AOPA Pilot Magazine - June 2014 - 86

P&E

TECHNIQUE

Thus, the tricycle-gear airplane doesn't
ground loop, but it sure can tip over toward
the unprotected front quarter. The classic tricycle taxiing incident occurs with
a strong tailwind and a fast turn entry;
inertia and wind force the airplane to the
outside of the turn, the inside tire leaves
the ground, and the wind gains more purchase under the raised wing. The propeller
blades may slash into the pavement and
the outside wing tip can scrape, perhaps
bending the main spar. These are expensive repairs, even though no one is hurt.
The more serious tipping mishap takes
place during a landing, when the airplane's
longitudinal axis isn't kept pointed in the
direction the aircraft is traveling. A still-

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Going around
is always a wise choice,
using what you've learned
to improve
your chances on the
next attempt.
flying airplane is supported by air, and if
the air is in motion across the runway centerline, it will carry the airplane with it. A
pilot's tendency is to focus on the receding strip of pavement that's the object of
his desire, and he steers back toward it
with aileron and rudder inputs. Now the
airplane is about to touch down with its
friction-inducing tires misaligned with
the direction of travel-which happens to
be toward that unsupported front corner.
The prudent pilot sees that this isn't
right and will go around, or buy some time
by adding power to forestall the touchdown until he has brought the nose of
the airplane back into alignment with the
runway, adding upwind aileron to stop the
drift that began this chain of events. Power
returned to idle, the landing takes place on
the upwind main gear before the airplane
settles onto the downwind tire and, eventually, the nosewheel.
Uncorrected, the airplane hits in a
crabbed condition and tips toward the
direction of travel, the propeller chopping into the runway as the tail and wing
86 | AOPA PILOT June 2014
http://www.sandia.aero http://www.sandia.aero http://www.aviationseminars.com/pilot http://www.sigtronics.com
AOPA Pilot Magazine - June 2014

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