Author Topic: 125 Inch Pilatus Porter PC-6 Kit  (Read 2248 times)

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Offline Lane C.

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Re: 125 Inch Pilatus Porter PC-6 Kit
« Reply #75 on: August 09, 2018, 03:02:32 pm »
Barry, Glad you are ready to get out of the house! Won't be long till you can escape! ha

Offline Lane C.

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Re: 125 Inch Pilatus Porter PC-6 Kit
« Reply #76 on: August 09, 2018, 07:10:29 pm »
Glassed the elevators today. Just about done with glassing. Finished rudder as well. Next will move to covering the wings with Sig Coverall.

Offline Lane C.

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Re: 125 Inch Pilatus Porter PC-6 Kit
« Reply #77 on: August 13, 2018, 06:16:29 am »
Getting done with the glassing. Added the fences to the horizontal tail and gave them a coating of Z-Poxy to seal them up. Sanded down the cowl to remove the gloss paint in prep for the grey primer. Will start the wing covering with Sig Coverall next.

I'm not exactly sure why they added the fences on the H tail. It appears that they are there to keep the elevator counter-balances "clean," but that's just a guess. Fences are usually on the wings.

I've been spending a fair amount of time looking for photos of the top and bottom of the wing. I want to see how the US ARMY markings are used. Finally found a plastic model of the Porter to go by. Plastic Modelers are usually very accurate on their markings. Photo shows how the top and bottom wing is marked. The opposite wing half gets the Star and Bar. Cassie Graphics should be able to make these paint masks easily.
« Last Edit: August 13, 2018, 06:27:59 am by Lane C. »

Offline Lane C.

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Re: 125 Inch Pilatus Porter PC-6 Kit
« Reply #78 on: August 14, 2018, 06:59:57 pm »
Got some seats made for the cockpit. Pilot needed something to anchor him and one seat woulda looked strange. Guess I'll get going on covering the wings next.

Offline Lane C.

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Re: 125 Inch Pilatus Porter PC-6 Kit
« Reply #79 on: August 15, 2018, 02:00:44 pm »
Now to wing covering. Had a low spot on the left wing where the trailing edge and flap meet. Filled it with Dolphin Glaze. Then, sanded all the wing parts with a foam sander and gave them 3 coats of Nitrate dope thinned 2.5 to 1. Sanded them in between coats. Dried very fast. Now, to get the Sig Coverall cut and prime the wood with Sig Stick It. Been a while since I used Coverall. Will start with a flap or aileron.

Offline Lane C.

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Re: 125 Inch Pilatus Porter PC-6 Kit
« Reply #80 on: August 15, 2018, 06:51:35 pm »
Kept at it this afternoon. Covered one flap with Koverall. Then laid on 2 coats of Nitrate out of the can with a brush. Probably should be thinning that out as well. Went OK. Koverall is a LOT easier to handle than the glass cloth. Glass cloth gets snags and runs like crazy. Koverall is actually pretty tough stuff. It's very close to full scale aircraft covering, I would bet. I pulled out the cutting mats and bumped them together for the Koverall.

Offline Lane C.

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Re: 125 Inch Pilatus Porter PC-6 Kit
« Reply #81 on: August 16, 2018, 09:40:36 pm »
I completed another flap and aileron today with Coverall. Got one more aileron to do tomorrow. Then the left and right wing halves. Kinda getting interested in doing the paint job. Covering is going OK now that I am back in the hang of it. I shot some grey primer on the first flap I did yesterday to see what it looked like painted. Needs a few more coats of primer to even it out, with sanding.


Offline Lane C.

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Re: 125 Inch Pilatus Porter PC-6 Kit
« Reply #82 on: August 19, 2018, 04:51:54 pm »
Covered one half wing today. Went OK.

Offline Joystick

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Re: 125 Inch Pilatus Porter PC-6 Kit
« Reply #83 on: August 20, 2018, 06:56:52 am »
I always like the way the Koverall looks in that stage.

