Different Types of Landing Gear

Tail Wheel-Type Landing Gear

·         Conventional landing gear

·         Located forward of the center of gravity

·         Require wheel support under the tail

·         Angle of aircraft allows for the addition of a propeller

Tandem Landing Gear

·         Main gear and tail gear are aligned on the longitudinal axis

·         Commonly used by sailplanes

·         Permits use of flexible wings for aircraft

Tricycle-Type Landing Gear

·         Allows for more vigorous braking without a resulting nosedive

·         Enables faster landing speeds

·         Better visibility from flight deck

·         Prevents ground-looping

Fixed and Retractable Landing Gear

·         Fixed

o   Usually used on small, single-engine aircrafts

o   Gear is attached to the airframe, always in an extended position

o   Can cause parasite drag due to air resistance

o   Pilots can use to their advantage when needing to slow aircraft down

o   Wheels are most commonly used –skids, skis and floats can also be applied

·         Retractable

o   Stowed in fuselage or wing compartments when not in use

o   Eliminate parasite drag, reduce air resistance

o   Add additional weight to aircraft (on aircraft that are already slower, the penalty of added weight overcomes any parasitic drag, and fixed gears are used instead)

Leaf-Type Spring Gear

·         Non-shock absorbing struts

·         Made from composite materials

·         Lightweight and flexible

·         Non-corrosive

Rigid

·         Cause direct shock on the airframe

·         Rough landing for passengers

·         Pneumatic tires help soften landing impact

Bungee Cord

·         Allows the strut assembly to flex upon landing

·         Bungee cords are positioned between the landing gear and airframe structure

·         Transfer landing loads to airframe instead of landing gear

Shock Struts

·         Self-contained hydraulic units

·         Most common method of landing shock dissipation

·         Support aircraft while on the ground

·         Protect structure during landing

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1. anthony cordle
2. Posted on July 16, 2018
aircraft

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