"1/2 A" & "1/8 A" airplanes These are the small ones...more popular now than ever.

1/2 A Gee Bee (any model) To Transform

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Old 03-18-2014, 05:58 PM
  #1
Steve Westphal
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Default 1/2 A Gee Bee (any model) To Transform

I want to build a Gee Bee (R3 or similar) for 1/2 A. I have a couple of outrageous 049's I would like to power it with. Are there any plans available for one of the Gee Bees that would work? I am guessing something in the 22 inch wing span arena. I have shrunk down a couple of larger plans to the 21 to 24 inch wingspan but they just don't look right. Maybe my eyes are messin' with me. Any suggestions? I guess I could try again unless anyone has any suggestions. Should I try shrinking a couple of other Gee Bee types? Like I said......maybe my eyes are playing tricks on me but when I scale one down they look slimmer and don't possess that "chubby" look that I like so well. Love to hear from someone on this.
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Old 03-19-2014, 02:24 PM
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Go to http://www.outerzone.co.uk and search on Gee. There are multiple plans available --- one may be suitable for you.
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Old 03-19-2014, 03:17 PM
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I do not recall ever seeing a GeeBee done in 1/2A by anyone at RCU or anywhere else.
I would "cheat" the scale proportions where ever I felt it was necessary and it would still end up looking like a GeeBee. At least enough to make me happy.
Figure that a .074 turning a 7 x 3 prop could handle a 5 inch diameter cowl and a .049 - .061 turning a 6 x 3 prop could handle a 4 inch diameter cowl. I would not want less than 22 - 24 inches of wing span...so those would be my main parameters.
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Old 03-19-2014, 04:04 PM
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Here is the R3, what a bad-ass looking airplane..

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Old 03-19-2014, 05:12 PM
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Shame it's not real.
A profile is the way to go for a R1 or R2 to avoid the large Prop / Fat fuselage problem.
I drew a .15 size C/L a few years ago.. never got around to make one though. Probably still have the file around.
A "D" model might be a feasible option

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Old 03-19-2014, 05:31 PM
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http://www.alienaircraft.com/k301.htm This thing is on my list, I think it would be a perfect flyer with a Norvel, And look who designed it, The man himself Thomas Herr!!
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Old 03-19-2014, 06:44 PM
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That looks like a nice home for an NV .074.
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Old 03-19-2014, 07:00 PM
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Quote:
Originally Posted by MJD View Post
That looks like a nice home for an NV .074.
Yessss...imagine that the prop in that photo is a 7x3. Looks pretty doable to me.
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Old 03-19-2014, 11:53 PM
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Manzanolaser has a 28" GeeBee-Z that looks nice
The Norvel .074 and a 7x3 prop could work well, or why not an MP jet .061 diesel...


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Old 03-20-2014, 01:16 AM
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The trick to designing one of these is to first find a 1/2 gallon Coke bottle..then go from there.
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Old 03-20-2014, 05:51 AM
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Quote:
Originally Posted by Mr Cox View Post
Manzanolaser has a 28" GeeBee-Z that looks nice
The Norvel .074 and a 7x3 prop could work well, or why not an MP jet .061 diesel...
Good manufacturer to know about! Thanks.
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Old 03-21-2014, 09:58 AM
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See post #27 of this thread:
1/2A engines and gearboxes
You may need something like that!
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