Looking great.
CHECK SIX

Signed: Steve Rogers (As far as you know)

Nothing is foolproof to a sufficiently talented fool.

Offline Lane C.

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Re: 125 Inch Pilatus Porter PC-6 Kit
« Reply #84 on: August 20, 2018, 07:14:06 am »
Hi Steve, thanks. I haven't used Koverall in a long while. I was worried that the Koverall would be in small sheets and have to piece it together on both the top and bottom wing half. Haha. The LARGE package is a single sheet that's 5 yards (15 feet) by 60 inches wide! I could do several Porter wings and fuselages and still have plenty left over. This is the first time I've used Stix-it too. Last time I think I used the Butyrate dope method to glue it on. Not as easy as Stix-It. One more wing half to cover and then it's on to priming and painting. Also on the Stix-It, I am sure it's the same adhesive as Monokote and other iron ons as it smells the same when I heat it up. Kinda pricey, but one 8 OZ can goes a long way.

Offline Lane C.

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Re: 125 Inch Pilatus Porter PC-6 Kit
« Reply #85 on: August 21, 2018, 04:34:51 pm »
Had to take a few steps backward and fix a boo boo. I added a plywood gusset to a wing rib because I pushed the aluminum wing tube in too far and it cracked a rib. Patched it up fine, but forgot to recut the access hole in the rib for the aileron servo wires back to the fuselage! Crap! Had no choice but to cut the Koverall, fix the goof, and recover. Stuff happens! But, almost through with both wings and can move on to priming tomorrow. Also, just about to finish gluing the flap and aileron on the left wing. Last photo is the finished right wing, ready to prime and paint.

Offline Joystick

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Re: 125 Inch Pilatus Porter PC-6 Kit
« Reply #86 on: August 22, 2018, 05:27:41 am »
I've had similar problems with servo wires. I just put my drill bit on a long extension and drill from the root.
CHECK SIX

Signed: Steve Rogers (As far as you know)

Nothing is foolproof to a sufficiently talented fool.

Offline Lane C.

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Re: 125 Inch Pilatus Porter PC-6 Kit
« Reply #87 on: August 22, 2018, 07:17:03 am »
Steve, if I had noticed this much later, after painting, then I could have used the drill. But, had all the covering stuff out on the table, so just cut her open and fixed the cancer! ha. Glad to be in the painting stage now. Looked at the temp gage on the porch and it's 70 Deg F this morning. Very nice. Should make nice painting weather.

Offline dlabby

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Re: 125 Inch Pilatus Porter PC-6 Kit
« Reply #88 on: August 22, 2018, 09:19:57 am »
I need to talk to you some time about Koverall and Stix-it. But for now: Did you try to find any Solartex? Koverall feels kinda clothy--has texture? Koverall has no adhesive of it's own. Do you heat it after gluing on to stretch it? will primer be enough to fill in clothy holes? Just wandering all this cause I'm considering a biplane build this winter.
Darrell Abby

Offline Lane C.

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Re: 125 Inch Pilatus Porter PC-6 Kit
« Reply #89 on: August 22, 2018, 12:21:03 pm »
Hi Darrell, my post today may answer some of your questions about primer. This morning I shot 3 coats on the wings and sanded in between coats. Before covering, you need a couple of coats of Nitrate Dope sprayed on to seal the balsa for the glue. The Koverall then needs a glue applied to the balsa with a small brush. Stix-It works well. Once you glue the covering on, then you heat it to shrink. It's almost like a fabric iron on such as Solar-Tex. And after it's on the model, then you brush on 2 coats of Nitrate Dope to seal it. Then you can prime it and paint over that. The 3 coats I laid down look pretty good, but I could keep going to make it look like an auto finish with more and more primer coats. Solar-Tex is sold out of the Natural linen color and almost every other color as well. So, until Ora-Tex can gen-up with their close-copy, there won't be any good fabric coverings, that I know about anyway. I use the Advantage 301 high build grey primer. Lee Rice and Jack Haynes use this primer also. As far as feel of the Koverall, it is about as close to genuine fabric aircraft covering as you can get.