stunthanger.com

Building Tips and technical articles. => Building techniques => Topic started by: Randy Powell on April 13, 2011, 05:41:11 PM

Title: Take apart mechanism
Post by: Randy Powell on April 13, 2011, 05:41:11 PM

So, where does one acquire a take apart mechanism like the one in the picture below?

Title: Re: Take apart mechanism
Post by: Tim Wescott on April 13, 2011, 05:56:32 PM

Man, that's pretty.  It looks a whole lot like something that was machined out of billet then sand blasted.  Are you sure it's not custom?

The only argument I have with it is that you're depending on the shear strength of the screws to hold your wings on -- and screws generally want to be loaded in tension, not shear.  But hey -- if it works, who am I to argue?

Title: Re: Take apart mechanism
Post by: jim gilmore on April 13, 2011, 06:25:02 PM

Actually the strength of fasteners is relative to both their material and size.
So you can use them for both shear and tension. But how much shear will depend on their size and material.
In 1987 I worked for a company that used case hardened hilocs to attach the nacelle to the wing joint on the naceels mai longeron......didn't understand that device with the dial on it when they worked out the plans....

Title: Re: Take apart mechanism
Post by: Wynn Robins on April 13, 2011, 06:50:43 PM

Dallas Hannah makes them - search for him here or on Stuka and send him an email.

Title: Re: Take apart mechanism
Post by: Randy Powell on April 13, 2011, 08:11:37 PM

Hmm, I might have to ask Dallas.

And Jose, i obviously completely misunderstood your PM response. Sorry about that.