Funcup as towplane - RC Groups
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Feb 28, 2012, 11:25 AM
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SpeedsterDEN's Avatar

Funcup as towplane

You do not have to spend a fortune on a towplane.
A Multiplex funcup do it really well.
With a few improvements, and the right engine setup its a great little towplane.

1. Better motor mount.
2. Stronger towhook, fixed with wire around the mainspar, or else it will be pulled out of the wing
(The original is ok for small foam gliders)
Then your ready.

Incredibly easy to fly, and worth every penny.

My setup is:
Turnigy Aerodrive SK3 - 3542-1185kv

13x4 prop

100 Amp ESC

4 cell 4000 Mha 40 c battery.

It pull 75 Amp 1200 Watt.

And it pull my 3,1 kg 3,20 meter F3b all GFK glider, - 3 meter Fox, - 3,6 meter Nimbus from the ground.
or 4 foam gliders at a time.

I Think this is max size gliders for the funcup.

For saving the motor, I only use full power at the first few second of the take off.

3,6 meter Nimbus.
Funcup towing a 3,6 meter glider (0 min 30 sec)

The next videos was with a smaller motor

Funcup towing fun. (1 min 54 sec)

Funcup towing disaster. (1 min 46 sec)

Scratchbuild Fox first flight. (1 min 10 sec)

FOX fly by
Flyfly Fox fly by. (1 min 33 sec)

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Mar 26, 2012, 01:49 PM
DS will change your life
SpeedsterDEN's Avatar

More Funcup towing

Motor is now:

And its doing a great job, and dont even get hot when towing.
Still 13x4 prop and 4 cell 4000 mha battery + 100 Amp ESC

Funcup towing 3 meter gliders (1 min 26 sec)

Apr 04, 2012, 05:03 PM
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SpeedsterDEN's Avatar
FunCup towing 3,3 meter glider (0 min 47 sec)
Apr 22, 2012, 10:56 AM
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SpeedsterDEN's Avatar

Amp draw

Amp drop in flight compared to static test.

Rc. Amp draw, static / flight (1 min 40 sec)

Static 73 Amp og 1075 Watt
Flying 56 Amp og 839 watt

Bonus Trailer video
RC Funcup go pro. (1 min 42 sec)

Apr 25, 2012, 03:26 PM
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SpeedsterDEN's Avatar

Funcup,double glider towing.

My Funcup towing a 1,1 kg 2,4 meter Speedster, and a 2,3 kg 3,2 meter F3B Trinitus in double towing.
Set up is Motor Turnigy 4250 Brushless Motor 1000kv :
ESC: 110 AMP prop
Batt 4000 Mha 4 Cell:
Servos all HXT 900.

Funcup, towing 2 large gliders. (1 min 44 sec)

Nov 19, 2012, 08:18 AM
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SpeedsterDEN's Avatar


Funcup towing a 4,85 meter glider. (0 min 54 sec)

Funcup towing 4 meter Simprop Solution. (1 min 27 sec)

Glider towing with Multiplex Funcup. Due to heigh grass and soft ground + the heavy 4 meter glider, the towplane needed a little start help.
Normal procedure is that the helper runs to the side, but when he saw we were filming he got the stupid idea to throw himself to the ground. Fortunately, the glider took off at the last second.

Imagine him at the hospital with a 4 meter glider stuck, where the sun dont shine

RC glider towing, start help. (0 min 24 sec)

Last edited by SpeedsterDEN; Nov 19, 2012 at 10:35 AM.

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