If it didn't die during the flight it is probably ok.  Big thing is to remove he battery as soon as possible after the flight.  The motor is fairly water proof. It should be ok.  The electronics doesn't like water and could be damaged.  The big thing is to let it dry out really well before you install the next battery.  Gentle heat from a hairdryer may be a good thing.  I would isolate the battery for a while in case it shorts out and catches on fire.  it depends on how clean the electronics was. That is, during the manufacturing process was all of the flux and dirt removed from the finished board. I doubt if any manufacture conformal coats a PCB as we did to military hardware when I was at work.  Water itself is not conductive.  It's dirty water that is conductive and can cause a short.  Good luck.  If you let it dry out before the next flight you should be OK.   

I doubt if any manufacture conformal coats a PCB as we did to military hardware when I was at work.

If you have Jeti Spin 66 from me, you can check marking on box which says "2x lak" that means it is twice coated against moisture. However it does not mean that nothing happen if shrink tube is filled with water. It is always good to shield from side of opening for motor cables from water, usually we seal it with silicone.

Motor is OK, it will run also submerged, but there is rusting iron  .. and of course timer has to be protected, it is not water proof.

I built a device like this, which works at 433mhz and is located between the Timer and the ESC and which can turn off the engine in an emergency.

 It works on any timer, Fiorotti, Burger, Rubin, KR, Climb an dive, etc.

We recently had 2 accidents with models completely destroyed when a bird attacked a model which caused it to fall and when a model suddenly turned on.

Just yesterday another bird attacked my model and collided with it, luckily the bird and the plane are fine.

I turned off the engine to see if there was any structural damage but all I found were marks from when my cat slept on the wing.

I would drop a little wd40 into the set screws on your motor. If you've ever seen a socket head rusted out you know what I mean.

MM

John and Doug,
I still want to do the cutoff for the IC engines too. To start I am thinking that the 4 strokes seem to handle the carburetor pretty well and would be easy to start with using a small servo and key fob. Could do start at idle, full power, cut off would be ideal.

Best,     DennisT

John and Doug,
I still want to do the cutoff for the IC engines too. To start I am thinking that the 4 strokes seem to handle the carburetor pretty well and would be easy to start with using a small servo and key fob. Could do start at idle, full power, cut off would be ideal.

Best,     DennisT

DENNIS

Any Timer can be used to turn off an IC motor.

 The signal produced by the timer is perfectly compatible with RC servos.The only drawback is that you need an external battery to power the timer and the RC servo.

You will only need the battery, the servo and a Y cable used in RC.You connect the base to the Timer, one of the arms to the RC servo and the other to a 4.8v battery, being careful to observe the polarity.

I made a short video and posted it in another Topic where I connected an ESC together with the servo to show that the same signal generated by the timer both controls an ESC and also controls an RC servo.

In this video I used my RF Timer that I sell here in Brazil, which can be configured with 2 speeds in addition to motor cutoff.


https://youtu.be/iYnw5_tu97s?si=p9Ecgpy-Pgl1yDA_