[s-cars] Fw: Watch Narrow escape
CaptMagu at aol.com
CaptMagu at aol.com
Tue Mar 4 08:10:26 PST 2008
Jerry, Joe, Calvin and Tom
I am typically reluctant to chime in about fellow pilots but I just have to
say a few words. First of all, if the pilot scraped a wing during the attempt
to land then he is at fault period. No matter what the tower was reporting the
winds to be, only the Captain on board the aircraft is held responsible for
his or his copilot's actions.
Second, the reaction of the aircraft to the pilots inputs were very
predictable. There are a myriad of reactions that a swept wing turbine goes through
when landing in a crosswind. I won't bore everyone to death but the maneuvers
that were botched were the de-crab and the flare for landing. In the de-crab
the pilot transitions from an angled approach to a wing low attitude while
alligned with the runway. This puts the aircraft in a wings level slip with, in
this case, left rudder and right aileron inputs to keep the aircraft going down
the centerline of the runway. This also creates a big increase in drag with all
these control surfaces deployed. This extra drag can cause a pilot to
actually add power for landing. If he doesn't he starts to drop and that further
exacerbates the next challenge while flaring for the landing.
During the flare, there is a positive change in attitude to transition from a
descnding glide slope angle to a level attitude for landing. If there is a
crosswind present, then the upwind wing, the right wing in this case, has a
higher angle of attack because of the apparent wind going over that swept back
upwind wing that creates extra lift. That's what happens as that right wing lifts
up and he drags the left wing tip. The same diferential of lift can happen as
the crosswind component changes while the angle or intensity of the crosswind
changes.
This is a simple case of the pilot getting behind on his aircraft control. He
should have strated his goaround earlier or he should have diverted.
Hap, wit moh dakine landings than he can remember not from Evahboost, Maguire
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