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Electric Stunt => Gettin all AMP'ed up! => Topic started by: Air Ministry . on January 13, 2018, 10:38:31 PM
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(http://www.retroplane.net/forum/images/uploads/gerard25/Vol_Circ_Elec_784.jpeg)
Of Course ELECTRIC is fine in O.T.S. , as long as it's the same vintage as the Aeroplane . ( Duck for cover Icon :o) VD~ S?P
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LOL LL~
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Make fun of it all you want the thing is i learned to fly with that type model back in 1986. So this dates even before that.
The principle was the same I had a tube PVC with 6D size batteries inside. the power was going to the handle which had a switch built in it.
I used copper wires I cannibalized from a electric motor they where tied to the handle and tied with w knot to the 1/16 plywood then routed in to the brushed motor. The wing was a 1/8 piece of flat balsa the stab was a 1/16 flat balsa with cloth hinges the push rod a 1mm piece of wire with a Z bend at both ends. the fuselage was a piece of spruce wood 3/8x1/16.
We made balsa props. The landing gear was a flat piece of aluminium with a 1mm wire through it and the wheels where corks from wine bottles.
It taught me how to land take off fly level some S flying and that was it. It might be a good project even for boy scouts to do.
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What happens when your flying wires touch?
The battery gets hot and you start doing a funny dance.
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What happens when your flying wires touch?
Electric motor copper wingdings have protective coating. They will not short.
Jim you are funny.
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Back 73/74 used a sheet J2 rubber job , with ' slot car ' set up .
Slot car motor , a propellor %^@ 20 litre drum full of rocks ( it rocked a bit LL~ ) slot car speed controller , and 12 V car battery or S. Car Transformer .
Two ball races on the stick got the electrickery thru , rotationally .
(https://cdn.instructables.com/FZK/QT1W/H8CVK88L/FZKQT1WH8CVK88L.MEDIUM.jpg)
This ones the same principle as the antique one ;
(https://cdn.instructables.com/FIT/BVXU/I2ELZF32/FITBVXUI2ELZF32.MEDIUM.jpg)
Thought a combination of the two ( three car batterys , 36 Volt for voltage drop on 60 ft lines )
Would be lighter than batterys in aeroplane .
Might need a third wire in case the lines shorted out .
At least the motor would stop if the lines melted .
And Wonders , a wheeled trolley for the batteries might make proceeds somewhat less arduous .
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Think Cox was the last one to put out a battery in the pants pocket powered U-control called the Cox F8F Bearcat Beetle Bomb. Found one on eBay:
https://www.ebay.com/itm/Cox-F8F-Bearcat-Beetle-Bomb-Electric-Control-Line-Model-Airplane/263431794236?hash=item3d55c22e3c:g:nvgAAOSwLjxaV-ij
#^
Found another:
https://www.ebay.com/itm/Cox-F8F-Bearcat-Beetle-Bomb-Electric-Control-Line-Model-Airplane/132468707491?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649
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ARGH ,
but say you had a trolley three car batteries , or a truck battery or two , and a whirly connector head thingo , you could drag out into the center to get enough grunt for one of these modern fancypants motors .
What do batterys in the plane weigh nowadays ?
It'd be that much lighter . Unless it started raining . :o zzzzzzzzzzzz spark . electricity noises . :P :-\
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Hello Matt Back in about 1980 I used the Aeromodeller plan for a Cosmic Wind 'round the pole' model and modified it to include a bellcrank. Used enameled copper wire and motorcycle batteries in a back pack and we flew it a lot . Even some of the neighborhood kids had a go when I flew it in the local park .
Modern batteries mean nobody will bother now with power down the lines as resistance is to high to get meaningful watts coming out of the lines without dangerously highy voltages . Don't like to admit it as I love caster oil and internal combustion engines but those electric models have a lot going for them now especially when they seem to win all the events here in NZ now! I may build Paul Delgatte B25 stunter and would be tempted to use electric so I could fly scale at the Nats with 2.4ghz throttle control . (Electric models won both F2B and C/L Scale at our Nats in January)
Regards Gerald
Motors= https://hobbyking.com/en_us/turnigy-g25-brushless-outrunner-870kv.html
Battery= https://www.hobbycity.nz/collections/lipo-batteries/products/5200mah-4s-60c-lithium-ion-hv-battery