Secure throttle safety switch

With this mix the throttle can only be armed if the the throttle is at idle and the the throttle arming switch is off
You hold the trainer switch on for 1.5 seconds

L1 is only on if the the throttle stick is below 5% and the throttle arming switch is off

L2 is switched on by holding the trainer switch SH on for 1.5 seconds when L1 is on

This switches on L3, L3 will stay on until it is reset by SG ( sticky means latching)
It is reset to motor off by operating SG to up

The override is active when L3 is off, the negative function is used

The throttle will work when L3 and SF the throttle switch is on

This means you need a very deliberate action to arm the throttle.
to disarm this switch operate SG

In flight if you disarmed the motor you will need to set the throttle to zero, turn off the throttle switch, hold SH on for 1.5 seconds, turn on the throttle switch and open the throttle to get motor power.
This should stop accidental motor use in a comp, but could delay motor startup in an emergency. You could just use this at startup
This is very suitable for a power model

A sticky switch operating a timer

This is an example of how a sticky switch works

Switch L2 is turned on when the throttle goes past 25% with SF forward which is also used as the throttle arming switch

L1 is turned on by L2 and stays on until SF is switched on, this stops the timer, there is a 2 second delay on the timer
as flight times start when you let go

Timer 1 is started by switch L1 and stops when L1 has been switched off by SF

Timer 1 is reset by a function using switch SG

Oscillating Servo, for testing range and servos

A mix is used on a spare channel switched on by L1

L1 is a timer: 2 seconds on 2 secs off

Channel 10 is set to -50% sub trim

Mix channel 10 to the channel you want to use it on; disable before flying.