The invention provides a monitoring method for preventing an airplane landing gear from being not locked during landing. The monitoring method is characterized in that put down switch signals of three landing gears of an airplane are connected in series to form an airplane landing gear put down signal; compared with the normal standard time of releasing the landing gears of the airplane, if the landing gear releasing time is shorter than the standard time, no alarm is sounded, and the airplane is landed normally; if the landing gear releasing time is longer than the standard time, an alarm is sounded to remind a pilot of abnormality of landing gear releasing, and the pilot is necessary to put the landing gears away and then put the landing gears down until no alarm is sounded during releasing of the landing gears of the airplane; the airplane can be landed normally.
Monitoring method for preventing airplane landing gear from being not locked during landing
2015-11-25
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
NTRS | 1931
|Engineering Index Backfile | 1931
|TIBKAT | 1931
|Engineering Index Backfile | 1943
Retractable Airplane Landing Gear
NTIS | 1969
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