RC Boats General Discussion Discuss general rc boating topics here.

Senior Design - Large Electric Vessel

Reply

Old 11-08-2018, 07:48 PM
  #1  
CleanGreen
Junior Member
Thread Starter
 
Join Date: Nov 2018
Posts: 1
Question Senior Design - Large Electric Vessel

This is my first time ever posting, but more than that, my first time working with an RC project so I would really appreciate any info. Would anyone have a good guess on what kind of motor and battery combo would be a good choice for the size of boat I am trying to build.

My team and I are building a functional prototype of a sea fairing vessel for our sponsor. It's expected to be about 5' long by 3' wide with a catamaran type hull (two smaller hulls connected by a deck and canopy). The hulls will be as light as possible using either fiberglass or plastic, but the vessel with have a bit of weight/drag due to a garbage collection system that will protrude into the water. Our saving grace is that the minimum speed it has to achieve is only 2 knots ( about 2.2 mph). So if we have 2 motors (1 per hull), probably for torque over RPMs, anyone know a good motor for the job?

Like I said, this is my first ever exposure to anything of this nature so even a helpful point in the right direction would be great. Thanks for checking the post.
CleanGreen is offline  
Reply With Quote
Old Yesterday, 03:06 AM
  #2  
mfr02
 
Join Date: Jul 2007
Location: Blackpool Lancs, UNITED KINGDOM
Posts: 1,204
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Look up "hull speed". You might find that 2Kt is about the top end that a 5 foot boat can economically manage. According to the calculator on https://www.easycalculation.com/phys...calculator.php about just under 3, but this will drop dramatically with anything other than a nice smooth, clean hull.
Duration will depend on the size of the battery that can be carried. Anything being dragged will act as a sea anchor and reduce performance
If intending to be actually seafaring, have a look at SEACHARGER - SeaCharger Oceangoing Autonomous Boat - Home where you might get sime useful tips from somebody who sent a boat from California to Hawaii, and almost got to New Zealand.
mfr02 is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service