Bertie the Bunyip wrote:
Dudley Henriques wrote in
:
Bertie the Bunyip wrote:
Dudley Henriques wrote in
:
Bertie the Bunyip wrote:
Dudley Henriques wrote in
:
Bertie the Bunyip wrote:
Dudley Henriques wrote in
:
Bertie the Bunyip wrote:
wrote in
:
We had a couple of very windy days over here in Europe.
Look at a crosswind landing of an A320 at HAM, a near crash:
http://www.liveleak.com/view?i=ddb_1204404185
Nice pic:
http://www.airliners.net/uf/view.file?id=536882887
&filename=phpOltUWB
.jpg
Next time someone tries to tell you that airliners just "kick
it straight" when they land, like this guy did, show em this...
Bertie
I just sent this out this afternoon to our human factors people
as an example of how deeply a pilot has to fly into a problem
before realizing it isn't going to solve using existing control
authority. Absolutely amazing! This guy is on the way to a memo
from the Chief Pilot's office fairly soon I would imagine.
Glad they made it out of there.
Well, he doesn't appear to have made any effort towards putting
the wing down at all. Not his fault.He was obviously never taught
how to do a crosswind landing properly. You'd be amazed at how
many airline pilots beleive that this is the way to do it...
Mostly, they get away with it. The crosswind doesn't appear to be
all that bad. From the drift angle, I'd reckon the max compnenet
to be under thirty knots and steady. Well within the airplane's
capability. He wasn't realy in trouble until the flare.
Bertie
Bertie
I don't have the official wind figures, but I would make the wind
offset with gust factor well outside his capabilities.
Doesn't look like it to me. Most moderns are demonstrated at 40
knots. Even the older ones can do 30 or 35 with no problem, and
that;'s just the demonstrated. The 757 is easy, and I mean really
easy, in winds approaching 40, although it's easy to get a PIO
going with the ailerons in turbulence in it. If the other poster's
info is correct, it shouldn;t have come to what it did. I dont see
any effort on the pilot's part to put the right wing down at all.
Having said that, it's a 'bus and it might not have allowd the
pilot to do what he wanted to.
In any case, crossposting his wasn't to make the crw look foolish.
I just thought the video neatly illustrated the dynamics of a
crosswind landing gone wrong very nicely, whatever caused it. A lot
of people use a similar technique and, close to the limit, it will
end up looking pretty much like this...
Bertie
I'm sure your right. After all, you look at this stuff in heavies
all day long. I landed a DC8 once as a guest of the airline (a
charter op). Man, what a handful THAT thing was!! :-)
I read this guy's approach as bad from around the middle marker (or
where it would be) inbound. Looked like he flattened it out too high
which had to cost him some airspeed and maneuvering energy. I agree
on the wing. Didn't look good to me either.
No, looks good all the way to the runway as far as i can see, He
seems to be tracking the runway alright. One burios thing they do in
modern busses is to set the vref into the magic boxes and that
commands a constant groundspeed during the approach. Sounded crazy to
me when I first heard of it, but the way it works is that the
airplane automatically bleeds off speed as the wind diminishes during
descent. even hand flown, the flight director would have been
commanding this speed. I t has nothing to do with the way thr
airplane was flown in the last few seconds, but it shows the kind of
precise guidance they were getting to that point. He may have been
doing an auto approach, in fact, which could expalin a lot as the
transition form autoflight to manual can be messy, particularly in
wind. Never flown a DC8, but with those old tab controls, it was
probably a million miles away from the fighters and Pitts' you flew!
You'd find the 757 more to your liking,. It flies like a light twin
and the ailerons are VERY responsive. In fact in that compilation
video I posted you can see one going around and rocking like crazy.
That's a PIO.
Bertie
The approach I shot in the DC8 was into Fairbanks Alaska. Very windy
that day and I flew the approach manually....well, manually on a
Collins FD109 FD anyway. You're right about the difference in
airplanes. I had flown the bird up there from the left seat so was
fairly familiar with the control response, but of course that was at
cruise mach. When I slowed the damn thing down for the approach, the
lead time to correct changed accordingly and it was a guessing game
each time I corrected. I cheated a little and ruddered it rather than
use bank that seemed hard to control to me. Anyway, I got it down in
one piece without bending it. Had the Chief Pilot of the line in the
right seat of course, but he had already told me that unless I got it
critical somehow it was all mine to solve.
Great airplane the DC8. I'll tell you the truth though. I was damn
glad to feel those mains on the pavement. Those guys knew me pretty
well and I didn't want to embarrass myself in their big bad airplane
:-))
You were obviously well able to keep it inside his comfort zone. Don't
forget , neophytes get to fly these things all the time, so they're well
used to teaching people on the job. It's one jet I realy would liked to
have gotten a chance to fly. It's very different from almost everything
else flying in a lot of ways.
About PIO; you should see the trouble in pitch a novice can get into
in a T38.
It can get so bad you have to let go and let it phugoid out . There's
absolutely no way a first timer could counter it. If it happens low
enough on approach it can spell REAL trouble.
Great airplane though. Makes me wish I could do it again :-)
Someting else I'd love to try! I never found the sensitive ailerons to
be a problem. Most of the problem, as you know is the deah grip on the
stick. I've started them off in turbulence, but dampened them out just
as quick by relaxing my wrist ( there you go ken, an opeing for a gay
lame)
Bertie
The 8 was great as long as you led the thing by about 3 seconds in roll.
It seemed like a drunken whale to me for the first few turns. Then I got
it down pretty well and led it correctly.
I guess the new stuff is much improved as you say. Sounds like fun
anyway :-)
The Pitts is a good airplane to teach sensitive control in pitch. I
always had them put their thumb on the back of the stick and just their
index finger in the front and fly it that way for a whole hour. After
doing that, they could fly with the wrist relaxed a bit better.
The first time a newbie climbs into a Pitts and tries a takeoff, I
always had them hold it on a bit longer before rotation. The extra speed
would really come into play when they rotated. With any luck at all, you
could get at least 200 feet out of it before they knew what hit them.
I'd have my hand in back of the stick to catch it just in case :-))
One lesson like that was usually enough to solve the PIO issue.
--
Dudley Henriques