1988 Shoalwater 176 Rebuild

Questions about boat repairs with our resins and fiberglass: hull patches, transoms and stringers, foam, rot etc.
redfishjim
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Re: 1988 Shoalwater 176 Rebuild

Post by redfishjim »

Very cool, Tom. I have a couple leads on props, one being Baumann here in houston, other being Powertech. Baumann thinks their 3 blade blaster series in 16p(double cupped) is the starting point. Powertech thinks their SWW4 prop in 14p is the answer. I'm really curious what you come up with, thanks.

Boat:1100lbs, 25 gallons fuel: 150lbs, 2 anglers: 500 lbs, jackplate: 50lbs, trolling motor: 50lbs, batteries/chargers: 150lbs, coolers/ice: 50lbs, mk talon: 25lbs, +50lbs extra for misc.
= 2,125 lbs total (boat, gear, people, excludes motor)

Motor: 2023 2.1L 115hp ProXS, Standard lower unit (not Command Thrust), weight: 359lbs

Top priority in a prop: hole shot & grip

TomW1
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Re: 1988 Shoalwater 176 Rebuild

Post by TomW1 »

Jim here is what my calculations show. For a 3 blade a 13.5 x 16 double cup would work. A 4-blade in 13.5 x 14 would be my recommendation. If your going shallow the 4-blade would be the better choice for you. It will allow you to raise the motor an inch or two higher than the three blade. Your top speed with that Merc 115 worked out to mid 40's. Total boat weight ended up at 2505lbs with motor, prop and fluids. When you are talking to Powertech ask them about their 4-blade RXB prop it has some moderate rake and cup to get up faster. Rake and cup helps hold water on the prop, it is a 13.25 do to rake and cup. If you have any questions, please feel free to ask.

Tom
Restored Mirror Dinghy, Bought OD18 built by CL, Westlawn School of Yacht Design courses. LT US Navy 1970-1978

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