Main Landing Gear strut minimum extension is how many inches?

• A. 2.0 inches
• B. 1.0 inches
• C. 1.4 inches
• D. 1.6 inches

Answer: (C)

Oleo main landing gear must have enough extended travel when the aircraft is on the ground with weight on wheels to absorb shocks and keep proper clearance for hydraulic lines and brakes during tow and taxi. The published minimum extension for the main gear strut is 1.4 inches, so the strut should show at least that much extension when the gear is down. Meeting or exceeding 1.4 inches confirms the strut’s hydraulic system is holding pressure and there’s adequate travel; less than that suggests a potential leak or other service issue that could affect handling during towing. The other values don’t match the required minimum, while 1.4 inches is the exact specification.