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Cox Engine of The Month
It’s the Pitts….
Page 2 of 3
Page 2 of 3 • 1, 2, 3
Re: It’s the Pitts….
Once again, Thank You, Eric!
I think this one will finish out well under that, which bodes well for flying.
I took a little break from chopping balsa, and covered the I struts. The size made it interesting. I ended up clamping the tabs in a small vise, and using the trim iron to cover them. They came out pretty good.
Sheeting the forward deck is the least fun part of building any biplane. I can't put it off any longer, so let's get started. I cut the first piece of sheeting, then made the notches for the cabanes, a little at a time, checking the fit each time. Got it to where it would work and applied the glue. Started attaching it to the bulkheads, and it split full length!
So, here's my second attempt, and it was more successful.
I think this one will finish out well under that, which bodes well for flying.
I took a little break from chopping balsa, and covered the I struts. The size made it interesting. I ended up clamping the tabs in a small vise, and using the trim iron to cover them. They came out pretty good.
Sheeting the forward deck is the least fun part of building any biplane. I can't put it off any longer, so let's get started. I cut the first piece of sheeting, then made the notches for the cabanes, a little at a time, checking the fit each time. Got it to where it would work and applied the glue. Started attaching it to the bulkheads, and it split full length!
So, here's my second attempt, and it was more successful.
duaneh- Gold Member
- Posts : 223
Join date : 2019-04-06
Re: It’s the Pitts….
It’s coming along well. What plans do you have for the canopy?
Cribbs74- Moderator
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Posts : 11906
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK
Re: It’s the Pitts….
I'm going to have to make a canopy, there's nothing available that's even close to what I need. I will carve a plug. After that:
Plan A is to heat shrink one from a plastic bottle. A lot of guys do this, but I've never tried it.
Plan B is to take the plug to Brian at Dynamic Balsa, about an hour from me. He does a lot of vac-forming, and I'm sure can pull one for me.
Plan A is to heat shrink one from a plastic bottle. A lot of guys do this, but I've never tried it.
Plan B is to take the plug to Brian at Dynamic Balsa, about an hour from me. He does a lot of vac-forming, and I'm sure can pull one for me.
duaneh- Gold Member
- Posts : 223
Join date : 2019-04-06
Re: It’s the Pitts….
Yay!
I got the fuse front deck sheeted. I was able to get it in 3 pieces, plus 2 tiny scraps for fill in the 'vee' of the cabanes.
The key was to pre-cut pieces slightly oversize, moisten and rubber band them around a 1" dowel. When they dried, they had a curve that approximated what I needed.
I rough cut the cockpit opening. The marked lines represent where the canopy will fit. I will wait to do the final trimming until the canopy is in hand.
With the front of the fuse at its final size, I was able to finish shaping the cowl.
I got the fuse front deck sheeted. I was able to get it in 3 pieces, plus 2 tiny scraps for fill in the 'vee' of the cabanes.
The key was to pre-cut pieces slightly oversize, moisten and rubber band them around a 1" dowel. When they dried, they had a curve that approximated what I needed.
I rough cut the cockpit opening. The marked lines represent where the canopy will fit. I will wait to do the final trimming until the canopy is in hand.
With the front of the fuse at its final size, I was able to finish shaping the cowl.
duaneh- Gold Member
- Posts : 223
Join date : 2019-04-06
Re: It’s the Pitts….
I’m now at a point where I can start covering, so a review of the documentation is in order. For such a well-known airplane, it’s surprising how hard it is to find photos.
Here is a Cox ad that features the full size plane. One thing unique to Art's Pitts is that the blue 'rudder' stripe is actually on the fin.
Here is a very interesting picture. Presumably taken shortly after the Cox sponsorship ended, the logo has simply been covered with a Gumout sticker. Note also the front cockpit windshield is in place. And most importantly, this is the only picture I have seen that shows the undersurface of the wings. The top wing appears to be solid red behind the LE stripe, the bottom wing white with red stars. Also, the inboard star appears to be larger than the outboard.
Finally, a big Thank You to one of our forum sponsors. I can’t imagine trying to create these tiny graphics myself.
