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New Flight: Pitts -Skelton Aerobatic model  (page 9) Babe_b10
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New Flight: Pitts -Skelton Aerobatic model  (page 9) Empty

New Flight: Pitts -Skelton Aerobatic model (page 9)

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Happy New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  MauricioB on Thu Apr 23, 2020 2:31 pm

Friends, I start this thread, sharing here this project that I had in mind a long time ago.
I will build in the possible time, so a good period can be extended.
This is the drawing of the U / C Pitts -Skelton Aerobatic model, I will make my own modifications in the structure to convert it to R / C and I will also modify it according to what I consider convenient for the assembly of the parts.
Also, I will make spoilers (aileron) that will surely be included in both wings.
With this introduction, I hope you have fun like I do. Thanks and take good care of yourself!
Reference
(oz6495)
Pitts S-1
by Aubrey Kochman
from Air Trails (ref:950)
September 1950
New Flight: Pitts -Skelton Aerobatic model  (page 9) 20200420
New Flight: Pitts -Skelton Aerobatic model  (page 9) 20200421
New Flight: Pitts -Skelton Aerobatic model  (page 9) 20200422
New Flight: Pitts -Skelton Aerobatic model  (page 9) 20200425
New Flight: Pitts -Skelton Aerobatic model  (page 9) 20200423
New Flight: Pitts -Skelton Aerobatic model  (page 9) 20200424


Last edited by MauricioB on Mon Jul 27, 2020 7:15 pm; edited 3 times in total
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  Dave P. on Thu Apr 23, 2020 3:30 pm

Little Stinker is one of my all-time favorite airplanes. I think the original is in the Smithsonian now, inverted, as Betty would have wanted it.

This should be fun Mauricio! Popcorn
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  MauricioB on Thu Apr 23, 2020 3:42 pm

Thank you for your kind words Dave, I hope it is a beautiful project! ..
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  Dave P. on Thu Apr 23, 2020 7:36 pm

MauricioB wrote: I hope it is a beautiful project! ..
Of that, I have no doubt.
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Happy nice pitts model y like

Post  davidll1984 on Thu Apr 23, 2020 7:58 pm

can y sugest rc gear for it if u use spektrum controler dsmx dsm2 use spektrum AR6335 reciver very light input voltage range 3.5 to 8.5 it can use 3.7v 1c lipo to 7.4v smal lipo receiver weight 2g 6ch it can use standar 1/10 scale to very smal 1.3 gram linear servo it use special conection some adap plug is need is programmable from mobile devices or pc no carbon fiber for it is use on 180 to 400 sized aircraft it say 300 but 400 is ok just dont buried in wood box it be fine
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  MauricioB on Thu Apr 23, 2020 11:54 pm

Thank you for your contribution, I will keep it in mind. It happens that in my country not many items are available, so within what I can get I will take advantage of what is indicated, thanks again!
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  MauricioB on Fri Apr 24, 2020 12:02 am

Well, I have embedded some pieces to see how it looks.
What I show there will be the core of force that will support the engine and the upper wing. I am very satisfied with the arrangement of the pieces.
You can also see the fuel tank presented, everything is comfortably healthy.
New Flight: Pitts -Skelton Aerobatic model  (page 9) 20200426
New Flight: Pitts -Skelton Aerobatic model  (page 9) 20200427
New Flight: Pitts -Skelton Aerobatic model  (page 9) 20200428

In this photo I present some lines where you can see how they would mount the supports of the upper wing, something like this ...
New Flight: Pitts -Skelton Aerobatic model  (page 9) Soport10

Well I just start dreaming about Pitts and I have put in templates to imagine it Very Happy
New Flight: Pitts -Skelton Aerobatic model  (page 9) 20200429
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  getback on Fri Apr 24, 2020 7:23 am

Looking Nice !! I am sure you will do a good job as always on the looks of the Pitts! Very Happy
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  duaneh on Fri Apr 24, 2020 7:57 am

What a great project! I can hardly wait to watch this airplane take shape.
What engine are you going to use?
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  MauricioB on Fri Apr 24, 2020 10:35 am

getback wrote:Looking Nice !! I am sure you will do a good job as always on the looks of the Pitts! Very Happy

Hi Erick !, it is good to hear from you friend! .... thanks. I hope everything turns out well, hug for you!
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  MauricioB on Fri Apr 24, 2020 10:38 am

duaneh wrote:What a great project! I can hardly wait to watch this airplane take shape.
What engine are you going to use?

