WebLetter 31An Occasional Publication for the Home Boat BuilderGlen-L Marine Designs - 9152 Rosecrans Ave. - Bellflower, CA 90706 In this issue
GLEN-L Update
Barry Witt
Christmas shoppingIt may seem a bit early to bring this up, but our next WebLetter will not be out before the end of November. It's time to start dropping hints to the shoppers in your family. If you don't take the initiative you may be getting yet another bottle of after shave or tie for your collection. Whether it is Poxy-Shield® epoxy resin, a Fastening or Fiberglass Kit, or accessories for the sailboat you are building, start making your list and checking it twice. The easiest way to get those Glen-L products you need is to put a Glen-L Gift Certificate on your list. Get what you want and make life easier for those who have no idea what to get their favorite boatbuilder. Gift Certificate information. Poxy-Shield® - the Boatbuilder's epoxyWhen I prepare the WebLetter, I frequently neglect the business part of my job. It is the sale of plans, kits, and supplies that makes the WebLetter and this site possible. We have sections on the site that explain all about our Poxy-Shield® epoxy resin, but it is not uncommon to get email asking what kind of glue to use and where to get it. Poxy-Shield® is a great glue, but it is much more. It is a 5 to 1 mix of resin to hardener and, as so much of the feedback confirms, it is a great product. As a glue, it is most often used with a filler (we use our #1 Silica) to insure that the mix spans any imperfections. Poxy-Shield® is the resin we use in our Stitch and Glue kits for gluing, fillets, and applying fiberglass laminates. It is the resin we use in our Fiberglass Kits for applying cloth. It is also used for coating wood. Not only is it a great product, but it's cheaper than the only comparable product on the market. I once asked the chemist at our formulator why there were epoxies that were cheaper, were we getting the best price? The answer was that we could make Poxy-Shield® much less expensive if we added more diluets (solvents)... we didn't. Those who have used it for coating or "pre-coating" before fiberglassing have commented how much harder the surface is and that it is much less likely to sand away the soft grain of plywood if it is coated with epoxy before sanding. Poxy-Shield® is available with both fast and slow hardener, but slow is by far the most common and best for most applications. Poxy-Shield® comes in three sizes: Quart Kit, Gallon Kit, and 5 Gallon Kit. The volume refects the volume of the resin. Each Kit also includes a 1/5th volume of hardener. Poxy-Shield® can be purchased through our web site, by phone, or through the mail.
For detailed information on Poxy-Shield® and our other epoxy products, see the Epoxy section of our web site.
On the Mark: Boatbuilding Tools - Part 3
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Designer's Notebook: Self Draining Cockpit
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Dear Barry:
First, thanks very much for taking the time to publish the WebLetters. They are very informative and it's encouraging to see other's projects being completed. Please, keep up the good work.
I recently purchased plans for the Super Huck design, lumber is going to be picked up this coming Monday and construction will begin. Yea! I've been a fan and customer for over 20 years and I still think you have great designs.
Now, I have to take you to task a bit having just read your comments pertaining to four-stroke outboards. I have an outboard dealership here in Washington State located on Puget Sound. Our main line is Honda, which is all four-stroke outboards. But lest you think that I am totally biased, we also carry Nissan (Tohatsu) which has some of the lightest motors (2-stroke) available. I know of no situation where a 4-stroke engine weighs double (as stated in your comments) the equivalent 2-stroke engine. The weight differences between 2 and 4 stroke engines varies quite a bit with the size category engine being referenced making it very difficult to make blanket statements pertaining to weight differences. For instance, referencing 50 horsepower engines, the Honda 50 is actually *lighter* than some equivalent 2-stroke models. While I concur about your point to construct strong transoms, I would argue the need to beef up an already strong design simply based on the fact that a 4-stroke outboard is being used unless the design had a marginal transom to start with. Adding unnecessary weight at the stern of a planing hull will certainly not help its performance. The highest forces on the transom are those imposed by torque when forward throttle is applied (especially in full throttle applications). That torque is dependent on the horsepower/torque characteristics of the motor and not dependent on the weight of the motor per se, nor the fact that it is either 4-stroke or 2-stroke. The static torque applied to the transom from the weight of the motor "hanging" behind the transom is certainly a consideration, but in a well engineered transom, a 4-stroke engine is not inherently more likely to cause a failure then a 2-stroke engine. It is interesting to note that most production hull transoms have not been re-engineered to accommodate 4-stroke engines from a strength standpoint. I do see a trend toward wider boats (as much marketing driven as for any other reason*) which, with more surface area under the stern do float heavier motors better and plane out better as well.