Here is a Cox ad that features the full size plane. One thing unique to Art's Pitts is that the blue 'rudder' stripe is actually on the fin.
Here is a very interesting picture. Presumably taken shortly after the Cox sponsorship ended, the logo has simply been covered with a Gumout sticker. Note also the front cockpit windshield is in place. And most importantly, this is the only picture I have seen that shows the undersurface of the wings. The top wing appears to be solid red behind the LE stripe, the bottom wing white with red stars. Also, the inboard star appears to be larger than the outboard.
Finally, a big Thank You to one of our forum sponsors. I can’t imagine trying to create these tiny graphics myself.
duaneh- Gold Member
- Posts : 223
Join date : 2019-04-06
Re: It’s the Pitts….
Following your thread.
That sure is tiny, the picture next to the coffee cup is revealing. Great job, deserves that new Cox engine.
Bob
That sure is tiny, the picture next to the coffee cup is revealing. Great job, deserves that new Cox engine.
Bob
rsv1cox- Top Poster
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Posts : 11065
Join date : 2014-08-18
Location : West Virginia
Re: It’s the Pitts….
The Pitts is coming right along , i bet those struts were a Pain to cover too and nothing like a wood split LOL Nice decals Matt sent you !!
getback- Top Poster
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Posts : 10376
Join date : 2013-01-18
Age : 67
Location : julian , NC
Re: It’s the Pitts….
I got a good start on the covering. The wings are done. It was a little tedious putting on all the red stripes, but the scheme is Monokote friendly. All straight lines.
Notice the wing dowel and screw holes. This will be a “take-apart” airplane. Makes maintenance and repairs a lot easier.
The stab was easy, just solid red. I got the white on the fin & rudder, tail stripes will be next. I would really like to get the N# on the tail, but I just don’t think I can do it. Too small, and it isn’t just black letters, there is a white border around them.
Notice the wing dowel and screw holes. This will be a “take-apart” airplane. Makes maintenance and repairs a lot easier.
The stab was easy, just solid red. I got the white on the fin & rudder, tail stripes will be next. I would really like to get the N# on the tail, but I just don’t think I can do it. Too small, and it isn’t just black letters, there is a white border around them.
duaneh- Gold Member
- Posts : 223
Join date : 2019-04-06
Re: It’s the Pitts….
ohhh! duaneh !! ... that looks wonderful !! ... what a beautiful job !! ... Sincere congratulations !!
MauricioB- Top Poster
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Join date : 2016-02-16
Age : 53
Location : ARG
Re: It’s the Pitts….
great job
akjgardner- Diamond Member
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Posts : 1576
Join date : 2014-12-28
Age : 65
Location : Greensberg Indiana
Re: It’s the Pitts….
The N13AS doesn't seem to bee outlined with white ? Either way Fantastic Fun !
getback- Top Poster
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Posts : 10376
Join date : 2013-01-18
Age : 67
Location : julian , NC
Cowl Finishing
I've been working on the cowl a little at a time. The finishing process takes a while, but it's done now.
I decided early on that I wanted the cowl to be glassed and painted for durability. I’ve done many giant scale RC ships this way, it was really fun to apply the same process in miniature to this tiny cowl.
After construction and shaping was complete, I covered it with ¾ oz. glass cloth and finishing resin. Before sanding, it was really ugly.
I sanded with 100 grit to knock down the edges, smoothed it with 220 grit, and applied a flow coat of resin. Also brushed resin on the inside for fuel proofing. When that cured, I wet sanded with 400 grit. Looking much better.
Next was a white base coat, necessary to get a bright red for the final color. Then, we are finally ready for color. I used Rustoleum rattle can paint. Finished weight of the cowl is 5 grams. We had a sunny day today, so I took it out on the deck for a picture.
I decided early on that I wanted the cowl to be glassed and painted for durability. I’ve done many giant scale RC ships this way, it was really fun to apply the same process in miniature to this tiny cowl.
After construction and shaping was complete, I covered it with ¾ oz. glass cloth and finishing resin. Before sanding, it was really ugly.
