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Mirage 217 -Bringing it back

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Mirage 217 -Bringing it back

Old 06-25-2024, 12:44 AM
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Photo-wise, it's not very exciting as visually things didn't change all that much. Completed sealing all the foam with resin at the top.

Progress has been pretty good though. made the battery boxes out of Coosa and glassed them (mostly) Marked out the stringers and bulkheads, bedded and fastened all the floor in place, everywhere.

In thought I am planning the above-floor bulkheads to both reduce weight a little, and strengthen the boat.

After installing the floor, I decided that, although strong, the floor above the fuel tank had a hollow sound, due to the airspace above the tank. So foam above the tank it is.

I sloped the floor, and installed a floor drain piped directly to the bilge, and foamed in the remaining floor section.

Hopefully by compartmentalizing and gel coating all the segments, it will contain any future water ingress, instead of spreading the water everywhere.

Pretty much completely used up my last foam kit.

In the meantime, I glassed in quite a few detail areas of the engine bay, and perimeter of the floor with mat and a layer of 1708. That's the hard part. Laying mat on the flat is a breeze compared to the details. Hopefully there this week

I noticed the subwoofers had the paper surround completely disintegrated. I never looked closely, but the front speakers had the same issue. I ordered a complete set, with LED backlighting. I ordered a small fire-extinguisher cabinet. Hoping that looks good and protects the extinguisher from ambient weathering and rust. The cockpit one left rust stains before.
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Old 06-27-2024, 04:22 PM
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Quick photo of the floor flatness prep in getting ready for 'glass

First layer of 1708 on the main floor section, gotta go buy a little more cloth now




Last edited by DougB; 06-27-2024 at 10:27 PM.
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87MirageIntruder (06-28-2024)
Old 06-29-2024, 04:08 PM
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Next layer of 1708 going on to the main floor. Today spending most of the day fairing everything, prepping the engine bay for more cloth and planning everything above the floor. I weighed doing some sections in carbon fibre just to be fancy, but then I'd have to use coosa in most places to get the black background colour. I opted for carboncore as it's a lot lighter and I don't need the mass of the coosa in most places.



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Old 07-01-2024, 06:01 PM
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Nice work!
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DougB (07-02-2024)
Old 07-02-2024, 11:37 AM
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It was an interesting long weekend. I was really hoping to get a lot more completed, but the material that I'd used years ago to mould the fiberglass completely failed this time around. They must have changed the structure of the material. The face was fine, but the face this time around reacted with the gelcoat, that to make things worse, the core was much weaker, like layered paper.

I ended up chiselling everything off the gelcoat with a painter's scraper. It took hours and totally killed the momentum. I recovered a bit Monday night, but quite frustrating. The good thing is, that the pieces will be within the engine bay, and the substandard gel will only be an only an annoyance to me.

Changed plans for moulding, I have another material to mould my gloss gel from, so will see this week how it works.

Anyway, dropped the batteries in and planning to start the power hookup/wiring. At least it's progress. I decided to try and get this all done because I'm too old to be curled up in a ball in the engine bay, so will hold off the bulkhead glassing until I get most of the work done.

I'm also mounting any through-floor components on pedestals as I am pretty certain that a lot of moisture could have found it's way through the top, to the old foam before. I want to make sure that doesn't happen again



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87MirageIntruder (07-03-2024)
Old 07-06-2024, 11:48 PM
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Lots going on this week. A lot more detail things, but working my way out of the engine bay now. Summer has also arrived and with temperature shooting up, I am having to be much more conservative with my catalyst. Working through, means making a lot of equipment mounting areas, stand-offs and I also have some extendible paddles which I made a mount for across the engine.

Finally cabo-silled in the rear bulkheads. I am making most everything above the floor out of carbon core. Much lighter and simpler to work with. I don't know how much lighter it will end up making the boat. Maybe 50-100 lbs, maybe more, who knows.

The coosa is lighter than the old plywood also. And no more wet foam.Each sheet of coosa saves 18 lbs over plywood, and the carbon core is 5.5 lbs per sheet. With 5 & 5 sheets the net material weight savings is about 400 + lbs, but I am using more glass and mat in areas, so will figure that out in a few weeks, when I add up the resin weight.

Anyway, working on a new moulding material so have high hopes for that tomorrow.




I expanded what I did last time and made a much larger removable panel for ease of servicing the engine, changing belts, water pump etc.

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87MirageIntruder (07-08-2024)
Old 07-10-2024, 10:49 PM
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Honestly the pressure is on a bit to get this all ready for the lake. With that on the horizon and the guts of the boat fiberglassing taking so long, the thoughts of upgraded electronics, new dash and completely revamping the upholstery will need to wait until after the summer.

Quite frankly right now the weather is so hot that I've had a crazy time figuring out my catalyst ratio. It changes from day to day. And when using lower ratios, it's really challenging to find the percentage that kicks the resin in a decent time, without going too fast. When I reduce just a tiny bit, all of a sudden my parts take past overnight to kick.

So ultimately I am going with the old upholstery for this summer, and existing gauges along with postponing any upgrades to the cuddy cabin or anchor locker.

So on to the pics, rear bulkhead is glassed in with my larger inspection area, and the seat support is cabosilled in, which will also get mat and serve as a strengthening bulkhead. test fitted the upholstery sections.
At the helm, I've fitted back the existing panels. They were also intended to be lightweight fully glassed in bulkheads, but that will be after the summer sometime before next summer. Even at that feels very soild. Much more than before.

I have some robust battery hold downs, that should keep things tight, if we accidentally jump a wave ;-)





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87MirageIntruder (07-11-2024)
Old 07-13-2024, 07:50 PM
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Last coat of mat, sanding and first coat of gelcoat int eh cockpit. Hopefully last coat and mount the bolster


went through a lot of sandpaper on this pass

seats tonight
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87MirageIntruder (07-15-2024)
Old 07-19-2024, 11:41 PM
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Final version of the new horns carbon fibre trim panel, with the adhesive dried and a little bit of trim tape to match


There's a lot to catch up on a lot or rigging, fitting and putting things back. One of my more troubling areas was trying to figure out what to do with my old twin non working horns. I am pretty sure the design is long obsolete, so I picked up a couple of drop in horns, modded them to fit my opening then made some coosa inserts.
After glassing the inserts into place, I got to work on my cover.
I picked up acarbon fibre panel to match the black gelcoat, and patterned some sound holes.

A fun little project for the night and looks much better than the older plastic grilles that were on the horns, and probably a little better than the oval covers that came with the horn.

Now I am more legal, with working horns. ;-)








Last edited by DougB; 07-20-2024 at 01:58 PM.
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