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Old Aug 28, 2015, 07:59 PM
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Riddle me this...
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Quote:
Originally Posted by FlyingGorilla83 View Post
Xplorers come with control rods, The Maxa does too... this is why they have threaded ends...
FWIW...I never use what is supplied with the models anyway (the one exception sometimes being threaded fuse pushrod couplers). They usually provide incorrect linkage lengths to boot.

Cutting some carbon rod to the precise length needed and attaching clevises is not hard. This is WRT conventional linkages...if we're talking LDS or something exotic, then the mfr should of course provide something.

Tom
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Old Aug 28, 2015, 08:14 PM
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Quote:
Originally Posted by FlyingGorilla83 View Post
Xplorers come with control rods, The Maxa does too... this is why they have threaded ends...
I've built Supras and Xplorers. Never used the supplied rods or supplied wiring for the Supras. Most of the time I succeed in getting the servo installed with a horn that stays below the surface of the wing so I can replace any bubble covers with flat covers.

The wiring on the Perfection is pretty nice. I actually used it.
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Old Sep 02, 2015, 04:44 AM
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Is there a video showing how the lds system works? The pushrod connection on the control surface looks like it has almost no moment arm which would require a powerful servo and and a really strong hinge line.
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Old Oct 22, 2015, 03:43 AM
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Glider Gear | Perfection CNC Horns

FYI
Greg Potter in Adelaide Sth. Australia is making replacement cnc horns.

http://www.glidergear.com.au/
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Old Feb 21, 2016, 11:56 PM
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I'm flying the V tail version.
Has anyone had the V tails fail with creases.
2 models both V tails both creased.
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Old Feb 22, 2016, 01:15 AM
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Quote:
Originally Posted by F3B Fly Faster View Post
I'm flying the V tail version.
Has anyone had the V tails fail with creases.
2 models both V tails both creased.
I fly a V-tail Perfection. No problems yet. Got photos?
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Old Feb 22, 2016, 03:18 AM
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Bottom of one tail side just where some internal spar ends. I don't know if it was flight or transportation damage that started it.

Repaired with a layer of carboweave.
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Old Feb 22, 2016, 05:33 AM
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Quote:
Originally Posted by F3B Fly Faster View Post
I'm flying the V tail version.
Has anyone had the V tails fail with creases.
2 models both V tails both creased.
Very likely the builder did a spar from carbon tow running directly from one half to the other. When the epoxy cures in a temper box the carbonfibre shrinks a bit and that shows in the corner where it come loose from the skin and might show a small crease. There are 2 ways to overcome this problem. Or let the epoxy cure at room temp. and do the tempering after. Or make the spar from 2 separate tows that just overlap in the middle.
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Old Feb 22, 2016, 01:37 PM
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Both sets that have failed have been the left hand side tail 1/2 inch past the joiner box.
The first model is brand new with only 6 flights when the crease appeared. the 2nd model probably had about 20 flights.

AK79 If I took photos they wouldn't do justice to see the problem as I have cut 2 hatches in the bottoms and placed carbon tows inside. A messy job as I want to keep flying.

Alex the spa in the tails are what looks like foam wrapped in a carbon twine like a spider web. there is very little strength there.
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Old Feb 22, 2016, 04:41 PM
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Quote:
Originally Posted by F3B Fly Faster View Post
Both sets that have failed have been the left hand side tail 1/2 inch past the joiner box.
The first model is brand new with only 6 flights when the crease appeared. the 2nd model probably had about 20 flights.

AK79 If I took photos they wouldn't do justice to see the problem as I have cut 2 hatches in the bottoms and placed carbon tows inside. A messy job as I want to keep flying.

Alex the spa in the tails are what looks like foam wrapped in a carbon twine like a spider web. there is very little strength there.

Hmmm, I'm going to have a close look at mine when I get home and report back. Maybe there is something there and I just never noticed it.
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Old Feb 22, 2016, 08:17 PM
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Hmm, sounds like the same side of the tail.

I just used some CA, then a piece of IM spread tow and a layer of Carboweave pressed on with a patch of mylar and some foam. Not a pretty fix but it's on the bottom. It looked like a buckling failure on the skin maybe starting at the end of the joiner tube where the foam/carbon braid web starts. It probably could have used an extra layer of the skin carbon through that area to stiffen the skin a little.
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Old Feb 23, 2016, 12:00 PM
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Checked my v-tails. Both sides are fine. Model is maybe a year old. Also, I never remove them.
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Old Feb 25, 2016, 07:44 PM
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I'm curious. Are they the Ls lay up only. Others. Sl or c68
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Old Feb 29, 2016, 02:57 AM
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My V-Tails on the ST 76 Both deliminated after two landings fixed with thin CA got New Tails from Flightcomp (as l didn't trust the creased one's) & have had no problems since the model is 18 months old.
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Old Mar 13, 2016, 03:56 PM
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Can somebody with experience using the Perfection LDS (Samba) post their impressions please?


Stefano
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