Wampum VM Frames Installed

First: I've changed the name from Wampum III to Wampum VM (for Vintage Marblehead). It may not be the final name change though, but it will do for now. It's a Vintage Marblehead sailboat, but with a few modern updates to help the builder. However, the boat should sail essentially the same as it did in 1933, when it was originally designed.

Second: I've finished clear coating and laminating the frames, and have just installed them on the strongback.

In order to do that, I've laminated the entire keel build-up, and have also shaped the keel.

The Wampum VM Vintage Marblehead RC sailboat

Wampum VM Vintage Marblehead wooden RC sailboat

Wampum VM Vintage Marblehead wood RC sailboat

In the pictures below, you can clearly see how the keel system works. The main keel is built up of several laminations of 1/16" plywood on top of a 1/8" inner core. You can also see that the front section of the keel only shows the inner core, but the aft part is shaped wood. The lead ballast will be secured to both sides of the inner core section, and will be molded to match the wood.

When I cut the frames, I also cut pieces to make a male mold for the ballast. Those pieces were laminated together, and then mounted on the keel. In this way, I was able to shape the male mold at the same time that I shaped the keel. So now, the male molds and the remaining aft part of the keel all flow nicely together.

I'm working right now on further refining the male molds, and will hopefully be making the female molds within a week. They will take a month or so to cure, but then I should have a nicely shaped lead ballast that will perfectly match the keel. Fingers crossed!

The ballast male-molds have been removed in the image below and you can only see the inner core and the aft shaped keel.

Wampum VM Vintage Marblehead wood radio control sailboat

This picture shows how the fin has been shaped.

More later!

Aloha!

Comments

IOM Sailboat Stand

I made an IOM boat stand! The plans are from David Jensen in Bellevue, WA, USA. I found the plans through someone else's blog here , and a model sailboat club from Australia here . It was pretty straightforward to build. My only contribution to the design is that I laser cut the cradle out of 1/8" Lite Ply. I made eight copies, and then epoxy laminated two sets of four each. Turned out really well. If you wish to laser cut your own set, here is my DWG file . You'll have to have your own laser cutter, or send the job to a laser cutting company like National Balsa . Here are the original plans , and here are the original plans for just the cradle . Thanks to David Jensen!! Note that in the picture below, my boat is not finished! Yikes. You can't see it in this image, but there's a small chuck of self-stick foam behind the bulb to protect the bulb. I'll eventually incorporate some Velcro or a strap of some sort to hold the bulb in place so

IOM Rig Box (IOM Sail Box) plans

So all the cool IOM kids seem to have nice wooden boxes to store their rigs in. This might be my next quick project then, so that I can pretend to be cool too. :-P The rig box images that I've seen online are mostly similar, and would work well, but David Jensen from Bellevue, WA, USA (The same guy who designed a fantastic IOM boat stand I posted about earlier) has a really nice design that he shared on RC Groups . Or if that link doesn't work, the go here and search for " IOM sail box " or " IOM rig box ". It holds three sets of rigs for the A, B, and C rigs. He also has a nifty way to attach his IOM boat stand, with a boat on it, to the rig box. His rig box has wheels attached, so once everything is loaded up he just wheels it to the launch spot. Very nice! There are other sources online. They show different variations of the same type of sail box. Here's a nice looking one . Here's a YouTube video of a really nice one . Wil

A Wooden "Alternative" IOM RC Sailboat

Being forced to stay home due to the Coronavirus quarantine has had a positive impact on my boat building. I still haven't been able to sail my newly completed Vickers V8 IOM, yet have just planked and glassed a wooden Alternative IOM . It only took me eight days. It usually takes a couple weeks. I haven't been motivated to blog about it, but I started planking on 5 April and finished planking last night. Today I sanded and have fiberglassed the outside. The Alternative by Brad Gibson was a challenge to plank due to its up-swept bow and flared sheer near the bow. It turned out okay, but as any builder will tell you, there are goofs all over. One that I only discovered after sanding is a lighter colored plank on the starboard side. It really showed up after fiberglassing as the epoxy brought it out... GAAAAH! How did that get there? The other goofs I'll let you find, but that one is pretty obvious. Here's how it looks so far: Here you can see that mu

IOM Alignment and Measuring Jig (UPDATED)

I need to start to consider how I'll mount the fin and bulb, and get it all straight, so I made a 3D modeled alignment jig: Ian Dundas in Scottland sent me pictures of his setup. I just bought a laser level too! He does amazing work and has been a great help in this project so far. There is also another jig featured on page 14 of the winter 2008 Canadian Radio Yacht Association (CRYA) newsletter that features one. It's by Lawire Neish. Read it here . I took both those designs and made my own version that features sliding cradles for the hull, a fixed waterline sight, proper depth to cradles for the bulb, etc... Most of the parts can be laser cut, and the two end pieces and the base can easily be cut on a tablesaw. It has fixed waterline sights that are 420mm above the top edges of the bulb sliders in the base. The fore and aft cradles can be slid up and down to adjust the waterline of the hull. You'll see that the overall interior length is 1003mm t

Search This Blog