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Which of the following is not a retraction system for landing gear?

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in Aircraft Maintenance by (829k points)
Which of the following is not a retraction system for landing gear?

(a) Hydraulic retraction system

(b) Thermal retraction system

(c) Manual retraction system

(d) Electrical retraction system

This question was addressed to me during an online interview.

My question is taken from Fundamentals topic in portion Aircraft Fundamentals of Aircraft Maintenance

1 Answer

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Best answer
Right answer is (b) Thermal retraction system

The explanation: Aircraft retraction systems can be manually, electrically or hydraulically operated. However, there are no thermal retraction systems in aircrafts. The retraction systems are required to reduce drag.

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