A Wing Question

[vicenterc at comcast.net]

Bob:
When I flew Malibus few years ago I used large O-rings.  Usually two, just in case one fails.  O-rings are very strong.  However the #64 rubber bands is a good option too.  
Vicente

-------------- Original message -------------- 

> I appreciate all the replies! You guys have a lot of info to share.... 
> What prompted my question was the relative difference, if any, between a 
> couple of #64 rubber bands, doubled, that hold the hooks in the root rib to 
> the fuse. I've tested THOSE eye-hook dowels, and they don't even begin 
> deforming the root rib at 35lbs. And the doubled #64's I think can't pull 
> that hard...so sounds like the "hook/rubber band" retainer, although not 
> high tech nor elegant, certainly is functional. 
> 
> Thanks guys! 
> 
> Bob Pastorello 
> rcaerobob at cox.net 
> www.rcaerobats.net 
> 
> 
> ----- Original Message ----- 
> From: 
> To: 
> Sent: Tuesday, July 06, 2004 7:17 PM 
> Subject: Re: A Wing Question 
> 
> 
> > 
> > > Bob 
> > The outward force of the snap roll which is probably the most outward 
> force along the tube must be less than the shear point of a 4-40 screw.A lot 
> of us use this to hold the wings on. 
> > 
> > Jim Ivey 
> > > From: "Bob Pastorello" 
> > > Date: 2004/07/06 Tue PM 06:55:40 EDT 
> > > To: "NSRCA" 
> > > Subject: A Wing Question 
> > > 
> > > Anyone out there actually calculated (or measured) how much OUTWARD 
> force is exerted on our wings during our typical stuff? I'm looking for the 
> force in line with the wing tube, spanwise, for the "retaining" load to keep 
> the wings ATTACHED..... 
> > > 
> > > Any knowledge? 
> > > 
> > > Bob Pastorello 
> > > rcaerobob at cox.net 
> > > www.rcaerobats.net 
> > > 
> > > 
> > > 
> > 
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> > 
> 
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