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Upscale Estes Falcon Boost Glider

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n27sb

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Thinking about doing an upscale original Estes Falcon.

Any thoughts?
Screen Shot 2020-08-12 at 7.42.20 PM.png
 

Crawf56

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I like the idea. What is the design wingspan/motor, and what size were you wanting to move up to?
 

n27sb

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I think the original Falcon had a wingspan of about 10.5"
I would like to do something about 200 to 250%
Do you think that scaling this up would change how it flies?
Never took on anything like this.
Would an open camber/single surface type airfoil work.
 

Initiator001

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The May 1970 issue of Model Rocketry magazine features an article with plans for an 'upscale' Falcon called the Thunder-Bird. This model would fly on B and C motors.
 

n27sb

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The May 1970 issue of Model Rocketry magazine features an article with plans for an 'upscale' Falcon called the Thunder-Bird. This model would fly on B and C motors.
Does anyone have a copy of this out there?
 

n27sb

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Thank you burkefj for the link. I sent him a PM
 

Ez2cDave

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The MRM article for building the "Thunder Bord" was very interesting.

One thing that caught my attention was the wing airfoil and the use of what the Author called "buffer strips" . . .

I am puzzled by his references to "sound" & "noise" causing issues with the glider . . . I can only surmise that he was talking about harmonic vibration. To my mind, the real issue was Flutter and the Buffer Strips served to stiffen the Wing, without providing any "acoustic benefit" . . .

Thoughts ?

Dave F.

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neil_w

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This thread has jogged my memory, I think I might have built one of these things as a kid. Definitely never flew it, and can't recall if I was able to trim it properly. Wonder what other builds I've forgotten.
 

Aeronerd

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Thinking about doing an upscale original Estes Falcon.

Any thoughts?View attachment 427936
I would put a small amount of incidence into the stabilizer, maybe about one degree. I can't tell from looking at it or the Thunderbird whether there was some built in or not. But what I have learned is that rocket boosted gliders won't transition well or at all if there isn't some incidence in the either the wing or stabilizer.
 
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