About Martin Seymour Expertise My experiance is mainly in Ic powered model boats scale and semi scale. size from 2ft to 7ft long using glow plug and petrol engines.
But NOT multi boats.
I have converted many chainsaw and strimmer engines for this purpose.
also designed and built three sizes of model waterjets for model boats.
Experience
Past/Present clients Many members of the public ---- hobbies.
Question Our science center is trying to develop an exhibit featuring a remotely operated sub. I have created a sub that can submerge, surface and move forward and backward. The trouble I am having is with the propulsion. I am using the Tamiya 70153 submarine motor but, they are not standing up. I am running them at 3 volts dc (even though they are rated at 1.5). I am looking for options for the motors. Any suggestions for a submersible dc motor?
Answer HI Bruce.
You do not say how large the sub is, is the motor being asked to do tooo much work --over loading it?
3v instead of 1.5 it must be screaming its guts out !
Sub motor? not heard of these ? is it enclosed in hull ?
From what limited information you have given me i would say you are over cooking it.
Tell me more>
Martin.