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Electric Stunt => Gettin all AMP'ed up! => Topic started by: Dwayne on July 15, 2016, 01:24:56 PM

Title: Converting to a top loader
Post by: Dwayne on July 15, 2016, 01:24:56 PM
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
Title: Re: Converting to a top loader
Post by: Mark Scarborough on July 15, 2016, 01:43:53 PM
I personaly dont care for magnets, to get enough magnets to resist the cooling airflow pressure buildup inside makes it very hard to get off IHMO
your mileage may vary
I prefer a pin and a 4-40 machine screw,or two machine screws
Title: Re: Converting to a top loader
Post by: Phil Krankowski on July 15, 2016, 02:00:05 PM
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
Title: Re: Converting to a top loader
Post by: Crist Rigotti on July 15, 2016, 02:15:07 PM
Here.

http://stunthanger.com/smf/gettin-all-amp'ed-up!/2016-electric-stunter-build-log/msg434048/#msg434048
Title: Re: Converting to a top loader
Post by: Russell Bond on July 15, 2016, 05:15:38 PM
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.
Title: Re: Converting to a top loader
Post by: Dwayne on July 15, 2016, 06:02:03 PM
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.

Ah, gottcha,  I will install one.
Thanks  y1
Title: Re: Converting to a top loader
Post by: Steve Helmick on July 16, 2016, 08:51:59 PM
What is that design? It's pretty cool looking, from what I can tell. It would be cooler with IC power, of course!  ;) Steve
Title: Re: Converting to a top loader
Post by: Dwayne on July 16, 2016, 09:08:33 PM
What is that design? It's pretty cool looking, from what I can tell. It would be cooler with IC power, of course!  ;) Steve

A bashed Legacy of my own design.
Funny you should mention IC. While going through my pipe woes I more than once wished it was electric.  LL~
Title: Re: Converting to a top loader
Post by: Steve Helmick on July 16, 2016, 11:27:54 PM
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...  LL~ Steve
Title: Re: Converting to a top loader
Post by: Russell Bond on July 17, 2016, 09:14:53 PM
 S?P
Title: Re: Converting to a top loader
Post by: Jeff Traxler on July 19, 2016, 07:29:56 AM
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..........
Title: Re: Converting to a top loader
Post by: Dwayne on July 19, 2016, 08:46:22 AM
Thanks for the replies
After much hmming, pondering, and racking my feeble brain  n~ It was just easier to go the dowel 4-40 route 
Thanks again y1
Title: Re: Converting to a top loader
Post by: Curare on July 24, 2016, 10:23:46 PM
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

Title: Re: Converting to a top loader
Post by: FLOYD CARTER on August 04, 2016, 02:58:36 PM
I use tiny "Rare Earth" magnets from Radio Shack.  Match them in pairs-one on the hatch and a matching magnet on the fuselage.  You have the extended power of two magnets really locked together!  Adding guides about 1/2" long, it simply doesn't get loose!

Floyd