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Building Tips and technical articles. => Building techniques => Topic started by: Allan Perret on July 13, 2011, 03:48:26 PM

Title: Horn wire size
Post by: Allan Perret on July 13, 2011, 03:48:26 PM

For 60 size stunters. 
Been in habit of using 1/8" wire horns for both flap and elevator. 
Been thinking that 3/32" would be OK for the elevator, and stay with 1/8" wire horn on the flaps. 
What say you ?

Title: Re: Horn wire size
Post by: FLOYD CARTER on July 13, 2011, 04:12:36 PM

When I braze up my own horns, 3/32" is OK for elevator if the span is not more than 1" each side of the horn. Of course, smaller models would get by with even less wire.  Span on flap horns is usually greater, so 1/8" is called for there.

I once made the mistake of using a CF rod for flap wire.  Not good.  Inside an aluminum tube, it did nothing but bind!  Had to tear it apart and install good old piano wire.

Floyd

Title: Re: Horn wire size
Post by: Randy Powell on July 13, 2011, 10:00:03 PM

Allan,

That's what I use.

Title: Re: Horn wire size
Post by: Will Hinton on July 15, 2011, 07:35:13 PM

I use 1/8 when I make my own, as Randy does, but I have been using drill rod instead of piano/music wire because it is bullet proof, but more easily tweaked.  No fellas, you can't tweak it accidentally, it's still too stiff for that.  But you stand a much better chance of not busting a flap.