Barry, I hope that you appreciate that these comments represent my opinions from years of experience and in no way am I criticizing you, your company or your designs!
All the best,
Les Lampman
Whidbey Island, Washington
USA
* The trend toward wider transoms is primarily driven by the US Boating and Safety Act; wider transoms allow for more hp. brw
Here are a couple of things things I've found useful in saving time and effort while boatbuilding.
Joe Carozzoni offered a good suggestion:
When builders list the engine (e.g. CID/HP) and propeller size/pitch - it's not much help unless they give a transmission ratio. While the direct drive BW Velvet Drive was once common, I've noticed many of your recent builders using the angled transmission (like I did) and the ratio can vary from 1.25:1 to 3:1. Possibly, if you outright list what information you're looking for, builders would give all the details. For example, if someone else builds a Monsoon (or another boat with similar hull/weight) - this would be most helpful:
- Design:
- Engine CID/HP:
- Transmission Ratio:
- V-Drive ratio:
- Propeller Diameter/Pitch:
- Speed@RPM:
- Builder:
Note: On small boats, speed estimates are mostly based on experience, which usually does not involve all the various hp options. The "How fast?" is a valuable resource for other builders. Please share your performance stats.
By the way, I am building a 1/12th scale model of the Ski-Bass to come up with a rearranged interior. I have some pictures and when I get them developed, I will scan and send to you. I have used Bass wood for everything, as I think it cuts better than balsa. I built the form straight from the plans and built individual frame pieces and put together with gussets. All battens, chine logs, and sheer clamps are in place, and the boat is planked. I am still working on the interior.
At 1/12th scale, the thickness of sheet available are almost perfect for the 1/4" ply equivalent for the sides and bottom planking. I am using CA (super glue) from the hobbyshop. I have used CA glues on RC airplanes and it works just as good here. The local hobby shop even has some extremely fine and lightweight fiberglass fabric for epoxy use for the person who has to have everything just like the full size. I don't think I will fiberglass the model, though.
Just my experience, but I think it is easier to build a model exactly like the plans show.
Subject: Finished Squirt Pictures
Date: Mon, 15 Oct 2001 19:46:05 -0400
Hello,
With this e mail, I have attached 3 pictures of my finished squirt. We started building the frames 3 summers ago, and just completed it this summer (only working on them during the summer). The boat was built by my dad, my great uncle, and I. We actually built two boats, one for me, and one for my cousin. The second summer, we assembled the frames, and got to the point of putting the deck on. This past summer, we finished the deck, fiberglassed, and painted the two boats. There is still some finishing touches to be done on the boats (pinstriping) that we will be doing next summer. My boat (blue) will have a silver pinstripe with the design from the plans, the other boat is white and will have a red pinstripe. I also plan to get a windshield made for the boat. I had a lot of fun building this boat with my dad, and great uncle, and it was a great learning experience for me. I will send other pictures of my boat, and my cousins boat once my scanner is fixed, so watch for them!
Robert Sprange
Lake of the Woods
Ontario, Canada
Below is the result of your feedback form. It was submitted by on Monday,
October 15, 2001 at 16:43:57
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name: David Runde
Comments: Many years ago, I followed in my oldest brothers footsteps and built a Super Spartan. Now that I have children of my own, it will soon be time to work with them on their first boat (hopefully one of the three girls will be interested!!!)
Heck, who am I kidding, I'm ready to do another one for myself!
Thanks for all of the great kits available, and look forward to my order in the near future...
Below is the result of your feedback form. It was submitted on Thursday,
October 11, 2001 at 16:41:41
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name: Don MacArthur
Comments: In 1981-82 I built the Glen-L 12. A 12' sloop. Great fun building it and it was quite successful. However, I enjoyed building it more than I did sailing. About 4 years later I gave it to a man that worked for my wife. He loved it also.
