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Author Topic: 1960s Coupe d'Hiver Postal  (Read 158442 times)
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lincoln
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« Reply #150 on: July 12, 2014, 02:36:55 PM »

What does one do if, as with the NEWG Moth, the airfoil is given as similar to (insert unfindable airfoil name here)? In the case of the Newg Moth, as mentioned before, G103. In this case, as it happens, if one assumes a single digit typo, there are a number of suitable and plausible Goettingen airfoils. But they're not all that similar to each other. Ok to pick one?
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Mark Braunlich
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« Reply #151 on: July 12, 2014, 06:07:08 PM »

lincoln:

It's okay to pick an airfoil you can find data on.  

Lots of these little 3-views have missing details or there may be conflicting details on different drawings of the same model.   Just do what you would have done back in the '60s and improvise with the materials and technology of the day.   If there are two differing dimensions or details, pick one that works for you.
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lincoln
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« Reply #152 on: July 13, 2014, 03:02:38 AM »

Just ran across this when I should have been doing something else. Lots of CdH designs. Note that if you download the images, most are pretty sharp.
https://sites.google.com/site/planotecafaa/goma/f1g---p-30

Not sure where some were published, tho.
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dputt7
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« Reply #153 on: July 13, 2014, 03:25:43 AM »

Lincoln
Could you please stop trying to distract us from the task at hand   Shocked Grin just pick one and Start! Grin
regards Dave
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lincoln
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« Reply #154 on: July 13, 2014, 03:32:30 AM »

I've got a lot of other stuff I ought to do first. And at least a tenth as much time as I need to do it, since I live in the Northern Hemisphere. I thought I was the one who was distracted!
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« Reply #155 on: July 13, 2014, 03:39:11 AM »

 Grin
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Mark Braunlich
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« Reply #156 on: July 13, 2014, 09:02:37 AM »

Nice find lincoln!

The French model Loque Bis was definitely published in the 1960s and has appeared here as a small three-view.  So now we have a source for a real plan of it.  Looks quite simple too.  Smiley    
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« Reply #157 on: July 15, 2014, 08:05:30 PM »

My thanks to Bingo for bringing this Cd'H to my attention.  The Moustique by Don Lindley from the November, 1964 Model Airplane News is about as wild as they come.  I can supply a much higher resolution plan via e-mail.  PM me if you're interested.
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« Reply #158 on: July 16, 2014, 05:32:06 PM »

This is Bill Vanderbeek's "My Coupe" from the 1960's.Was in his club news letter in Dec.1969.My friend and I will be building a couple of them.Shouldn't take to long,I love that it has a two bladed prop.
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billdennis747
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« Reply #159 on: July 16, 2014, 05:37:30 PM »

Not sure about the rear fuse structure - rather long unsupported gaps! The rest looks very promising.
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FF Bruce
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« Reply #160 on: July 16, 2014, 08:50:28 PM »

On the plans they are at a 30 deg. angle.I drew the plans for Bill when I was in the 10th grade.I think you can still get them from NFFS.
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« Reply #161 on: July 17, 2014, 01:57:10 PM »

Re. "My Coupe":  Could it be that the fuselage is sheeted all the way back to the end (top, maybe bottom)?
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« Reply #162 on: July 17, 2014, 08:26:34 PM »

Pit, no the fusealge is built up from a couple inches behind the pylon all the way to the rudder.I have the plans and as I said before I even drew them way back in 1969, I was 16 then.It was one of the NFFS's models of the year in 1970.The 3 view was for his club news letter so it didn't have much detail.
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Bingo Fuel
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« Reply #163 on: July 17, 2014, 09:41:27 PM »

Re "My Coupe"
  I would say it would be sheet full length top and bottom.  With the wide spacing of the diagonals I should think it might be a bit mushy. Not my cup of tea.  Bingo
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« Reply #164 on: July 17, 2014, 10:30:54 PM »

Sorry Bingo but you are wrong.I have the plans 
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Pit
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« Reply #165 on: July 18, 2014, 08:24:43 AM »

I've been looking over the hi-res photo of the Moustique (thanks Mark!), and am fairly convinced that this is the one I'll attempt.  It's different enough to satisfy my penchant for the unusual and doesn't appear to be that difficult.  The only big question is, are the side longerons behind the "pylon" trussed like the spine or the areas sheeted?  I suppose that the longerons are supported by formers.

"My Coupe" also looks quite straightforward and would probably be a better choice for me as a raw beginner with "coupes" (but I like challenges).
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« Reply #166 on: July 18, 2014, 09:22:04 AM »

The only big question is, are the side longerons behind the "pylon" trussed like the spine or the areas sheeted?  I suppose that the longerons are supported by formers.

Pete,
I'm going to guess there are no trusses or formers(!) in the rear fuselage.
On page 43 of the article: "The paper is unsupported from aft of the wing platform to the stab mount."   He went to this extreme to keep the pitch/yaw moments of inertia low.
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« Reply #167 on: July 18, 2014, 11:05:22 AM »

Thanks again, Mark.  I'll add simple 1/16th x 3/32nd "X" pieces along the length to keep the longerons from bowing in from tissue shrinkage.

Pete
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« Reply #168 on: July 19, 2014, 11:24:25 AM »

I don't have a propeller yet...  but most of the Guy Cognet model is now built
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Tim
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« Reply #169 on: July 19, 2014, 05:06:31 PM »

 Grin Nice colour scheme! Looks like it will fly well!
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Mark Braunlich
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« Reply #170 on: July 19, 2014, 07:43:15 PM »

Great looking model Tim!
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lincoln
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« Reply #171 on: July 20, 2014, 12:48:33 AM »

That's an exceptionally attractive model. Is that computer printed tissue or are you just a wizard at cutting the stuff?

I'm guessing you worked that up from the little sketch in Aeromodeller Annual? What year?
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Graiskye
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« Reply #172 on: July 20, 2014, 01:22:55 AM »

That's an exceptionally attractive model. Is that computer printed tissue or are you just a wizard at cutting the stuff?

I'm guessing you worked that up from the little sketch in Aeromodeller Annual? What year?
Its cut tissue Lincoln, Im willing to bet. You see the sheet of blue sitting on the desk?
Thats how it is usually done on the competitive models as far as I understand, do not have the comp experience but I have cut tissue letters etc..
I am curious if the white is just bond paper or maybe some thin vinyl. I  think maybe its a combinatiopn of several techniques, but some of it is for sure cut tissue.
 It looks super awesome.
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dputt7
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« Reply #173 on: July 20, 2014, 01:54:28 AM »

It looks super awesome.
Sure does Tim, I like the Aussie/French flag theme.
I'm at about the same stage, just a few details to go and waiting for my Badge Lite timer to arrive for the D/T. I've put my scales away 'cause I don't want to know!.
Dave
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« Reply #174 on: July 20, 2014, 03:25:48 AM »

 Grin Very fancy looking prop and a large tailplane. should be very stable. interesting colours, should be easy to identify. 
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