The new desing of the nose landing gear retraction mechanics requires the installation of a lock to keep it in the up position. Looking around for such a locking mechanism didn’t bring up anything usable. They all were either too heavy, too weak, only electricly activated or prohibitively expensive. I was left with the only solution to build one myself, based on a patent drawing found on the internet.
The lock latches mechanicly when the gear reaches the up position. A proximity switch signals the fully latched position.
The opening of the lock works through a pull wire connected to the landing gear lever in the cockpit which releases the gear.
All parts are designed to carry the maximum expected hookload of 270kg by factor 1.5.
2 thoughts on “Nose landing gear update 5”
Schöne Arbeit. Eventuell ein 2. Feder addieren, falls das eine bricht. Kommt mal vor.
Danke für den Hinweis Kent.
Alle Federn sind doppelt ausgelegt. Die zweite Feder ist auf den Bildern abgedeckt. Die Möglichkeit eines Federbruches ist somit aufgefangen.