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 steel thickness 
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MMT Member

Joined: Mon Sep 17, 2012 6:54 pm
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Location: mn
Post steel thickness
Getting ready to order the steel for my build and realized i do not know how thick the plate needs to be. I know i read it somewhere but i wasn't paying attention at the time. Now i can't find the threads i was reading. I think it's 1/8 for the cav plate and is it 3/16" or 1/4" for the engine mounting plate and prop guard. 1/4" seems kind of heavy but willing to listen to what you have to say. Thanks for the help.


Wed Sep 26, 2012 2:53 pm
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Post Re: steel thickness
3/16" for motor mount and flatbar for support bracing. 1/8" for cavitation plate and skeg.

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Thu Sep 27, 2012 7:52 am
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Post Re: steel thickness
Thank you. That should save about 10lbs. :)


Thu Sep 27, 2012 8:24 am
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Post Re: steel thickness
Mad Mud Motor Plans calls for 1/4" for the motor mount plate and 1/8" for the skeg and cavitation plate.

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Thu Sep 27, 2012 11:45 am
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Post Re: steel thickness
The Mad plans call for 1/4 but that is overkill in my opinion. 3/16 should be plenty!


Thu Sep 27, 2012 12:22 pm
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Joined: Mon Sep 17, 2012 6:54 pm
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Location: mn
Post Re: steel thickness
Thanks guys, i think i'll go with the 3/16 and if there is any flex i can add some bracing later. This motor will only have a 6hp on it anyway. At least until i get a bigger boat. I got the parts to freshen up the motor ordered today and the steel is next :)


Thu Sep 27, 2012 9:01 pm
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