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[Ben Tickle]

Hi,

I was just wondering what speed controller i would need for a graupner 500 GTX?

Thanks

B )en

[Martin (Admin)]

Any 25Amp should do.

Spec.
The GTX-500 is a development of the GTX-480 outboard motor. Motor power is transmitted to the propeller by a flex-shaft made of V2A stainless
steel, which is stronger than that used in the GTX 480. An adaptor is supplied in the set which also allows motors of the SPEED 480 size to be fitted, in addition to all SPEED 500-size motors.This versatile arrangement makes it possible to match the new outboard motor to the modellerīs requirements. The electric motor supplied with Order No. 2371 is powerful enough to give a good performance to small electric racing boats (e.g. RED ROCKET, Order No. 2194).The outboard motor is fixed to the model boatīs transom using 2 or 4 screws, and can be adjusted in height and thrust angle.

Length approx. 120mm
Width approx. 54mm
Height approx. 155mm
Weight excl. motor approx. 96g

[Ben Tickle]

Hi,

I was looking at buying:

 http://cgi.ebay.co.uk/ESC-30A-RC-Brushed-Motor-Speed-Controller-UK-/190441294353?pt=UK_ToysGames_RadioControlled_JN&hash=item2c572f8a11

What does everyone think?

Ben

[Martin (Admin)]

It shouldn't be needed with an outboard motor but I don't think that controller on ebay does reverse.
... and it is coming from Honk Kong so don't expect 'next day' delivery!

[Ben Tickle]

Hi,

The engine (Motor) isn't actually meant to go backwards because it has a flexishaft in it. Do you think it will be suitable?

Thanks

Ben

[Martin (Admin)]

In that case, yes, it should be suitable... just don't expect it to be a 'Rolls Royce' device... but you might get lucky!

[Ben Tickle]

Would you recommend this engine (Motor) on an M-tronics sport tuned 20 turn esc?

Thanks

Ben

[Martin (Admin)]

Yes, that looks a better controller.
http://www.mtroniks.net/details1.asp/ProductID/610/auto-sport-tuned-20.htm