redelk
Moderator
Please... speak to the hand.
Posts: 3212
|
posted August 29, 2005 06:26 PM
OT - Crabbin' jets and brake control
http://www.linhadafrente.net/bin/Pousos.wmv
____________
There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.
-Ernest Hemingway
   
|
fish_antlers
Administrator
The Truth is Out There
Posts: 21895
|
posted August 29, 2005 06:30 PM
wow!!!!
|
pdb1964
Zone Head
Posts: 536
|
posted September 01, 2005 12:13 AM
Pretty wild stuff.
|
frEEk
Administrator
ummm... yeah
Posts: 9660
|
posted September 01, 2005 09:22 AM
wonder how hard that actually is to do? any pilots here care to comment?
|
pdb1964
Zone Head
Posts: 536
|
posted September 01, 2005 09:59 AM
 Edited By: pdb1964 on 1 Sep 2005 11:01
It is easier to crab and land that way. To follow the approach path that is lined up with the runway during a crosswind, you will end up crabbing. The aircraft will have to be pointed into wind to compensate for the drift that you would otherwise get. If you don't do anything to change this attitude, you will land with crab on. Larger aircraft and/or aircraft will low wings will kick in some rudder just before touchdown to line the aircraft with the runway. Doing this close to touchdown will minimise the amount of drift downwind. Smaller aircraft can use a combination of into wing down and rudder to compensate for drift. The rudder is used to line the aircraft with the center line and wing down will prevent the aircraft from drifting downwind. You use this technic further back from touchdown. This methode had the benefit of having less things going on just prior to touchdown, attitude wise (flaring and kicking in rudder at the same time). The disadvantage of the wing down methode (cross controlling) is the increase in drag and for low wing, the possibility of dragging the wing tips on the ground.
|
matt sterbator
Pro
Hiding in the bushes
Posts: 1367
|
posted September 01, 2005 10:41 AM
Yeah, you land like that in a small airplane and you'll quickly find out how the off runway handling qualities are, lol.
After being explained numerous times, I just couldn't understand the wing low method... until one day during some solo touch and go's, I landed while still in a crab attitude and about found out how well a Piper Warrior will off road. I quickly learned the wing-low method, and learned it well, lol.
Flying the approach crabbed like that is almost natural. It's over the runway, in the flare and setting it down where the fun begins.
|
your car is slow
Needs a job
Fuck Nitrous...Got Boost?
Posts: 4089
|
posted September 01, 2005 10:48 AM
Perhaps im wrong...but dont both those aircraft (the 777 and 747) have the ability to adjust the direction of the main landing gear to compensate for that sort of yaw on landing?
Id love to see the same sort of shots of an MD88...or 737ish style plane do that....yikes.
Really wish you got an idea of the scale of both of those planes in those shots....very impressive.
____________
Do not taunt happy fun ball!
|
pdb1964
Zone Head
Posts: 536
|
posted September 01, 2005 11:26 AM
i don't think they have the directional gear but I might be wrong about that. I've only seen that on the big military transports but the 777 and 747 are big aircraft. I think it is designed the side loading and momentum keeps them on the runway
|
|
|
HOME
NEW TOPIC