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Wesley, It is very unlikely that you will find balsa core in the foredeck area that the "pivoting roller" will be installed. Any undue stress will be one of "sheer" upon the deck bolts, not "tension", as a backup plate would demand. And as Bob has suggested, best that you assemble a short...

I'm with "Johnbenj" on this issue and add that if nothing else is discovered in a survey of all the normal protocols, it has to be the "ethanol fuel". Have a read of the post I authored several years back that describes the problem, what needs to be done, and how to prevent it from occuring...

https://www.youtube.com/watch?v=UtJ3hMxlEYw

BobJarrard, Back in the early years of the 1970's the Pardeys promoted the "go simple, go light, and go now" philosophy. Their Seraffyn, a Bristol Channel cutter was only 24' in length, hardly comfortable for even two people, but they persevered and made it work! Interest in the little cutter...

Many of the C-Brats who transitioned from sailing to motor vessels will remember the iconic world sailor and author Larry Pardey. Larry, a Canadian citizen, relocated from British Columbia to southern California in the late 1960's. There he met wife Lynn and together they hand built a wooden...

https://www.avweb.com/aviation-news/gar ... ed-attack/

https://www.bllnr.com/innovation/seaste ... 4-91951169

https://www.military.com/video/air-forc ... erformance One of my all-time favorites!!!

Snapper, The 1990 to 1999 era C-Dory boats were built by the original factory and have stood the test of time quite well. My 1991 shows exceptional work performed, especially the fiberglass hull and gel coat finish. The boat had been driven hard off the pacific northwest coast before I...

In summary; "sea state, set, drift, current, and wind preclude using GPS to accurately measure maximum speed"!

Since my good friend "Bob" has in this situation disagreed with my statement that "current, drift, and wind" would affect your attempt to "accurately determine top speed" using a GPS, perhaps he will explain his theory given potential adverse sea conditions as mentioned?

Let me know how the change of prop worked out. Regards the GPS matter, I had no idea it could be programmed to compensate for the variable local conditions while underway!

Depending on "drift, current, and wind", a GPS indication of true "speed over ground" is difficult to attain. However, "imperial experience" has produced many examples of what works best for most 22' C-Dory owners. The hydrodynamics involved in choosing the diameter and pitch of a prop are...

Nancy & Bud, The "bottom photo" shows the Permatrim to be in the exact position you want it, just slightly below the hull bottom. If it were any further above the hull bottom, cavitation could occur. Moving the adjustment "pin" inboard or out will allow trimming the angle of attack of the...

https://www.youtube.com/watch?v=Pj9g42h3l0U

Since you indicated the noise sounds like a "belt and pulley" squeal, why not try readjusting belt tension. Then if the noise persists, try a bit of belt dressing before digging deeper into the mystery. Start with a process of elimination by doing the obvious and easy things first.

Donnie, You may want to obtain a copies of these two waterway travel guides to assist in planning your Michigan adventure! http://www.michigandnr.com/Publications ... _small.pdf The Michigan Inland Waterway information is contained in this brochure that is produced and distributed by the...

This company has a comprehensive list of balsa and foam core materials in smaller size panels that would suit your application: http://www.fiberglasssupply.com/

Teufel, Nice job on both the boarding ladder install, and the rot repair found in the forward hatch area. Apparently at the time of the build, the factory used two layers of 3/4" end grain balsa as shown in your photos. Once you have assessed the starboard side I would obtain a moisture meter...

The Navajo Nation has suffered with a high percentage of COVID-19 cases, especially in and around the Page and Four Corners region. Anyone contemplating a Lake Powell adventure should take precautions!