60020E Electronic Door Sequencer for Electric Landing Gear

The design concept and specifications of this sequencer was Century Jet Models.

This module provides you realistic electric gear operation where the gear doors stay open when the gear are extended or closed after the gear is extended.  Time varies from 3 to 12 seconds…you set the time!

Designed for models that have electric retracts and gear doors, this circuit will allow you to sequence the action of the retract controller and gear doors for proper timing and operation.  All the functions of this circuit can be adjusted to make it customizable for almost any model, including the direction (up or down) of the signal sent to the retract controller, the delay between the cycle of the controller and the movement of the gear doors, and whether or not the gear doors remain open after the gear are down, or close back up until the command to raise the gear is received.  In addition, the speed of the gear door servo is reduced for more scale-like movement, and to make the timing of the functions easier.  Plugs into a single channel in your receiver, and connects to both the retract controller and the gear door servo(s).  Can be used for multiple gear door servos by using a common servo Y.

Small, compact, and easy to set up, this is a great way to solve the problem of gear door sequencing without having to use multiple channels in your receiver and/or complicated programming of your transmitter.