Model Boat Mayhem

Mess Deck: General Section => Beginners start here...! => Topic started by: Malcolmbailey on January 22, 2016, 04:37:20 pm

Title: New member - twin prop question
Post by: Malcolmbailey on January 22, 2016, 04:37:20 pm
Hello everyone. I am new to this world of model boats. I am trying to make a model of an F class destroyer of the Second World War. The original ship had two props and I would like to have the same in my model which is on a scale of 100 to 1.

Can I run two motors from one speed controller or should I have one motor driving two prop shafts.
Thanks for any advice.
Malcolm
Title: Re: New member - twin prop question
Post by: Plastic - RIP on January 22, 2016, 05:08:57 pm
1/100 makes a good sized model - go for 2 motors and 2 controllers - it gives you flexbility to make the motors run independently for better steering and the extra cost is minimal compared to the total cost of the model, fittings, paint, glue, battery etc.

It will also make the model more saleable if you decide to sell it in the future.

Question - why 1/100?
Why not the more standard 1/96?
Title: Re: New member - twin prop question
Post by: radiojoe on January 22, 2016, 07:18:11 pm
Can I run two motors from one speed controller or should I have one motor driving two prop shafts.
Thanks for any advice.
Malcolm

The simple answer is yes you can, and have the motors contra-rotating with a single rudder. Some of my boats are this set up and give good scale like steerage.  :-))
Title: Re: New member - twin prop question
Post by: Malcolmbailey on January 22, 2016, 08:49:42 pm
Thanks for your comments.i purchased a kit for HMS Embling and used this to make the hull. I am researching the HMS Fortune on which my father in law sailed during the war. It is probably 1/96 not 1/100.
I have yet to design scale and build the superstructure working from Internet photos of the ship so I shall work on 1/96.
Thanks again for your responses.
Malcolm
Title: Re: New member - twin prop question
Post by: ballastanksian on January 22, 2016, 10:14:36 pm
It might be worth fitting a mixer/speed controller unit such as Action make. I have a P94 Dual ESC-Mixer to run my three shaft WW1 destroyer that is still in progress. It will be powered via a P92 distribution board currently fitted inside my tug along with an Action speed controller.

The above allows you to control differential speed via the rudder which is plugged into the P94 slowing one prop down and speeding the other up as you turn, or in one mode, allowing you to 'Tank drive' should the desire take you:O)

http://www.action-electronics.co.uk/pdfs/P94.pdf (http://www.action-electronics.co.uk/pdfs/P94.pdf)

http://www.action-electronics.co.uk/pdfs/P92.pdf (http://www.action-electronics.co.uk/pdfs/P92.pdf)
Title: Re: New member - twin prop question
Post by: inertia on January 22, 2016, 11:08:50 pm
Here's the low-down  http://www.action-electronics.co.uk/pdfs/Twins%20Ver2.pdf (http://www.action-electronics.co.uk/pdfs/Twins%20Ver2.pdf)
DM
Title: Re: New member - twin prop question
Post by: RAAArtyGunner on January 23, 2016, 12:27:11 am
1/100 makes a good sized model - go for 2 motors and 2 controllers - it gives you flexbility to make the motors run independently for better steering and the extra cost is minimal compared to the total cost of the model, fittings, paint, glue, battery etc.

It will also make the model more saleable if you decide to sell it in the future.

Question - why 1/100?
Why not the more standard 1/96?

1/100 is standard as is 1/50.
1/96 is an imperial standard.
Title: Re: New member - twin prop question
Post by: Captain Povey on January 24, 2016, 09:59:34 am
I can recommend the P94 it works well in my battleship. Easy and neat to install. I also fitted the fused power distribution board. Graham :-))
Title: Re: New member - twin prop question
Post by: Malcolmbailey on January 25, 2016, 10:09:17 am
Thank you all for your comments which I shall now digest,
Malcolm