First off, I got myself a hangar! I’ve been checking the hangars at the San Martin airport for a while, and finally got in contact with them and got the hangar last Wednesday! It’s a nice T hangar that’s north facing (shaded all day), and has plenty of room for the project. I’ll be migrating there over the next couple weeks.
Before making the big move, there’s still a couple things that I want to finish up in the garage. The first thing was that when I installed the canopy release mechanism, I realized that the flap housing was being pushed backwards and wouldn’t install. So I modified the mounting holes, and everything lines up much nicer.
This will get installed with a couple washers and the offset of the holes won’t be noticed.
I also installed the elevator push rod that goes through the center tunnel, since I had everything off. It needed some coaxing but it installed just fine.
The push rod connects the control sticks to the bell crank that’s right behind the baggage bulkhead.
I also cut some two conductor wire to length for the flap motor power lines, and added a couple connectors so that it’s removable. Once it’s installed this will get a zip tie wrapped around it between the tabs and it will be fully secure.
Next up is to finish the canopy frame.
Today I finally got off my lazy butt and got back in the garage. It’s been more than a month since I’ve touched the project.
I started by making a giant list of all the tasks that I could think of in order to finish the project.
The goal being that I can estimate effort and duration of each task. Given everything I could think of and the effort needed, it looks like I have about 500hours left (give or take).
Once I finished this, I decided to something on the wings that was easy, to get back in the mood.
The quickbuild wings need their rear spare modified for the -7. The wings are identical for the -8, and this is why they are larger. I marked the rear spars where they needed to be trimmed.
I then used my dremel with cutoff wheel to cut the spare down to just before the line. I will hand file the rest when I am fitting the wings.
Today I had my friend Norio over to help me out a bit on the project. After a few hours of catching up and some good bbq we spend some time in the shop. No pictures tonight, but we got the final wing skins dimpled and nearly ready to install. Left to do is a bit more edge finishing and then riveting.
Today I installed my beautiful MT propeller! It’s a huge milestone!
I received it last Thursday, and I had to finish a couple other things that needed to be installed behind the starter ring, namely the alternator mounting bracket. I also took this opportunity to pull the starter and grind off the mounting boss that was interfering with the intake snorkel.
Here you can see it after I ground it down. Now the snorkel can fit without and modification.
I then took my time installing the prop. The mounting bolts can only turn a couple turns at a time before having to wiggle the prop and tighten another one.
Once I got them all tighten I torqued it by hand for now, but MT calls for 65ft-lbs if torque on the bolts and then safety wiring them in pairs. I will do that later just in case (I really really hope not) I have to take the prop off again.
It’s just so cool to look at.
I just had to test fit the top cowl, it’s still high by about 3/4 of an inch, it’s sitting on the baffles, which I have yet to modify. Now that the prop is on I can start with the cowl fitting and then continue working on the baffles.
And of course…Happy Mothers Day!
Today it was Christmas in May! I got my prop delivered by American Propeller out of Redding, CA. I ordered a three blade MT Prop. It’s a composite, constant speed propeller.
Tracy from American Propeller did a great job unloading it from the truck and placing it in the shop.
I had to make some room (still have to clean up a bit) to put the prop on the table. I will install it for the first time this weekend. here’s my hand on the widest part of the blade for comparison. It’s a 72″ diameter prop.
I took the spinner off and man is that some gorgeous machining and fabrication.
I’m thoroughly impressed with MT prop and I’m sure the performance will match.
This weekend I spent a few hours continuing the work on the baffle. This primarily was focused on the baffle fit around the valve cover gaskets. I had the parts on and off several times to remove more material and then check the fit.
I then spent time on the inlet ramps.
Here you can see the left and right inlet ramps. The left ramp (cylinder 2) will also have the intake filter. This piece will get modified to accept the filter as well as the snorkel that routes air down and to the air intake on the engine.
Just to give myself a change of pace, I spent some time making the remaining two pushrods. The elevator pushrods consist of a smaller rod that attaches the control sticks to the elevator bellcrank, and then from the bellcrank back to the elevators.
On a side note, my interior from Classic Aero Desings arrived! I’m going with a full custom interior using the Sportsman2 side panels and Aviator seats. They are absolutely perfect and look SO good!
I’m not quite ready to install them just yet, but here’s a sneak peak at one of the seats.
The metal work on the baffle is one of the most complex parts of the plane. I started out tonight by continuing on the right aft baffle.
I prepped and riveted all the doubler plates.
Here are the doubler plates riveted to the #3 cylinder baffle. I also riveted on the heat muff air intake and screen. The stock intake from vans is quite flimsy. I might replace it with something stronger.
I’m waiting to rivet the side and aft baffle parts together before final fitting on the engine.
I then riveted the doublers on to the #1 and #2 cylinder baffles and test fitted them onto the engine.
It’s starting to come together. I then began fitting the forward intake ramps and reinforcements.
I’m using a custom prop oil line from TS flightlines so the hole for the oil line will have to be slightly larger.
Here you can see a test fit. I’ll have to crest a custom gasket to go around the hose to ensure no relative movement. There’s a small amount of roof around the hose, but I’ll have to open it up a little bit.