[NSRCA-discussion] Control Horn Mounting

[rcmaster199 at aol.com]

Chris,

What's the latest on the Xigris deliveries?
thanks

MattK






-----Original Message-----
From: Chris <cjm767driver at hotmail.com>
To: General pattern discussion <nsrca-discussion at lists.nsrca.org>
Sent: Fri, Feb 12, 2010 1:02 pm
Subject: Re: [NSRCA-discussion] Control Horn Mounting


HI Tim,

We will have the CA Model horns (Hyde)  in a week or so.  I don't have the prices yet so they are not listed.  I am also working on getting some other aluminum horns like the ZN Lines ones.  The ZN ones are like $9 each as as you can imagine, I won't be importing those.  These other options are high on my list and I should have some details within 2 weeks.

Chris

Pascoe,Tim [Burlington] wrote: 

I’ve been talking about various control horn mounting techniques with a few people, and have a question for the list. In the past, I’ve always used the Balsa block/dowel hard point/screw/MK horn for control linkages. More recently, I’ve seen the technique for inserting a ply plate in/under the skin of the surface, and simply screwing in to this with a horn. I prefer this technique, but I’ve seen it only on electric build threads so far – strong enough for glow too?
 
Also – Hobby King sells some nice carbon fiber control horns for a very reasonable price. These horns, however, are of the variety that simply glue into a slot cut into a balsa block. In the Integral, as an example, this is used successfully, but a question has been raised as to whether this works because it is a hard fiberglass skin, or whether it would be just as strong in the case of a balsa/foam wing with a hard-point of balsa inserted at the mounting point. To take it a step further, would it be strong enough in a built-up framed surface, with a block mounted under the covering as the attachment?
 
Finally – is there a good source for aluminum horns? I really like the Hyde ones, but it seems they are not available any more? Is anyone carrying the CA Models horns (Checked F3A Unlimited, but didn’t see them).
 
Tim Pascoe 


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