I sanded with 100 grit to knock down the edges, smoothed it with 220 grit, and applied a flow coat of resin. Also brushed resin on the inside for fuel proofing. When that cured, I wet sanded with 400 grit. Looking much better.
Next was a white base coat, necessary to get a bright red for the final color. Then, we are finally ready for color. I used Rustoleum rattle can paint. Finished weight of the cowl is 5 grams. We had a sunny day today, so I took it out on the deck for a picture.
duaneh- Gold Member
- Posts : 223
Join date : 2019-04-06
Re: It’s the Pitts….
BRAVO.... Very Nice Work
akjgardner- Diamond Member
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Posts : 1576
Join date : 2014-12-28
Age : 65
Location : Greensberg Indiana
Re: It’s the Pitts….
I'd be afraid to fly it! Lookin' good!
OhBee- Platinum Member
- Posts : 698
Join date : 2016-03-23
Age : 73
Location : Minnesota
Re: It’s the Pitts….
Now thats when your work really pays off , that looks fantastic !! What was ur style of resin for the glass cloth ?
getback- Top Poster
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Posts : 10376
Join date : 2013-01-18
Age : 67
Location : julian , NC
Re: It’s the Pitts….
Stellar work!
Concerning lettering and decals, it wouldn’t be much effort for a sign shop to print lettering onto vinyl for easy application. My brother in law does double color lettering all the time. I would send you his way, but he operates on a larger scale.
He has in the past done some vinyl work for me in the modeling realm, but I don’t bother him with that stuff anymore.
Just find a small outfit online and see what they can do.
I only bring this up as your model deserves the very best!
Ron
Concerning lettering and decals, it wouldn’t be much effort for a sign shop to print lettering onto vinyl for easy application. My brother in law does double color lettering all the time. I would send you his way, but he operates on a larger scale.
He has in the past done some vinyl work for me in the modeling realm, but I don’t bother him with that stuff anymore.
Just find a small outfit online and see what they can do.
I only bring this up as your model deserves the very best!
Ron
Cribbs74- Moderator
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Posts : 11906
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK
Re: It’s the Pitts….
Cribbs74 wrote:Stellar work!
Concerning lettering and decals, it wouldn’t be much effort for a sign shop to print lettering onto vinyl for easy application. My brother in law does double color lettering all the time. I would send you his way, but he operates on a larger scale.
He has in the past done some vinyl work for me in the modeling realm, but I don’t bother him with that stuff anymore.
Just find a small outfit online and see what they can do.
I only bring this up as your model deserves the very best!
Ron
I keep seeing a couple of companies mentioned in other sites of people who do make vinyl stickers for rockets and planes:
https://stickershock23.com/product/name-tags-registration-number/
https://callie-graphics.com/
I’m gonna use one of them as soon as I build something thats “Stickerworthy” !
Marleysky- Top Poster
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Posts : 3618
Join date : 2014-09-28
Age : 71
Location : Grand Rapids, MI
Canopy
Thanks for all the positive comments, guys.
Eric, I used Zap epoxy finishing resin on the cowling.
There’s just no way around it. This airplane needs a clear, not painted, canopy. I checked with all the usual suspects, nobody makes one small enough to fit. I’m going to have to make my own. I’ve been hearing about people making canopies by heat shrinking plastic bottles on a plug, but haven’t tried it. Well, let’s try now.
First, I need a plug. I traced the side and top views of the canopy on a piece cut from a scrap 2x4, and cut the profile on the band saw. Then carved and sanded it to shape. I had to epoxy the plug onto a piece of scrap wood to hold it during this process.
I decided to use one of the really thin plastic water bottles rather than a soda bottle, due to the size of the part. I stapled the plastic to the base, and hit it with the heat gun. The plastic shrinks dramatically at first, but then stops. No amount of additional heat will induce it to shrink further. So the key is to hold the plastic as tightly to the form as possible before shrinking. The staples were good for this. It took me 4 tries to get a useable canopy, but it was a good learning experience, and the raw material is free.
I normally paint the canopy framing before gluing it to a model, but this is too small to handle. So, I went ahead and glued it on. The fuselage will give me something to hang onto while masking & painting.
