Model Boat Mayhem - Forum

Dry Dock / Shipyard: Builds & Questions => Working vessels R&D: => Topic started by: ministeve on October 10, 2007, 10:27:37 PM

Title: motor gearbox combo
Post by: ministeve on October 10, 2007, 10:27:37 PM
I'm looking for a good powerfull motor gearbox combo for some tugs both are twin screw one has 50mm props the other has 70mm props. they both will be used for tug towing and thought you guys may be able to help as i usually go big and direct drive as some will know but want to try something new


thanks in advance
Steve
Title: Re: motor gearbox combo
Post by: Shipmate60 on October 10, 2007, 10:30:11 PM
550 motors on 2 or 3:1 reduction gearbox (Model Slipway can supply) and run on 12 volts.

Bob
Title: Re: motor gearbox combo
Post by: Ghost in the shell on October 11, 2007, 12:08:40 AM
speaking of gearboxes, anyway of cutting down the growl of them?  obviously straight cogs they wont be totally silent, but if only I could cut the noise down on southampton
Title: Re: motor gearbox combo
Post by: HS93 (RIP) on October 11, 2007, 12:10:16 AM
are you using gears or belts ?

Peter
Title: Re: motor gearbox combo
Post by: Ghost in the shell on October 11, 2007, 12:14:25 AM
standard cogged box, something like 3.4 to 4-1, pencil eraser sized input 2p coin sized output, plastic cogs, straight cut, sounds like a cat in agony
Title: Re: motor gearbox combo
Post by: HS93 (RIP) on October 11, 2007, 12:20:55 AM
Just change to toothed belt system

peter
Title: Re: motor gearbox combo
Post by: Ghost in the shell on October 11, 2007, 12:26:59 AM
easier said than done, its the southampton RTR, the gearbox is also the engine mounts, all you see of the motors is the contacts for the wires, and the cogs on the outside. 
Title: Re: motor gearbox combo
Post by: HS93 (RIP) on October 11, 2007, 12:29:02 AM
post a picture if you can you may be able to change the internals.

Peter
Title: Re: motor gearbox combo
Post by: Ghost in the shell on October 11, 2007, 12:31:02 AM
(http://www.modelboatmayhem.co.uk/forum/index.php?action=dlattach;topic=5248.0;attach=12414;image)