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Speed,Combat,Scale,Racing => Combat => Topic started by: Motorman on November 12, 2014, 08:48:57 PM

Title: 1/2a Design
Post by: Motorman on November 12, 2014, 08:48:57 PM

What's the wing area and wing thickness on a modern 1/2a combat plane?

Thanks,
MM

Title: Re: 1/2a Design
Post by: john e. holliday on November 13, 2014, 09:10:37 AM

Check out the Core House designs. 

Title: Re: 1/2a Design
Post by: ChrisSarnowski on November 13, 2014, 12:14:09 PM

Well, according to the Yuvenko web site, their models have 940mm (37 inch) wingspan, and 270mm (10.6 inch) chord. But I think the chord number is suspect since the wing is very tapered.

http://yuvenko-f2d.com/index.php/airmodels/0-8cc-c-l-combat-1-2a.html

I'd suspect something like 250 sq inches wing area.

I can measure some models later tonight. I have a Viko 1/2a model, a GRS Barracuda 1/2a, and the Brodak Gladiator 1/2a at home.

I might also have info on the Sonic Chicken 1/2a at home, too. Buzz Wilson has done some write-ups for MACA news on the Sonic Chicken.

-Chris

Title: Re: 1/2a Design
Post by: Motorman on November 13, 2014, 01:24:59 PM

Thanks Chris, I need to build a plane for my P-Zero. So, about 250 sq with 36" span but how thick?

Title: Re: 1/2a Design
Post by: ChrisSarnowski on November 13, 2014, 09:52:14 PM

Here's what I got:
                              Brodak         Barracuda        Viko
Wingspan                    36                36                37
Chord at center            10 1/2          10              10 1/2
Chord at tip rib              5                5.75             4 3/4
Thickness at center        1              1 1/8             1 1/4
Thickness at tip rib         5/8             3/4               3/4

Area                            279              283.5          282.125

(Area = ((Center Chord + Tip Cord)/2) * Wingspan

Hope that helps!

-Chris

Title: Re: 1/2a Design
Post by: Motorman on November 16, 2014, 08:10:02 AM

That's interesting. With a light fuselage I could use a flying clown.

Title: Re: 1/2a Design
Post by: Paul Smith on November 18, 2014, 10:25:22 AM

No doubt about the Clown.  I have one with a TeeDee 049 and it goes fast.  And I mean the Clown racing size Clown.  It will really go with a modern Ukrainian 049.

Title: Re: 1/2a Design
Post by: ChrisSarnowski on November 20, 2014, 06:06:15 AM

You could also go with a Junior Flight Streak. It's wing is 230 sq inches, too. I think it is more "combatty".

-Chris

Title: Re: 1/2a Design
Post by: Paul Smith on November 20, 2014, 06:55:47 AM

All of the 15-size planes (Sig Acromaster, Jr Flite Streak, Jr Ringmaster, Jr Lightning Streak, Whipsaw) would work - and actually be a bit on the small side - with a modern 049.