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Airplane Flying Handbook
Transition to Complex Airplanes
LANDING GEAR SYSTEMS

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Airplane Flying Handbook

Preface

Table of Contents

Chapter 1,Introduction to Flight Training
Chapter 2,Ground Operations
Chapter 3,Basic Flight Maneuvers
Chapter 4, Slow Flight, Stalls, and Spins
Chapter 5, Takeoff and Departure Climbs
Chapter 6, Ground Reference Maneuvers
Chapter 7, Airport Traffic Patterns
Chapter 8, Approaches and Landings
Chapter 9, Performance Maneuvers
Chapter 10, Night Operations
Chapter 11,Transition to Complex Airplanes
Chapter 12, Transition to Multiengine Airplanes
Chapter 13,Transition to Tailwheel Airplanes
Chapter 14, Transition to Turbo-propeller Powered Airplanes
Chapter 15,Transition to Jet Powered Airplanes
Chapter 16,Emergency Procedures

Glossary

Index

Retractable landing gear inspection checkpoints.
Figure 11-10. Retractable landing gear inspection checkpoints.

On other airplanes, release of the uplock is
accomplished using compressed gas, which is directed
to uplock release cylinders.

In some airplanes, design configurations make
emergency extension of the landing gear by gravity
and air loads alone impossible or impractical. In these
airplanes, provisions are included for forceful gear
extension in an emergency. Some installations are
designed so that either hydraulic fluid or compressed
gas provides the necessary pressure, while others use a
manual system such as a hand crank for emergency
gear extension. [Figure 11-9] Hydraulic pressure for
emergency operation of the landing gear may be
provided by an auxiliary hand pump, an accumulator,
or an electrically powered hydraulic pump depending
on the design of the airplane.

OPERATIONAL PROCEDURES PREFLIGHT
Because of their complexity, retractable landing gears
demand a close inspection prior to every flight. The
inspection should begin inside the cockpit. The pilot
should first make certain that the landing gear selector
switch is in the GEAR DOWN position. The pilot
should then turn on the battery master switch and
ensure that the landing gear position indicators show
that the gear is down and locked.

External inspection of the landing gear should
consist of checking individual system components.
[Figure 11-10] The landing gear, wheel well, and
adjacent areas should be clean and free of mud and
debris. Dirty switches and valves may cause false
safe light indications or interrupt the extension cycle
before the landing gear is completely down and
locked. The wheel wells should be clear of any
obstructions, as foreign objects may damage the gear
or interfere with its operation. Bent gear doors may
be an indication of possible problems with normal
gear operation.

 

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