach sppeed.


This may be a little misleading. The crab angle decreases with
increasing TAS for a given crosswind strength. This may suggest that
the crab angle increases with increasing TAS.

Yes indeed. Thanks for pointing that out.

Brian W

On Aug 5, 10:06*pm, brian whatcott wrote:
Gilbert Smith wrote:
On the crosswind, all aviation videos (other than those taken standing
on the centre line) appear to show massive drift angles.

What sort of crosswind would require 10 deg of crab on an a/c of this
size ?

Ahem...
for an aircraft of ANY size, a 10 degree crab is required by an 18 kt
crosswind, for every 100 kts of approach sppeed.

But approaching aircraft are photographed by telephoto lenses - which
greatly exaggerate visual crab angle.

Brian W

Brian, you're not quite right, it's more nearly an inverse
relationship between crab angle and airspeed, angle increasing as air
speed decreases for a given crosswind. Think of the crab angle if you
flew a 100 kt pproach into a 100 kt xwind. You'd fly at 90 degrees to
the runway and have the shortest landing roll you can possibly have
and still have a useful airplane afterwards!

Of course, getting to your tie down would be a problem.