What 1/6th scale model is good for a Technopower 7cyl B engine?  
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All Forums >> RC Airplanes >> RC Scale Aircraft >> What 1/6th scale model is good for a Technopower 7cyl B engine?
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What 1/6th scale model is good for a Technopower 7cyl B... - 7/2/2003 5:15:55 PM   
BultacoBill


 

Posts: 27
Joined: 1/25/2003
From: Hartford, CT,
Status: offline 		I'm looking for recommendations for a plane to use a Technopower 7 cyl engine. Its the 1/6th scale size 6-5/8 Diameter 1.95 cu-in. I would prefer an open cowling appearance. A Stearman seems like a good choice, but I'm also interested in finding a single wing plane.

Thanks,
BultacoBill
       Post #: 1

DHC-2 Beaver - 7/3/2003 4:08:31 PM   
Closterman



Posts: 209
Joined: 10/9/2002
From: La Sarre, QC, CANADA
Status: offline 		I think your engine fit in my Beaver. Look my website [url]www.mraerodesign.com[/url]
I can send you a drawing of the cowl if you want !

_____________________________

Closterman

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What 1/6th scale model is good for a Technopower 7cyl B... - 7/3/2003 11:07:22 PM   
omcusnr


 

Posts: 116
Joined: 12/1/2002
From: Medford, OR,
Status: offline 		A Stearman,
Waco ymf
hellcat
wilcat
p-47 thunderbolt
Duck


buy 3 more & put em in a fort.

How's it go? "Real planes have round engines"

(in reply to BultacoBill)
       Post #: 3

Re: What 1/6th scale model is good for a Technopower 7c... - 7/5/2003 4:12:05 PM   
DanSavage



Posts: 578
Joined: 4/17/2002
From: Trabuco Canyon, CA, USA
Status: offline 		[QUOTE]Originally posted by BultacoBill
I'm looking for recommendations for a plane to use a Technopower 7 cyl engine. Its the 1/6th scale size 6-5/8 Diameter 1.95 cu-in. I would prefer an open cowling appearance. A Stearman seems like a good choice, but I'm also interested in finding a single wing plane.[/QUOTE]

You might consider building a Fairchild PT-23. It's the radial engined version of the PT-19 that used a Continental R-670, which is basically the same engine used in the Stearman.

It'd be pretty easy to convert something like the Dynaflite PT-19 kit to accept the radial and you'd end up with a great flying airplane. With a 78" wingspan, the Dynaflite PT-19 is a little over-scale for the engine, but it is made for engines that are about the same size as your radial.

Here's an example pic of a PT-23.

Dan


(in reply to BultacoBill)
       Post #: 4

What 1/6th scale model is good for a Technopower 7cyl B... - 7/6/2003 12:30:20 AM   
BultacoBill


 

Posts: 27
Joined: 1/25/2003
From: Hartford, CT,
Status: offline 		That PT-23 looks real nice. I like the idea of keeping the engine exposed. That's why i'm shying away from the cowled planes. The idea of converting a PT-19 to a PT-23 is interesting. There might even be an available ARF of the PT-19 to start from.

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What 1/6th scale model is good for a Technopower 7cyl B... - 7/6/2003 9:58:03 AM   
DanSavage



Posts: 578
Joined: 4/17/2002
From: Trabuco Canyon, CA, USA
Status: offline 		[QUOTE]Originally posted by BultacoBill
That PT-23 looks real nice. I like the idea of keeping the engine exposed. That's why i'm shying away from the cowled planes. The idea of converting a PT-19 to a PT-23 is interesting. There might even be an available ARF of the PT-19 to start from. [/QUOTE]

The Fairchild Cornell series of aircraft (PT-19/23/26) make for great flying models mainly because of their proportions.

I'm not too sure whether there's an ARF that'll be the right scale for your engine. The full-size wingspan is 36', so 1/6-scale would be 72". The closest to that scale that I was able to find was the Dynaflite PT-19 at 78". I've flown the Dynaflite PT-19 and it's a sweet flyer, but from what I understand, it's not a beginner's model.

The Hangar 9 PT-19 ARF and Great Planes PT-19 ARF's are closer to 1/5-scale at 82" each.

In any event, good luck with your project and I hope to see pics of it some time in the future.

Dan

(in reply to BultacoBill)
       Post #: 6

Dynaflite PT-19 at 78" - 7/17/2003 6:33:59 PM   
BultacoBill


 

Posts: 27
Joined: 1/25/2003
From: Hartford, CT,
Status: offline 		Dan,

I can only find the Dynaflite PT-19 at 89". Was your 78" a typo?

Thanks,
Bill

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       Post #: 7

PT-23 - 7/17/2003 9:30:51 PM   
Mike Denest



Posts: 725
Joined: 5/21/2002
From: Newark, DE, USA
Status: offline 		[QUOTE]Originally posted by BultacoBill
That PT-23 looks real nice. I like the idea of keeping the engine exposed. That's why i'm shying away from the cowled planes. The idea of converting a PT-19 to a PT-23 is interesting. There might even be an available ARF of the PT-19 to start from. [/QUOTE]


Watch eBay and RCU for either the Jetco/Sig PT-19 kit or the plans published in a 1956 issue of American Modeler. It has a 72" span which should be perfect for your engine.

