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Electric Stunt => Gettin all AMP'ed up! => Topic started by: Dwayne on March 18, 2017, 07:25:59 AM

Title: External arming plug
Post by: Dwayne on March 18, 2017, 07:25:59 AM: Hi all
Has anyone tried using a 1/8th in. jack as a arming plug? I was thinking about counter sinking the female on the bottom of the plane.
Thanks
Title: Re: External arming plug
Post by: John Tate on March 18, 2017, 09:20:49 AM: Not much surface contact there. I do not think you can get enough current to go thru that connector to be effective.
Title: Re: External arming plug
Post by: Carl Cisneros on March 18, 2017, 01:25:00 PM: Too little surface contact area there.
Connection will go over the top temperature wise big time.
Title: Re: External arming plug
Post by: pmackenzie on March 18, 2017, 03:28:54 PM: As the others have said, just not enough current carrying capability.
The other thing is that you don't really want to "hide" the arming plug.
The whole point is that it is clear where it is and what it does.
Title: Re: External arming plug
Post by: Motorman on March 19, 2017, 12:41:31 PM: blank
Title: Re: External arming plug
Post by: Tim Wescott on March 20, 2017, 07:36:27 PM: Not nearly enough current carrying ability, by far.
Title: Re: External arming plug
Post by: Phil Krankowski on March 21, 2017, 04:19:50 PM: Works just great on one of my gliders. I'm driving 4 tiny servos and the RX. Doubles as a charging port. I have a four 1/3AA Nimh battery pack installed.

Probably pretty light for most other purposes.

Phil
Title: Re: External arming plug
Post by: Howard Rush on March 21, 2017, 05:45:41 PM: Quote from: Dwayne Donnelly on March 18, 2017, 07:25:59 AM
Has anyone tried using a 1/8th in. jack as a arming plug? I was thinking about counter sinking the female on the bottom of the plane.

Quote from: Motorman on March 19, 2017, 12:41:31 PM
I'd have to think the first pull out the plug would go right in the ground.

It might work, but if folks are correct about the current capacity, the plug might weld itself to the jack. It would then be hard to disassemble, because the nut on the jack wouldn't come off past the plug. The good news is that the plug wouldn't fall out when you pull out of a wingover, as Motorman feared.
Title: Re: External arming plug
Post by: Phil Krankowski on March 22, 2017, 02:11:43 PM: Quote from: Howard Rush on March 21, 2017, 05:45:41 PM
It might work, but if folks are correct about the current capacity, the plug might weld itself to the jack. It would then be hard to disassemble, because the nut on the jack wouldn't come off past the plug. The good news is that the plug wouldn't fall out when you pull out of a wingover, as Motorman feared.

This is correct. With a "switched" jack when the plug is removed the contacts are in bypass internally, connecting and turning on the circuit. With the plug removed the circuit is through the jack instead, allowing for charging.

This might be the thing for some OTS ignition engines with rechargeable batteries. Plug in the charging cord disconnects the battery from the circuit. This is the same as my use with my glider.

Phil
Title: Re: External arming plug
Post by: Mark Scarborough on March 22, 2017, 02:54:25 PM: There are single pin plug and jacks that can carry the current, they are used on the motor and ESC connection typically
Title: Re: External arming plug
Post by: FLOYD CARTER on March 23, 2017, 06:07:54 PM: The bestest and cheapest is the Deans Ultra Plug (large 2-pin red ones). A 16 ga. wire loop makes it easy to see and easy to pull out.