Eric, I used Zap epoxy finishing resin on the cowling.
There’s just no way around it. This airplane needs a clear, not painted, canopy. I checked with all the usual suspects, nobody makes one small enough to fit. I’m going to have to make my own. I’ve been hearing about people making canopies by heat shrinking plastic bottles on a plug, but haven’t tried it. Well, let’s try now.
First, I need a plug. I traced the side and top views of the canopy on a piece cut from a scrap 2x4, and cut the profile on the band saw. Then carved and sanded it to shape. I had to epoxy the plug onto a piece of scrap wood to hold it during this process.
I decided to use one of the really thin plastic water bottles rather than a soda bottle, due to the size of the part. I stapled the plastic to the base, and hit it with the heat gun. The plastic shrinks dramatically at first, but then stops. No amount of additional heat will induce it to shrink further. So the key is to hold the plastic as tightly to the form as possible before shrinking. The staples were good for this. It took me 4 tries to get a useable canopy, but it was a good learning experience, and the raw material is free.
I normally paint the canopy framing before gluing it to a model, but this is too small to handle. So, I went ahead and glued it on. The fuselage will give me something to hang onto while masking & painting.
duaneh- Gold Member
- Posts : 223
Join date : 2019-04-06
Re: It’s the Pitts….
Wow!...that came out nice.
OhBee- Platinum Member
- Posts : 698
Join date : 2016-03-23
Age : 73
Location : Minnesota
Re: It’s the Pitts….
Impeccable worksmanship! I love Pitts Specials and yours is looking fantastic!
Tee Bee- Platinum Member
- Posts : 763
Join date : 2011-08-25
Location : Angleton, TX
Re: It’s the Pitts….
Inspirational! Definitely for me.. Re-creating in miniature has always appealed to me. I enjoy seeing this level of craftsmanship applied in the way that you have in this Pitts model. Biplanes occupy a special place in my heart..
Are you familiar with pilot Sean Tucker? Here's a real fpv video in a Pitts S2C formation-flying with others. (CAUTION could cause motion-sickness if one fixates on the horizon..)
(spoiler) fast-forward to 6:00:00
Are you familiar with pilot Sean Tucker? Here's a real fpv video in a Pitts S2C formation-flying with others. (CAUTION could cause motion-sickness if one fixates on the horizon..)
(spoiler) fast-forward to 6:00:00
Re: It’s the Pitts….
Roddie; Thanks for posting that video, very cool. Yes, I am familiar with Sean Tucker. I'm about 5 hours from OshKosh, WI., and the EAA convention has been an annual trip for 40+ years. Tucker was one of the first to move away from traditional aerobatics, to a style that incorporates elements of '3D' flying that we see in RC.
duaneh- Gold Member
- Posts : 223
Join date : 2019-04-06
Finished!!
I got the leadout guide made, and the last of the trim applied. I went ahead and made the N# by cutting the individual letters out of monokote. It's not perfect, but looks OK, considering the letters are only 3/8" high.
I'm going to call this project done.
It's a super nice day today, so I got some pictures outside. The natural light does wonders for making better pictures.
I wanted to use a Pennzoil can in this picture for scale, but didn't have one. So you get my coffee cup again.
Thanks to all for the help and encouragement, especially Eric and Roddie, you made it a better airplane.
Oh, almost forgot, the finished weight came out to 3.0 oz.
I'm going to call this project done.
It's a super nice day today, so I got some pictures outside. The natural light does wonders for making better pictures.
I wanted to use a Pennzoil can in this picture for scale, but didn't have one. So you get my coffee cup again.
Thanks to all for the help and encouragement, especially Eric and Roddie, you made it a better airplane.
Oh, almost forgot, the finished weight came out to 3.0 oz.
duaneh- Gold Member
- Posts : 223
Join date : 2019-04-06
Re: It’s the Pitts….
I'll drink to that, what great detail!! Wonderful work! BTW extra cream, no sugar!!! Mark
Mark Diedrichs- Gold Member
- Posts : 434
Join date : 2017-11-11
Age : 72
Location : fairfield ohio
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