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Posted by ChillPhatCat | Sep 01, 2016 @ 09:26 AM | 2,031 Views
I completely finished the horizontal stabilizer so I spent some time sanding it and making it nice and smooth and decided to get some inspiration by covering it since it was the first entirely complete piece.

I decided that I'm doing transparent red on the bottom of the plane and solid red on the top and will go with the typical Pitts color scheme: red base with white checks and strips with this being the only modification... I kind of want to remember this build as it's the first in a line of planned Pitts Specials and what better way than to have a permanent peek under the covering? I know solid structures aren't that sexy with transparent covering but I love the depth and iridescence.
Posted by ChillPhatCat | Aug 22, 2016 @ 07:07 AM | 1,641 Views
I had a small issue with the wing joint, the root rib on the starboard wing was angled outward at the leading edge giving the wing a minor sweep. Last night I finally ripped off the band-aid and broke a glue joint to reposition he root rib. Once it was corrected I couldn't resist joining the wings... Also reduces the number of edges that can take a hit of hangar rash.

And of course we all know what happens once you've got most of the final pieces together... Yep, a mock up! Granted, there's no top wing yet but it could fly right? Haha
Posted by ChillPhatCat | Aug 14, 2016 @ 05:23 PM | 658 Views
I have been picking away at this project here and there since the last entry and it is starting to really take shape. I added the turtle deck formers and sheeting, test fit the fuel tank, formed the main gear pieces (pic below before I cut the pieces apart) and the forward cabane struts, and mounted the engine.

While test fitting the fuel tank I realized that I had bought an 8 ounce and I had actually intended to buy a 6 ounce. The 8 is a tight fit there so it is just as well. I will be purchasing a 6 ounce with my next purchases. I am waiting on some Sullivan flex gold n rod pushrods to arrive in the mail so I can fit them and then join the bottom wings and fit the mounting hardware.

I am not sure about the right thrust it looks more like 2-3 degrees now that I have the engine on there. I may have to dial it back a tick so I'll have to fly this before I make the cowl which I am planning to do in balsa/fiberglass.

Lots of pics below....Continue Reading
Posted by ChillPhatCat | Jul 08, 2016 @ 10:48 AM | 1,236 Views
First Pic: I finished the bottom of the horizontal stab with simulated ribs, it's a little rough because I put down the edges first and then the ribs, in the end I'm going to sand off almost all of that wood around the edge, if not all of it.

Second Pic: I decided to lay down the ribs for the top of the stabilizer first, and will just fill the edge in later.

Third and Fourth Pics: Added Former F4 up on top which will be just ahead of the instrument panel, I also added plywood doublers for the wing saddle that extend to the back of the firewall, and I trimmed most of the excess wood off of the front and roughly cut out most of the balsa in the wing area, I'll final fit this once the two bottom wings are complete. I have my engine mount arriving today and will soon be drilling and mounting that so I can attach the firewall. The plans say to shim the motor mount for 1 degree of right thrust, but I'm just going to glue the firewall in at the correct angle.
Posted by ChillPhatCat | Jun 30, 2016 @ 07:50 AM | 1,805 Views
In all of my builds to date I have never been able to get the wings done without being distracted by the fuselage. The fuselage is what gives the plane character in my opinion... it's where all the nice curves are and boy do I like curves!

So I had been thinking about the fuselage for a while... I finally broke down and decided that I needed real professionally cut sticks so that everything is guaranteed straight... Turns out the scroll saw is abysmal at ripping sheets (surprise!). Anyway I waited a couple weeks for fathers day when I knew the sticks would be arriving.

I pre-drilled pushrod guides so that they will basically plug right in when I get to that point... pushrods are another thing I tend to neglect and it takes a lot more effort to run them when you do it later rather than sooner. The fuse is built from back to front with the turtle deck floor used to get everything straight. The lower back formers are glued down to the underside of the deck then I used the bottom stringers to stabilize the assembly. The top half of the fuselage sides were then laid down to further bolster the structure. Next step is to work out the lower wing cradle, toss some plywood in the front and attach forward formers, then the turtle deck is built.

On the wing front I did start the wing tip because it makes the wing look a lot more finished.
Posted by ChillPhatCat | May 16, 2016 @ 08:34 AM | 1,467 Views
Built up the basic skeleton of the lower port wing this morning before work. I'm going to have to come up with a better jig... It was a bear to keep this straight. My notches were not so good in the ribs either... Had to fit each rib twice. Using the hardest balsa I had for these spars, in lieu of spruce.
Posted by ChillPhatCat | May 01, 2016 @ 02:39 PM | 4,987 Views
Well the scroll saw is too loud for the rest of the residents during quiet time so I went about this task the medieval way... It was a pretty productive session. The balsa wasn't too bad but even 1/16" ply is brutal. Still there's some sadistic pleasure to be had cutting pieces with a blade. I'm leaving the paper outlines on the balsa pieces until final sanding to make sure I don't lose anything. Next I need to make cutouts in the big formers for fuel tank etc. and I've got to rip a couple sheets of balsa to get 1/4x1/8 sticks... I'm too cheap to buy bundles of sticks.
Posted by ChillPhatCat | Apr 23, 2016 @ 06:34 PM | 1,849 Views
Bought a propane torch today and took it for a test bend. I'm never bending cold music wire again.

Also I cut out 20/40 of the required ribs. More to come when I start gluing things together.
Posted by ChillPhatCat | Apr 09, 2016 @ 05:36 PM | 2,241 Views
My scroll saw skills are a little rusty but not terrible.
Posted by ChillPhatCat | Apr 09, 2016 @ 12:04 PM | 2,226 Views
I have got the spinner fitted... not as easy as it sounds. I bought a 2" Dave Brown Vortech spinner and the recommended short prop adapter... well with this 12" prop the short adapter was about 1mm too long. I considered trimming it or getting a bigger spinner but decided to look around. It turns out that the OS .25-.46 GP Spinner nut was 1.6mm shorter so I went and bought that. The secondary issue is that the spinner came with a 5mm bolt which is incompatible with just about every nut... including all of the DB adapters! So I also bought some stubby 10-32 bolts... And as you can see it all fits... the prop is even a perfect profile for the cutout in the spinner so there will be no need to trim it.

The other picture shows my prep to cut ribs. I glue sticked them to the sheet and plan to just cut along the pattern... a stack of short pieces to mass produce them.