Search found 10 matches

by JimD
Wed Jun 27, 2007 2:57 am
Forum: Design Modifications
Topic: Geronimo Modification to Strip Plank
Replies: 2
Views: 2886

I'd reckon you can strip plank just about anything although you'd want to do some serious research to get the scantlings and fiberglass requirements and so on right. T'wer it me I'd start by looking at boats of similar size, weight, speed and power requirements that have already been designed for st...
by JimD
Sat May 05, 2007 9:37 am
Forum: Design Modifications
Topic: Tango
Replies: 1
Views: 2734

Start by reading The Seaworthy Offshore Sailboat by John Vigor . And if you want to live to tell of your off shore experiences think worst case senario. Is there a stability curve available for Tango? What's going to happen if she gets knocked down more than 90 degrees? If she gets slammed by tons o...
by JimD
Sat May 05, 2007 9:08 am
Forum: Design Modifications
Topic: Junk rigged Bulls eye ?
Replies: 2
Views: 3455

I reckon almost any boat would do so presumably you'll pick a boat you'll have use for later. I'm in the process of converting our Minuet to a junk and have designed the sail and built a small 'prototype' to try out on a kayak this summer. We'll see who gets done first, eh? I wish I had the means to...
by JimD
Sat May 05, 2007 8:54 am
Forum: Epoxy
Topic: What will epoxy NOT stick to?
Replies: 7
Views: 7699

Almost any plastic garbage, yard, or shopping bag will do. I use whatever I have on hand at the time. Except for some bizzare reason I once used a President's Choice brand garbage bag and had a really hard time getting it to peel off the cured epoxy. I have no idea why or whether it was something ab...
by JimD
Sat May 05, 2007 8:41 am
Forum: Epoxy
Topic: mystery finish
Replies: 2
Views: 2742

Don't know, but other high end manufacturers use 2part polys and I've used Endura brand over epoxied bright work on our Minuet (photos in the Archive). Of course if you want that factory perfect finish you'll have to spray it on, several coats, in a meticulously dust free environment. Or pay the pro...
by JimD
Mon Apr 30, 2007 12:53 am
Forum: Hankinson designs
Topic: Outboard motor in well for 18.5 ft Hankinson tug Goliath
Replies: 9
Views: 5974

MOst 9.9 HT has a 25 inch shaft. This will change the well height and also may change any covers or any designed components on the boat in that area. You are also changing intended weights in designed areas which may not make much difference, but keep this in mind. Oyster, Yamaha's website says the...
by JimD
Fri Apr 27, 2007 10:55 am
Forum: Hankinson designs
Topic: Outboard motor in well for 18.5 ft Hankinson tug Goliath
Replies: 9
Views: 5974

I found someone on another forum who uses the Yamaha High Thrust 9.9 to power his 28 foot yawl and he says he's very happy with it. So that is encouraging
by JimD
Thu Apr 26, 2007 3:50 pm
Forum: Hankinson designs
Topic: Outboard motor in well for 18.5 ft Hankinson tug Goliath
Replies: 9
Views: 5974

The Goliath is going to have a hull speed of about 6 mph. My sailboat weighs in at about 8000# with a 24' waterline. An 8 hp diesel pushes it 6.2 mph. The shaft rpm is about 1000 w/ a 13" prop. I think the pitch is 9". Bill The Yamaha T9.9 prop is just under 12" diameter, pitch 9.25. Their website ...
by JimD
Wed Apr 25, 2007 7:36 am
Forum: Hankinson designs
Topic: Outboard motor in well for 18.5 ft Hankinson tug Goliath
Replies: 9
Views: 5974

I can't see a problem. A 10 hp diesel is about 300#. I'd try to get the prop about the same location. With an outboard you can have directional thrust which is much nicer than a fixed prop. Bill Thanks, Bill. I wasn't planning on directional thrust. Rudder steering only. I realize there are advanta...
by JimD
Tue Apr 24, 2007 2:58 pm
Forum: Hankinson designs
Topic: Outboard motor in well for 18.5 ft Hankinson tug Goliath
Replies: 9
Views: 5974

Outboard motor in well for 18.5 ft Hankinson tug Goliath

My first post on the BC so sorry if this question has been dealt with elsewhere. In lieu of an inboard power plant I am considering an outboard in a well. Possibly a Yamaha four stroke high thrust ten hp. For those unfamiliar with these engines they are intended for use on displacement hulls and emp...

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