Hi MODELMAN,

There is a thread in the beginners called motors & overheating you should read.

You want maximum power? You would get maximum thrust from the 543-23 at a smaller current and higher rev count with a smaller prop. I have been there and done that myself. Amotor with highr no load revs usually turns slower than an equivalent once you put a decent prop on it.Don’t confuse a higher power motor with one that turns at high revs without a prop.Don’t wire motors in series

Don’t use 40mm props because they are too big for that motor (don’t go on the Electronize guide). Look at a source higher up in the supply chain. Search for dc motors ,ungeared in  the rs catalogue where there are data sheets of motors. I would get the model going before you start looking for a switching mechanism.

 Penny Lee

Modelman. Love the video, as you say seems to go well enough, but it looks very light at the moment (obviously as its not finished) , did you try it ballasted down to full displacement or does the vid clip not give us a true estimation of the freebaord etc etc ?  I agree with the steering well when not under power, all my ships seem to turn on a sixpence when I stop the motors (the ones with several props and only one rudder, that is)  I have a theory thats its something to do with the propellers not turning….hhmmmmm  Ashley

    All this speculation about steering, is making me laugh !            I was doing basic seamanship in the Royal Navy, the instructors kept babbiting on about "steerage way"and other such secrets about ship driving, or even dinghy sailing , If you want to drive a floatey thing round a corner, you have got to be moving. The rudder can only work if water is flowing past it  so, a rudder only works if water is moving past it,therefore, if you have a layout where a propellor is pushing water past a rudder, you can steer the boat even if it ain’t moving, but it will move once the thrust of the propellor overcomes the inertia of the boat’s mass. just imagine that the water thrusts against the rudder which is turned deflecting the water sideways. We all know that any action has an equal and opposite reaction, and in our little scenario above the turned rudder is deflecting the water to port thrusting the boat’s stern to starboard, or in other words, steers it. I think Ashley got there on his own, clever lad. You should see my lifeboat steer, with two prop’s  and a rudder just astern of each one. I beleive the rudder shaft should be cranked to provide a modicum of lift in the opposite side of the turn to induce a little lean into the turn like a motor-cycle

To add to your Hmmmmm Ashley, could it be the drag of thestationary props On the other side?

Imagine the result if you had the motors going ahead on the port side and astern on the Starboard