_____________________________

Mike Denest
R/C as it used to be: http://www.vintagercsociety.org

(in reply to BultacoBill)
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PT-23 - 7/17/2003 10:57:40 PM   
BultacoBill


 

Posts: 27
Joined: 1/25/2003
From: Hartford, CT,
Status: offline 		Mike,

Thanks. I'll look for them.

Bill

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Re: Dynaflite PT-19 at 78" - 7/19/2003 5:09:28 AM   
DanSavage



Posts: 578
Joined: 4/17/2002
From: Trabuco Canyon, CA, USA
Status: offline 		Hi Bill,

[QUOTE]Originally posted by BultacoBill
I can only find the Dynaflite PT-19 at 89". Was your 78" a typo?[/QUOTE]

No, it wasn't a typo, but a reading error on my part. I did my initial search on Tower Hobbies' site ([URL=http://www2.towerhobbies.com/cgi-bin/WTI0095P?FVSEARCH=pt-19&FVPROFIL=++]PT-19 Search[/URL]) and mis-read the the headline (Dynaflite Giant PT-19 Kit 1.08-1.5,88.78" mistaking the 88.78" for 78".

Sorry for any confusion.

Dan

(in reply to BultacoBill)
       Post #: 10

Dynaflite PT-19 at 89 - 7/19/2003 5:44:50 AM   
BultacoBill


 

Posts: 27
Joined: 1/25/2003
From: Hartford, CT,
Status: offline 		Dan,

Thanks for clearing that up. I'll probably keep my eyes open for the Jetco/Sig PT-19 kit at 72". I see that one recently went here on RCU in the kits for sale forum.

Bill

(in reply to BultacoBill)
       Post #: 11

Re: Dynaflite PT-19 at 89 - 7/21/2003 11:34:45 PM   
DanSavage



Posts: 578
Joined: 4/17/2002
From: Trabuco Canyon, CA, USA
Status: offline 		[QUOTE]Originally posted by BultacoBill
Thanks for clearing that up. I'll probably keep my eyes open for the Jetco/Sig PT-19 kit at 72". I see that one recently went here on RCU in the kits for sale forum.[/QUOTE]

Bill,

Are you planning to fly this model for fun or fly it in scale contests?

If you're planning to fly in contests, then you might want to compare any plans/kits you get against a scale 3-view of the PT-19/23 to make sure that the outlines/cross-sections are accurate.

You might also be able to get a copy of the Jim Pepino 1/4-scale plans from High Flight, ([URL=http://www.fly-imaa.org/imaa/hfarticles/plans/v8-1-62c.html]Pepino PT-19[/URL]) have them reduced at your local Kinko's to the size you need. You might also contact Wendell Hostetler ([URL=http://www.aero-sports.com/whplans/fairchild.html]Hostetler PT-19[/URL]) to see if he's willing (or able) to sell you a reduced copy of his 1/4-scale plans.

If this were my engine, I'd scratch-build a model around the engine. But, I understand that not everyone is comfortable designing a model, so that's why I'm suggesting obtaining scale plans and reducing them from 1/4-scale down to the 1/6-scale you need.

Dan

(in reply to BultacoBill)
       Post #: 12

What 1/6th scale model is good for a Technopower 7cyl B... - 7/21/2003 11:48:13 PM   
BultacoBill


 

Posts: 27
Joined: 1/25/2003
From: Hartford, CT,
Status: offline 		Dan,

If it comes out good, i'll enter it in contests. I will be trying to go for scale detail, but i'm also looking for this one to be a flyer too. I probably would stop short of trying to get the cockpit all detailed out with foot pedals, etc. I like the idea of changing the scale of an existing plan, vs trying to design it entirely from scratch. I'll see if I can get one.

Thanks,
Bill

(in reply to BultacoBill)
       Post #: 13

What 1/6th scale model is good for a Technopower 7cyl B... - 8/4/2003 8:29:54 AM   
DanSavage



Posts: 578
Joined: 4/17/2002
From: Trabuco Canyon, CA, USA
Status: offline 		[QUOTE]Originally posted by BultacoBill
Dan,

If it comes out good, i'll enter it in contests. I will be trying to go for scale detail, but i'm also looking for this one to be a flyer too. I probably would stop short of trying to get the cockpit all detailed out with foot pedals, etc. I like the idea of changing the scale of an existing plan, vs trying to design it entirely from scratch. I'll see if I can get one.[/QUOTE]

I thought you'd like to see this.

Someone else is flyng a PT-23. Here's some pics at a link I saw on the Photos from Scalemasters thread.

http://www.pbase.com/rcairnw/evergreen2003&page=3

Don't know anything about the model, but I posted a query on the Scalemasters thread.

Dan

(in reply to BultacoBill)