Search found 359 matches

by jcallends
Tue May 19, 2015 5:32 am
Forum: New Members, Please Introduce Yourself
Topic: bondo glass
Replies: 4
Views: 1341

Re: bondo glass

Bondo is and always has been a polyester resin filler. Using a filler for an adhesive will result in bonds that do not have the desired physical properties needed for boats. If you want to build a boat forget about easy. It's the ability of the home boat builder to accomplish the difficult tasks tha...
by jcallends
Wed May 06, 2015 5:53 am
Forum: Power Boats
Topic: battery box
Replies: 3
Views: 1358

Re: battery box

Its the fumes from gasoline that are the problem much more so than the liquid. If your tank has a sender for a gas gauge the sender has electricity in it. Your tank vent should be to the outside of the boat and the fill point completely sealed. The connections to the battery also should be the best ...
by jcallends
Wed Mar 11, 2015 8:26 am
Forum: Design Modifications
Topic: RV-houseboat mash?
Replies: 4
Views: 2291

Re: RV-houseboat mash?

I think you would have a stability problem. The travel trailers I am familiar with have all the tanks below the frame, this means the bottom of the trailer would be about three feet above the keel. Unless you have plans to put some weight in the hull I think the boat will be top heavy and tippy.
by jcallends
Mon Feb 23, 2015 7:17 am
Forum: Boat Power
Topic: If you can't have an in-board
Replies: 2
Views: 1756

Re: If you can't have an in-board

Just wondering? How do you determine what is a "small block" Chevy and what s something else? The original small block Chevy was 4.3 L, this one is 6.2L.
by jcallends
Mon Feb 09, 2015 7:30 am
Forum: Miscellaneous
Topic: need to know what this is
Replies: 6
Views: 2112

Re: need to know what this is

It looks like a mold for a small hull, possibly a vacuum or pressure mold with the frame on the outside of the mold meant to hold it in position and prevent distortion.
by jcallends
Tue Feb 03, 2015 10:07 am
Forum: Power Boats
Topic: latest/best gluing methods
Replies: 5
Views: 1882

Re: latest/best gluing methods

There are many additives that can be added to epoxy depending on the desired result. Most boat builders add fillers to epoxy to make the mix less expensive, epoxy is not cheap. Thickeners are added when a thicker mix is desired usually done to keep the mix from running or sagging in a joint. Most ad...
by jcallends
Sat Dec 13, 2014 7:57 am
Forum: Electric Power & Systems
Topic: Back up Battery
Replies: 6
Views: 3980

Re: Back up Battery

If practical install a voltmeter between the motor lead and ground. It will then indicate the voltage of the selected battery. A well charged 12 volt battery will indicate at least 13 volts.
by jcallends
Sat Dec 06, 2014 8:31 am
Forum: Wood and Plywood
Topic: Plywood thickness?
Replies: 6
Views: 2515

Re: Plywood thickness?

Just a guess on my part but I think the skin thickness would be related to the interior structure. A very rigid internal structure with close spacing of frames could use a thinner skin than an open structure that relied on the hull skin for longitudinal strength.
by jcallends
Fri Dec 05, 2014 7:32 am
Forum: Design Modifications
Topic: Bo-jest changes
Replies: 16
Views: 6707

Re: Bo-jest changes

Most above water changes are doable, it's when you start tampering with the hull that you get into trouble.
by jcallends
Fri Dec 05, 2014 7:30 am
Forum: Miscellaneous
Topic: 2 liter bottle of pop
Replies: 13
Views: 3868

Re: 2 liter bottle of pop

Don't know if it actually occurred but I once read an account of an attempt to salvage a sunken ship by pumping ping pong balls into the hull.
by jcallends
Sat Nov 29, 2014 8:00 am
Forum: Small outboards
Topic: Propane-powered outboard
Replies: 5
Views: 2965

Re: Propane-powered outboard

The biggest drawback to using propane and similar liquefied gases is that they are heavier, in their gaseous state, than air. Because of this there is always a possibility of the gas collecting below deck and becoming a fire/explosion hazard. This is the same hazard that exists with gasoline. Pruden...
by jcallends
Sun Oct 26, 2014 9:19 am
Forum: Small outboards
Topic: Skeg Help Needed
Replies: 3
Views: 1989

Re: Skeg Help Needed

I would stick with the plans. I don't see a problem with the skeg below the stem. This set-up is usually bolted together.
by jcallends
Tue Oct 14, 2014 5:35 am
Forum: New Members, Please Introduce Yourself
Topic: 9.9 on a Zip
Replies: 2
Views: 833

Re: 9.9 on a Zip

Do you already have the 9.9? There are a lot of 9.9's around that do not have a tiller, I have a 1991 Yamaha like this originally on a pontoon with remote controls.
by jcallends
Thu Oct 09, 2014 5:55 am
Forum: Fasteners
Topic: Bronze vs Other Metals?
Replies: 15
Views: 9870

Re: Bronze vs Other Metals?

Some wise soul previously stated in this blog that "stainless" is just as the name is implies, less corrosion but certainly not corrosion free.
by jcallends
Wed Oct 08, 2014 6:51 am
Forum: Miscellaneous
Topic: These flew over my house today
Replies: 9
Views: 2747

Re: These flew over my house today

They do look like the T-6, not AT-6, there are still quite a few still flying and are favorites at air shows. I have 120 hours in the T-6.

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