Subject: tuffy project registry
Date: Mon, 8 Oct 2001 0:05:02 -0400
From: Anthony Moschella
First time boat builder, with some (limited) carpentry experience. I'm 21 and a full time student at Brown University in Providence, RI and I've been dreaming of building my own boat for years. This summer working nights and weekends I finished the Tuffy. The project was built entirely in my garage in Cedar Knolls, NJ. I worked on it most weekends and tried to work a few nights a week. I completed the project in 3 months to the day, beginning on 28 May 2001 and finishing on 28 August 2001, two days before I had to go back to college. So I never got a chance to put her in the water. I can't wait until spring. I still need to finish the interior, mount the motor, and install seating, but otherwise it's complete. It came out amazing, especially for my first try. The hardest parts were bending the chines and curving the forward portions of hull sheeting. For the chines I had to depart from the plans and use 3 laminations of 1/4" oak lattice instead of the the 1" mahogany called for in the plans. I just couldn't get it to bend, but I think the oak will work fine. And I broke a piece of plywood when laying the forward hull. The secret is patience! You have to bend a little at a time (volumes have been written by others about this). Also, you have to position the grain of wood along the maximum axis of curvature. I worked almost entirely alone, with my father, brother, and friends helping a little. This project was probably the single most rewarding thing I have ever done, and I encourage anyone considering beginning a boat to go for it. It was so amazing and rewarding and powerful to see a pile of wood become something beautiful and functional. I learned a lot about carpentry, but more importantly, it was so introspective. Boatbuilding honestly changed my life, it was exactly what I needed. Glen-L plans were excellent and everyone at Glen-L was extremely helpful.Any questions or problems I'd be happy to help out. I can be reached at adm@brown.edu. Good luck!
Below is the result of your feedback form. It was submitted on Wednesday,
September 19, 2001 at 03:14:31
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name: Bart Hammack
Comments: Good Morning
I guess this is a family tradition to build a boat of yours. My father
Jim Hammack built 4 of your boats, I believe he talked with you many
times. He was in Florida then California. He died about 4 years ago. He
was into sailboats and also a house boat. I fell in love with the Lucky
Pierre as a kid and thought what a great boat to explore with! He and I
talked for years about building it, but it was not to be. So to the
future (now)... I live on a 34' Californian trawler with my wife and
our 11 month old son and a basset hound. I was just given an 18 horse
universal diesel engine and wanted to use it! A friend and I are getting
ready to order plans for the Lucky Pierre (my father bought me a set on
my 16th birthday - I wore them out dreaming over them and lost them to an
old girl friend!) This will be my first attempt to build a boat on my
own( I'm 43). The boat will be named The "GOOD JIM" in
honor to my father (he will be some where laughing his ass off at me).
Sorry about the long e-mail I will be getting with you soon.
thanks Bart Hammack
Subject: Building the Fancy Free
Date: Mon, 10 Sep 2001 22:40:26 -0700
From: Ken Perry
I am just finishing my Fancy Free project. I am quite pleased with the quality of the design as well as the helpfulness and convenience of the products and services from Glen-L Marine.
Ken Perry, Ph.D.
Bainbridge Island, WA
Below is the result of your feedback form. It was submitted on Sunday,
September 16, 2001 at 18:51:46
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name: John L MacCormack
Comments: The best site I've found in the genre. My first catalog was ordered in 1958, I think, and worn thin until I found girls. But I am back...
Below is the result of your feedback form. It was submitted on Sunday,
September 16, 2001 at 21:27:50
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name: Phil Baker
Comments: I have built both Nimrod and Nomad. I still have Nomad which
was built as an open boat. Nomad is now 40 years old and needs a refinish
which I intend to get at next year. Currently I am building Sissy Do.
I'll call it Sweetpea. Sweetpea will receive 3 coats of epoxy and 3
or 4 coats of varnish.
I like your designs which are straight forward and no nonsense.
My next boat will be a dory.
Below is the result of your feedback form. It was submitted on Monday,
September 17, 2001 at 12:57:08
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name: Daniel J Salisbury
Comments: I built one of your 18 ft. designs using your patterns about forty years ago. It turned out to be a real good boat. I still have some good photos of her. My wife and I brought her up the Oswego River to Lake Ontario, crossed the lake from Oswego to Cape Vincent and through the thousand islands to Bockville, Ontario on several occasions.
I wish I was younger and in better health so I could build another like her. It gives one a great sense of pride in the accomplishment.
Sincerely
Dan Salisbury