I'm converting a plane to load the batt from the top and was wondering how to attach the canopy now, I want to use magnets but how? Also now that I have easy access to the batt compartment do I still need an external plug or can I just plug in the battery at the circle before I fly.
Thanks

Put a catch at one end if you are using magnets.  This way only one end is secured with magnets, the other is notched into place.  Putting a rubber band inside to add security and prevent fly-away might be a good idea too.

Phil

The idea of the external battery arming system is for safety. If there is a problem and you need to disarm in a hurry you won't be able to if there is a canopy in the way.

What is that design? It's pretty cool looking, from what I can tell. It would be cooler with IC power, of course!  Steve

Well, I've seen batteries fly out, ('lectric) motors fly out, batteries poop out in flight, models launched with batteries not charged, prop/collet fly off, batteries puffed up and burn, batteries puffed up but not burn, etc. ALWAYS a way to have things go wrong. With a new power system, you've got a lot of new ways to have problems. That's the way it is, and always will be! Wait until the new flash steam powered stunters come out...  Steve

I agree with Mark on this.A bolt may take 10 seconds longer to get the hatch on/off but it is far more secure.While judging scale at the Nats this year I asked a competitor if the magnets on his hatch worked well.Shortly after the first takeoff it departed the plane..........

I use these, they work fine provided that the hatch isn't holding anything in, i.e. you have a separate mount for your battery, and the hatch is just a cover.


http://www.hobbyking.com/hobbyking/store/__28767__Aluminum_Canopy_Lock_Latch_Spring_Loaded.html