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[howie55]

Hi I am also fitting a working prop to the schooneer as an after thought, it was going to be sail only , but after watching a guy rescue his yacht from a weeping willow in the middle of a lake by wading waist deep in freezing water I thought I might need power at some stage.
I have been told using a servo to change the wiring direction so that you can get forwards or reverse on the motor is not correct, and that I should be using a speed control, can it change motor direction?
and what would the curcuit diagram look like, and what parts  would I need to buy including the motor to drive my 52"schooner.
I might be able to build the schooner but electrics are beyond me
grateful for any help I can get

[The Antipodean]

First thing you need to do is have a look at some speed controllers, here is a good start.  http://www.action-electronics.co.uk/home.html

Next thing you need to do is find people like FLJ, the man is a mine of information and has helped not just me but many others here with niggly little electrical issues.

I can definitely undrstand the reluctance to wade waist deep in icy water, brings back nasty memories of river crossing training in glacial rivers back in the enlisted days.

[DickyD]

As our Kiwi friend says, have a word with Dave at ACTion Electronics [ Full Leather Jacket on here] he will sort you out.

[howie55]

thanks guys for the information plenty to look and absorb, still not sure how these speed controllers can change motor direction though
regards Geoff

[FullLeatherJacket]

http://www.action-electronics.co.uk/pdfs/ESCs.pdf
 
FLJ

[nemesis]

 Hi All you need is a servo & two micro switches, thats assuming its a permanent mag motor.
                                                 Nemesis

[howie55]

thanks FLJ
I now understand for the first time how it works, its easy when its explained so well
Geoff

[howie55]

HI FLJ 
 is this the circuit you are advising I should use, P79 CONDOR 10/2 AUTOSET Computer SPEED CONTROLLER, and what is a battery eliminator circuitry, and do I need one
Geoff

[Timo2]

Hi Geoff

   Have a look at   http://www.action-electronics.co.uk/pdfs/BEC.pdf

    It's all in the book

      Timo2

    ( "The book"   The word by FLJ     (o Great BAM)    )

[howie55]

Timo2
now I really am confused, I need some time out to digest this info
but thanks for replying Geoff

[FullLeatherJacket]

This is more what you require:
http://www.action-electronics.co.uk/pdfs/Slipway%20Loyal.pdf
A Mabuchi 555 motor should suit this model nicely, running on a 12 volt battery and perhaps a 35mm 3- or 4-blade prop. You would actually only need the P79 speed controller (it's cheaper, but it's connected up exactly the same way).
Don't worry about BEC - "there be dragons...................." 
FLJ

[DickyD]

Like I said FLJ will sort it, he's even trying to explain the black art to me. Barmy.