How to Walk Free From Any Crosswind Landings
I had been recently inquired on the chance of a wingtip strike when landing in the typical light plane being a Cherokee or simply a Cessna 172. Specifically, I was inquired on how far that aileron control might be deflected without striking the tarmac when either from the main landing gear is about the runway after landing at near stall speeds.
I am going to admit I always haven't ever attempt to hit the runway with my wing tip I do not know those who have. However, it certainly can be carried out. Maybe a better question is: what landing technique means that that this wingtip will not strike the tarmac in the crosswind?
I want to speak about landing approaches to quite a strong crosswind before I tackle the case of wingtip strikes. in spite of everything, wingtip strikes aren't a reputable issue except in crosswinds that approach the airplane's crosswind limitations.
To make controlled crosswind landings, you should master the skill of pointing your airplane in the same direction that it moves over the ground. If the airplane is pointed in some other direction when you touchdown, the best you can hope for is abrupt side forces on your landing gear followed with a swerve as the airplane swings in the right direction. The worst is loss of directional control followed with a trip off the side of the runway, possible ground loop, nose over, wingtip strike, or all of the above.
Pointing the airplane it the direction it moves is the most essential landing skill. It is not as easy as it sounds. And it certainly requires practice before it can be mastered. In a nutshell, here is how to do it:
Point the airplane in the direction that it travels by turning the nose with your rudder pedals alone. Move the airplane from side to side by changing your angle of bank with ailerons. Control airspeed or height above the runway by changing your pitch attitude with your elevator. This lets you keep your wheels pointed in the direction the airplane moves and keep your airplane directly over the middle of the runway. This is exactly where you should be when you land.
Landing in a crosswind, you touch the runway while cross controlled. It's much steady state condition. Your airplane will not be rolling around its long axis. In other words that this provides a steady angle of bank. In a general aviation, production light plane, you can not cross control far enough to the touch the wing tip.
The process that works best is to try to try to keep the downwind main wheel barely off the runway providing possible when you have touched down with all the upwind wheel. To hold the downwind wheel off, you have to continuously increase aileron control defection until it reaches its limit. Eventually, since the airplane will continue to decelerate, the ailerons lose power as well as the other main wheel will settle towards the runway.
Finally in almost any well executed crosswind landing, the aileron control will probably be pushed to its limit. An essential point here is, that just like every other benefit with good airmanship, you should move your controls smoothly to provide a source reason for changing the airplane's attitude. Easy roll will be the only situation where I deliberately move the controls violently.
Now, back to the subject: how might you strike a wingtip? I can think of two ways.
Suppose you suddenly and violently slapped the aileron control all the way to its limit. Two things would happen: the airplane would no longer be properly cross controlled, and it would start to roll. Now it is possible to strike the wingtip. In other words, you would have just fouled up a perfectly good crosswind landing. You would have put the airplane in a very difficult situation, one that would require a particularly skilled pilot to salvage. I don't recommend it.
A lot more likely situation is that you simply land wings level from a strong crosswind. This means, not cross controlled. Here, the airplane is crabbed within the wind along with the wheels aren't aligned together with the airplane's path above the ground. Since the airplane will not be aligned using its path through space, the wheels will generate a quite strong side ways force on the undercarriage once they touch the runway. With luck, this makes a sideways skid. Much like in a vehicle, should the wheels are far enough apart, the airplane skids until it either stops or straightens up. If for example the wheels won't be far enough apart, you're unlucky. The airplane rolls over, striking the ground utilizing its wingtip.
The lesson is: use proper crosswind techniques and you may not have to bother with wingtip strikes.
Doug Daniel, long time flight instructor, invites people to visit http://PrivatePilotTrainingOnline.org for further flying articles like this one. You may as well contact Doug by visiting his website.










