0 the landing-gear of an aircraft -- โครงส่วนล่างของเครื่องบิน
The pilot had some difficulty in lowering the undercarriage.
The robot is 5 metres long, 4 metres wide and 1.5 metres high, with the rotor 2.5 metres in diameter and the undercarriage retractable.
The whole machine can move forward or backward on its tracked undercarriage.
I noticed a blackbird's nest in the undercarriage.
Subsequent investigation revealed that the aircraft had struck the leading edge of the runway with sufficient force to remove the main undercarriage.
In 1935, there came the pattern of commercial aircraft that we know to-day, with stressed-skin wings, retractable undercarriages and variable-pitch propellers.
Every new type which comes into service either lands with its undercarriage up or overshoots or undershoots.
We should have an aero-dynamic animal, with the one difficulty that the undercarriage could never be retractable.
The pilot raised the undercarriage and the aircraft skidded to a halt.
