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Hot Topic (More than 10 Replies) Cassutt's 111M - Voo Doo (Read 459 times)
Brad
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Re: Cassutt's 111M - Voo Doo
Reply #17 - Nov 21st, 2020 at 4:29pm
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Thanks Bob.

A little bit of progress on the upper fuselage.  I'm really seeing now that I can and will cut out some 'construction' cross members I added.  Maybe I should think of putting in an electric motor and RC?  It certainly is beefy enough  Smiley

Next up is figuring out the fuselage chin and front.  Cheek cowls will be done almost last to fit.

Brad
  

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bigrip74
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Re: Cassutt's 111M - Voo Doo
Reply #16 - Nov 13th, 2020 at 12:45am
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Again such clean construction Brad. I am loving it. Cant wait to see what is next.

Bob
  

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Brad
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Re: Cassutt's 111M - Voo Doo
Reply #15 - Nov 11th, 2020 at 4:43pm
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I figured how to make my wing mounts and side furring- finally.  It had me stumped for awhile.  Now adding side fuselage formers.
  

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Re: Cassutt's 111M - Voo Doo
Reply #14 - Nov 6th, 2020 at 7:59am
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Brad - You should be pleased, looks great, nice and straight. This is one area that takes me the longest to do. Nicely done.
Mike
  

"Skill comes by the constant repetition of familiar feats rather than by a few overbold attempts for which the performer is yet poorly prepared." Wilbur Wright
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Sky9pilot
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Re: Cassutt's 111M - Voo Doo
Reply #13 - Nov 5th, 2020 at 7:25pm
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Great job Brad...looking terrific!
  

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And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Brad
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Re: Cassutt's 111M - Voo Doo
Reply #12 - Nov 5th, 2020 at 11:41am
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Fuselage base framework done.  This is about as straight as I've made a fuselage 'box', so I'm very pleased.  It's a 'big boy'.

I'm contemplating using some foam for cheek cowls, wheel pants, etc.  But I really love the all balsa/tissue look.  Time will tell what I end up doing.
  

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Sky9pilot
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Re: Cassutt's 111M - Voo Doo
Reply #11 - Oct 26th, 2020 at 7:44pm
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I encourage you to weigh each wing panel to make sure they are the same weight.  Especially if hollowing out the tips to make sure one isn't heavier than the other.

Make your own wheels using balsa discs glued together cross grain.  Especially if the wheel/tire is encased in a wheel pants/spats.
  

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Brad
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Re: Cassutt's 111M - Voo Doo
Reply #10 - Oct 26th, 2020 at 11:54am
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Wings and tail feathers in pretty good shape.  I found some very light balsa stock for the wing tips.  Once I shape them I'll see if 'hollowing them out' makes any sense or not.

I'm about to start the fuselage.  I made a run to my local hobby store yesterday for some wood and wheels.  The plans measure to a 2 inch wheel, but it's really hard to find a thin, light 2 inch wheel.  I have a 2.5 inch candidate which is thin, and I have a 2 inch version which is thick.  I'm thinking I will try to cut the thick wheel in half first.

Brad
  

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bigrip74
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Re: Cassutt's 111M - Voo Doo
Reply #9 - Oct 23rd, 2020 at 2:21am
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Brad I am loving your build. And there are so many color schemes to choose from as you have stated.

Back in the late 60s (1969) and early 70's (1970) a friend of mine who got me into control line also went for his private lic. After attaining his 500 hours logged, he started building a Cassutt IIIM and let me help  Grin. He gained 200 more hours then went to RENO and sold it after one race. He stated that air turbulence turn him upside down around a pylon and it scared him so much he was done with racing Wink
  

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Re: Cassutt's 111M - Voo Doo
Reply #8 - Oct 22nd, 2020 at 7:38am
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Brad - This is a great choice for a model and the air racers provide a lot of choices of subjects to model and all is going great. The sliced rib construction is my favorite method and used it in my Culver Dart and will be used again in my Spirit of St. Louis. Using the v angles will help with some rigidity to the wing as it emulates the truss pattern, should work fine. Watching for more progress.
Miike
  

"Skill comes by the constant repetition of familiar feats rather than by a few overbold attempts for which the performer is yet poorly prepared." Wilbur Wright
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Brad
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Re: Cassutt's 111M - Voo Doo
Reply #7 - Oct 21st, 2020 at 7:10pm
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Wings are now framed up. 

I added the additional top ribs and vertical web between the lower and upper frame.  It really helped to firm the wings up  Smiley

I'm not sure to dive into the fuselage or tail feathers next.

We had a beautiful sunset tonight in Oregon.

Brad
  

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Re: Cassutt's 111M - Voo Doo
Reply #6 - Oct 21st, 2020 at 12:11am
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I agree.  It looks great!
  
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Re: Cassutt's 111M - Voo Doo
Reply #5 - Oct 20th, 2020 at 8:55pm
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I think you're going to like your wing construction.  This will build a nice light and strong wing.  Making great progress! Smiley
  

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Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Brad
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Re: Cassutt's 111M - Voo Doo
Reply #4 - Oct 20th, 2020 at 7:11pm
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Thank you Sky for the ideas.

I'm moving along quickly.  I realized I need to make both wings at the same time since I'm improvising and I really need to make both halves at the same time to make them close to the same.

My plan is to add another top spliced rib in between what the photos show. 

I kept the V rib layout just because it looks different and will look nice through the tissue  Smiley

Brad
  

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Re: Cassutt's 111M - Voo Doo
Reply #3 - Oct 19th, 2020 at 10:57pm
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With an enlargement to 26" w/s, it might be a good idea to opt for 90 degree ribs from the t/e to l/e with a main spar about 1/3 way back from the l/e for additional strength; in another words, the ribs covering the full chord of the wing.  All ribs & t/e can be made from light weight 1/16" balsa with 1/8" for the spar, l/e.  Insofar as adding riblets or false ribs between the spar & the l/e of the wing, it doesn't look as if it's really necessary at this stage and weight will be come more of a factor than adding strength.  I'm basing this on years of Guillow's 400 series kits in which their single-engine models generally span from 24" to about 28."  None of them featured riblets in their kits.  On my S.E.5, I added riblets or false ribs solely for appearance as the model was built for display. 

The number of ribs per wing?  Hmmmm that's a good guess.  Sky9 might have some suggestions here.  I'm guessing (again) perhaps factoring the width of the fuselage in between the two wings, to be around 2," therefore each wing panel should be approximately 12+" in span from the root to tip.  This should equate to about 10-12 ribs per panel.  I might be overstating this.  Hope it helps.

Gary
  
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