Many thanks for putting me in my place, Andy.

I hadn't considered the possibility of interference..... I was only trying something new and found a solution.
As I said, I was unable to get any help and I wasn't a member of this site at the time so I really had no help at all.

It may not be as big a problem here in Australia, as models actually operating are regularly few and far between. in any case any gatherings are strictly regulated and only one crystal set of the same frequency is allowed to operate at any time to avoid this issue. Also, Boats and Aircraft normally don't meet at the same locations....
We do actually have etiquette here, I will point out. if I saw another person within range who was operating an RC model of any type, I would ask him what frequency he/she was on before I even turned mine on. So we aren't exactly uneducated here on the other side of the planet.

Please keep in mind, it was just a thought.

Regards
Paul

Many thanks guys/girls that is a great help although with respect Andy is definately correct Aircraft radios should be used on aircraft only.
Kind Regards
Stuart

PS I

m sure I

ll be back pestering you all for more info later.

HI Stuart,

Please do not consider Paul's advice as a reasonable or acceptable solution to your question.

Aircraft Radios are for flying models ONLY. Using them for surface models is foolish, dangerous and (I believe) Illegal.

It is unfortunate that some non-modellers have/are fitting Air-radios to bait boats, but offering this advice on a modelling website is very bad practice and should be disregarded. At the very least, you could inadvertently 'shoot down' someone else's pride and joy, and the possible consequences of an out-of-control large model crashing to earth do not need explaining.

Andy

Stuart, Hi.
I have a bit of info on something I worked out for a three-motor installation of my own on a 1/32 Perkasa.

I definitely wanted three motors controlled individually so I purchased 3 ESCs. To control this for on-the-spot turning I purchased a Radio set which is a programmable Aircraft unit, a JR Propo Max-66. The set allows V-tail and Delta-wing mixing.
The setup I chose was V-tail, which allows on the rudder setting for one motor forward and one back, so precision control is sorted. There is a switch which is programmable and allows the middle motor to be "cut-in" when operating all-forward together.
Keep in mind, three ESCs and a programmable radio are pricey, but hey it's big boys toys so I say go for it if the budget allows. 😊

If you (or anyone) need more info please send me a private message.

Regards
Paul

*Email address removed - See terms. Admin

HI Stuart ,
Have a look at( Action electronics) on the web, they will show you how to do it ,as they put all their wiring diagrams for people to see, and by the way their products are Brilliant especially the sound module ,The Noisy thing !!

Regards Bootneck

there are several ways to hook up 3 motors. the first and "proper" way is to use seperate motor controllers for each motor, then use a proper electronic "mixer" to control them, so once wired up, as you turn the boat, the mixer picks up off rudder input, as drops power to the outer engine [on the turn].
However, another "cheaper" way of doing this is using a single "HIGHER POWERED" motor controller [which can handle the load of all 3 motors], then if you wire the outer 2 motors to some micro switches which are placed around the rudder control hornm, as you input rudder the outer motor is switched off momentarily, thus enabling you to turn the boat easier than running all 3 motors at once.

Dont forget that one of the outer motors runs opposite rotation and with opposite "handed" propeller, to counteract the torque bias of 2 spinning props.

I have used this method on my italerI PT boat [1/35th scale] and runs a treat.

You can run 3 motors all the time, but But makes for a very "wide" turning circle, so unless your boating lake is big enough, you do need to put some form of control in place, either that, or it means dropping the rev's to an very low speed to make turns!

i've attached some pics to show the rudder setup on my pt boat, sorry but they dont show the misro switches in situ, but as you can see, leaving the additional "horns" on the servo arm, they will make contact with the micro switches and cut power to the "inner" engine on turns. You will have to do a bit of fine tuning with switch positions, as you dont want the motor power to be cut too soon on turning.

One more thing ! dont skimp out on rudder size!, dont use "scale" rudders, they wont get enough purchase on the water and the boat wont turn at higher speeds, put as much rudder area in as you can, without going over the top of course!.

hope this helps, but if you need any more info, get back to me.