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[clinker]

Hello Everyone,                             
             Like Mike i am a new member to this forum and thouthgt i should introduce myself, born and bred in Kent and lived here all of my life,i have retired from work a few years early due to a back injury having been a boat builder for 43 yrs.
 I have always had an interest in model boats ,but never got around to building any.Just a few weeks ago a friend gave me a model that his father had built in the early sixties,he found it when cleaning out his loft,it is a cabin cruiser 30" long with a 6" beam in good condition considering its age, all it has
is a rudder with post and a 40mm dia. prop on a 4mm dia. shaft thats it.
 I have radio gear from my sons crashed spitfire,all working,10 .8 v 1000 mAH battery pack with a motor,speed control and servos,trans/receiver.
 Obviously the motor runs far to fast for a boat of this sort , so could anyone advise me as to what r.p.m. i should run this prop at for this model ???
can i use this motor with a reduction gear box, or would it be better to start over with a motor with a built in gear box,having never had any experience
with R/C before any help and information will be very much appreciated.
          many thanks
                         clinker.

[Martin (Admin)]

Hi Clinker and welcome aboard the good ship Mayhem!

Do you know what "size" motor is that came out of the "downed" Spitfire (enemy action?)?
I ask as if it is a 540 / 550 / Speed 600 it 'maybe' suitable for you boat.
( Also, is the motor any good, just in case it went in nose first, full chat.... into concrete?!!! )

The 10 .8 v 1000 mAH might be on the small size, it won't last long on the lake, you are going to need a bigger one!
The speed controller may not be up to the job either, certainly it's 'Forwards only' and has poor low end speed control.

.... just my tuppence worth!

[dougal99]

Hi Clinker

welcome to the forum.

Not sure whether a motor intended fro an aircraft would turn a 40mm prop in water at a reasonable speed. Geared down might be OK but you may not get the speed through the water you might want. I would go for an 800 or 850 motor myself.

Turning to the radio. Unless your radio is 2.4ghz, which can be used on both air and surface, you have a problem Aircraft use 35mhz and boats/cars  40 or 27 mhz. One frequency band cannot be used for the other - sorry. A reasonable 40 Mhz set should cost less than £40.

HTH

Doug

[clinker]

Hi
 Oh Oh looks to me as if  im trying to make a go of things on the cheap with what i've got doe'st it, well i was !!!
 taking in what has been said i need to get a lot more advice from the people that know, this means anyone on the forum
willing to help me get some reasonably priced gear together with some helpful advice and i think i need to start reading up on a few things as well.
  oh well i can only start at the begining.
  many thanks, more questions to come .
             clinker

[craftysod]

A good start would be to show a pic of the boat,then more advice can be given.

It wont cost you a fortune to make the boat go at a reasonable speed
Mark

[Shipmate60]

clinker,
For this size of boat a Mabucci 550 motor on direct drive will give her a reasonable turn of speed on 6 or 7.2 volts or reasonably fast on 12 volts.
These motors are rated up to 12 volts and retail about £7-00 ish.

Bob

[clinker]

Hi
   This is my recently acquired cabin cruiser ( hope the photo is O.K.) as I said it is thought to have been built in the early sixtie's , if anyone can give me any more information on this particular model it would be much appreciated, 30 " long with a 6" beam.
           
cheer's
  clinker.

[malcolmfrary]

If it is intended to float where the waterline looks to be, it will not be a heavy boat.  This means it shouldn't need a lot of motor.  A 545 or a 5 pole 385 or 400 run on about its rated voltage using a prop about 30 - 35mm will give realistic performance.  The smaller prop will allow the motor to spin faster, causing the volume of water that gets moved backwards to be the same as that from a larger prop, but moving faster, thus giving a higher top speed.
Again, as it looks to be shallow drafted in relation to its height above water, I would mount all of the heavy stuff as low as possible.

[clinker]

Thank's Malcolm,
                     I think I will be spending a lot of time working my way through this brilliant web site, I have a lot to learn,It's great to see so many people ready to help with so many subject's ( I'm sure lot's of the questions have been asked and answered  many times ) .I will go through the forum before asking my next silly question, I'm sure the answer is in there somewhere.

             clinker.

[clinker]

Hi,
  Could you please recommend a book or books that would help me with more of an understanding of the electronics of R/C,e.g. matching motors to esc's,the right serv's,correct wiring connection's etc. Bearing in mind that I have only just crawled out from under a stone,(it's was a clock work stone).
                  Cheer's
    clinker.

[dougal99]

You could try:

The Complete Marine Radio Control Manual by Hugh Bright  ISBN1-86176-087-6

Unfortunately, Mr Bright is no longer with us but the book has recently been updated - see:

https://shop.traplet.com/product.aspx?c=311

HTH

Doug

[craftysod]

Or go to ACtion electronics website,can be found under traders,for plenty of wiring diagrams
Mark