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Author Topic: Airplane designs  (Read 2984 times)

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Airplane designs
« on: June 28, 2006, 07:13:34 AM »
Robert, over the past several years you have built allot of airplanes. Some your own designs, some others. This year your talking about taking a design aerodynamically by Randy Smith to the NATS. Randy's airplanes have a great success rate and I was wondering what attributes you have found in them that your own or other designers planes didn't have.
Keith Bryant

Offline RC Storick

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Re: Airplane designs
« Reply #1 on: June 28, 2006, 07:20:41 AM »
This plane was not designed by Randy. It has Randy style wing tips (GMA Flightstreek) GeoBolt wing.

Quote
I was wondering what attributes you have found in them that your own or other designers planes didn't have.
The PA .75
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Re: Airplane designs
« Reply #2 on: June 28, 2006, 08:52:05 AM »
Robert, I think you misunderstood my question, I understand Randy did not aesthetically design the plane, but you indicated the aerodynamics as being Smith-Werwage. Plus, that foam wing you used, you say that is the Geo-bolt wing. Did Randy provide you with the cut cores or are those of your own doing?
Keith Bryant

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Re: Airplane designs
« Reply #3 on: June 28, 2006, 04:38:54 PM »
Robert, I think you misunderstood my question, I understand Randy did not aesthetically design the plane, but you indicated the aerodynamics as being Smith-Werwage. Plus, that foam wing you used, you say that is the Geo-bolt wing. Did Randy provide you with the cut cores or are those of your own doing?

I said that as to not take all the credit for the wing. Randy did not supply it. I have foam cutting equipment. There is some diffrences in my foam wing. The LE is molded.
« Last Edit: June 28, 2006, 09:03:46 PM by Robert Storick »
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Offline Randy Powell

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Re: Airplane designs
« Reply #4 on: June 29, 2006, 10:05:58 AM »
Robert,

I was kind of surprised you went to the "Big Iron" engine after our discussions about plane weight and the need to keep the engine weight down. But hey, I certainly understand. I've been thinking about the same thing with my new plane. I'd rather have a PA .75 in the nose than a .40 with a bunch of nose weight.   ;D
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 Randy Powell

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Re: Airplane designs
« Reply #5 on: June 30, 2006, 12:02:25 PM »
Maybe somebody out there can answer my initial question. I have never built or flown a Randy designed plane or used any of his components. I have seen them fly with some of the finest flyers , but I was wondering about some of the characteristics that make them fly as well as they do. Randy has been developing his planes for some years now, and I was wondering about some of the advancements he has found that work with his designs.
Keith Bryant

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Re: Airplane designs
« Reply #6 on: June 30, 2006, 04:39:39 PM »
Robert,

I was kind of surprised you went to the "Big Iron" engine after our discussions about plane weight and the need to keep the engine weight down. But hey, I certainly understand. I've been thinking about the same thing with my new plane. I'd rather have a PA .75 in the nose than a .40 with a bunch of nose weight.   ;D

OK here's the thought. If I am going to fly big airplanes (the trend seems to dictate that) and I am using a .61 that has to fly on .018 lines anyway why not have all the power I can get with the same line diameter? ( I am also going to .014 solids) I can see a advantage if I can build the next one around 55-60 oz instead of the current 65 oz. However this plane flies well.
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Offline Bill Little

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Re: Airplane designs
« Reply #7 on: July 01, 2006, 11:35:18 AM »
Maybe somebody out there can answer my initial question. I have never built or flown a Randy designed plane or used any of his components. I have seen them fly with some of the finest flyers , but I was wondering about some of the characteristics that make them fly as well as they do. Randy has been developing his planes for some years now, and I was wondering about some of the advancements he has found that work with his designs.

Hi Keith,

I *think* you might have answered your own question in a way.  y1

Randy HAS spent a long time refining the designs of his planes.  His planes are designed to be easy to fly!  They seem to be very user friendly.  I have flown several of his designs, and my Geo Juno is very close to a "Randy plane".  They are stable and can corner.  They are a *little* less weight sritical than some designs.  They are "easy to pull".

I asked a very good NE flyer the same question you ask, and he gave me his ideas.  The plane of choice in his area "flies like a big Nobler".  It has a lot of lift and can be trimmed to fly about any way you want to, but it is what it is.  However his SV was more of a "sports car".  While good off the board, it can be further trimmed to be killer!  Not a knock of any kind, he said his "other" plane he can take down and fly with no practice, but his SV he can fly harder when he can practice and trim it.  The SV will out fly it if he can get time on it.

Now this is two highly competitive ships, of very different "styles".  Both fly the same when he's "cold", but the SV can do more when he has practice.  Make sense?

Like I said, myself, I have flown a bunch of different design styles.  All were good, but Randy's planes seem a touch more "user friendly".....  maybe it's all a personal preference as to how you like to fly and what you're used to.  No doubt the SV and Rite Flite designs from Randy (and their spin offs) have gained widespread success!

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