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Building Tips and technical articles. => 1/2 A building. => Topic started by: Chris McMillin on January 30, 2008, 02:06:17 AM

Title: The Redhawk!
Post by: Chris McMillin on January 30, 2008, 02:06:17 AM

I built this for my youngest, Michael, about five years ago.
It is all balsa and the AeroGloss just warped the heck out of it, so it sits on a shelf in his room. Larry Renger GAVE him the engine for it, suppose I should whip out another one. Possibly of bass.

If it was to fly it'd need the bellcrank moved up above the bottom wing!

The wings and tail are my typical 1/2 A set, ripped off from Harry Latshaw's famous 1/2 A Hustler Proto Speed (NOT profile) ship.

Chris...

Title: Re: The Redhawk!
Post by: Robert McHam on January 30, 2008, 04:17:33 PM

Very nice! Shame about the warpage.

Robert

Title: Re: The Redhawk!
Post by: George on January 30, 2008, 07:35:18 PM

Quote from: Chris McMillin on January 30, 2008, 02:06:17 AM

...It is all balsa and the AeroGloss just warped the heck out of it...
Chris...

Two things that will lessen the chances of a warp: 1.Use nitrate or non-tautening butyrate for the first few coats of dope. 2.Make sure the balsa is "C" grain.

I absentmindedly made a sheet wing of "A" or "AB" grain onetime.  :'(  n1

George

Title: Re: The Redhawk!
Post by: Larry Renger on February 01, 2008, 10:30:38 PM

These days, dope on some 1/2 ounce glass, carbon veil or even silkspan to reduce the warping.  It is easier to finish then, too.  Epoxy would be better, but dope will do for this.

Title: Re: The Redhawk!
Post by: Dennis Adamisin on February 01, 2008, 11:00:41 PM

A Bipe - with elliptical wings, with high aspect ratio, and guided by a V-Tail???

Man, that Redhawk pushes  ALL my buttons!  #^

Title: Re: The Redhawk!
Post by: Chris McMillin on February 02, 2008, 01:39:42 AM

Thanks guys,
I'll have to make another one and use all of your fine sugggestions.
Chris...