Thank you! ... I have several models powered by Cox engines, including a Biplane, the Bi-Hawk with Cox .049 RC, so I gave a Norvel .061 RC a turn.
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  MauricioB on Fri Apr 24, 2020 8:12 pm

some progress...
Smile
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03610
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03611
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  MauricioB on Fri Apr 24, 2020 8:51 pm

ohh yes ... it looks like a Pitts Very Happy
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03612
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  getback on Sat Apr 25, 2020 6:06 am

I see in one drawing it calls for a O&R .29 engine is this the size your going for ? Don't see the length and W/S on the drawing . It is looking like a Pitts cheers
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  MauricioB on Sat Apr 25, 2020 2:11 pm

Erick, if you see it as a PITTS, then I keep calm hahaha ... it means I'm doing well! haha

Comparison between PITTS and BI-HAWK

PITTS
Wingspan: 29.8 inches (top wing)
Wingspan: 21.02 inches (bottom wing)
Fuselage length: 19.88 inches (including rudder)
Engine: Norvel .061 r / c
Radio: 4 channels (engine, spoilers, rudder, depth)
Weight: ? (in construction)

BI-HAWK
Wingspan: 30.11 inches (top wing)
Wingspan: 25.98 inches (bottom wing)
Fuselage length: 21.65 inches (including rudder)
Engine: Cox Medallion .049 r / c
Radio: 4 channels (engine, spoilers (lower wing only), rudder, depth)
Weight: 554 grs = 19.54 oz

There place the BI-HAWK on the PITTS plane so you can see it graphically
New Flight: Pitts -Skelton Aerobatic model  (page 9) 20200430
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  Tee Bee on Sat Apr 25, 2020 3:02 pm

That is a fantastic project, Mauricio!
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  MauricioB on Sat Apr 25, 2020 7:27 pm

Thanks friend Thumbs Up
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  MauricioB on Sat Apr 25, 2020 7:44 pm

Well, as you will see in the next photo, the author recommends a good idea to hold the top wing upright, in this case it is about two independent uprights for the front part of the wing, while the wing is definitely attached so as not to be turned by half of the lateral uprights that connect the upper wing with the lower wing.
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03710

calculating degrees of inclination of supports:
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03613

I have decided to change the fastening system of the upper wing, including placing (4) four independent uprights, to also hold the wing in the central part from the trailing edge.
I have taken some nimples of bicycle wheel spokes and have reduced them in diameter. These are embedded in the wood, allowing me once fixed with glue, to be able to control the incidence of the wing as desired, (in case it is necessary to make a desired adjustment after the first flights).
You can see the work done there.
A: It is the original nipple.
B: it is the nimple turned (modified) and embedded in the wooden support of the structure.
C: they are holes made in the wood, after having calculated the place of accommodation for the nipples, which eases the structure.
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03614
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03615
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03617
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03616
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03618
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03619
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03620
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03621

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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  1/2A Nut on Sat Apr 25, 2020 7:44 pm

Lovely project Mauricio!

Fuel tank size looks good what is the capacity?

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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  MauricioB on Sat Apr 25, 2020 8:41 pm

Thanks Brad !! .... my friend, I'm glad to hear from you. I hope that you and your family are well!
The tank has a capacity of 35/36 cm3 = 1.21 oz.
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03711

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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  1/2A Nut on Sun Apr 26, 2020 12:09 am

Yes thank you Mauricio and yours, great find on bottle size!

So far all is well, my local area is in a surge we won't hit our peak till
mid March. I have been working from home, looking forward to flying!

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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  MauricioB on Thu Apr 30, 2020 6:17 am

friends, as always, I wish everyone is well! ...
Some progress here ...
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03622
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03623
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03712
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03713
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03714
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03715
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03716
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03717
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03718
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03719
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03721
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03720
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03723
New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03722
more progress coming soon ... Smile Thumbs Up
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  akjgardner on Thu Apr 30, 2020 6:50 am

You Do outstanding work.... I like the lightening holes in the cockpit
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  getback on Thu Apr 30, 2020 7:33 am

That is as slick as a Baby's butt Did you add the strip down the fuse side  or is it in the plans ?
 New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03710
As always it Looks Great my friend BIG Hugs at a distance Very Happy  stay safe !!
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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

Post  MauricioB on Thu Apr 30, 2020 12:14 pm

akjgardner wrote:You Do outstanding work.... I like the lightening holes in the cockpit

thank you so much for your words.
There is also the possibility of making the cabin closed.
Two options, with windscreen or closed cabin.
I'm thinking if I make a PET and present it to see how it fits.

New Flight: Pitts -Skelton Aerobatic model  (page 9) Dsc03724

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Happy Re: New Flight: Pitts -Skelton Aerobatic model (page 9)

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