Sonex Tail Fairings

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Sonex Tail Fairings

Postby rizzz » Sun Feb 22, 2015 7:34 pm

I’m not quite happy with the look of my tail fairings. Not sure what it is, they just don’t seem produce a very “smooth” (for lack of a better work) look in that area. Perhaps it’s the sheet metal screws screws, not sure.
As you can see I slightly deviated from the plans as I do not have the front lip under the turtledeck skin. The first ones I made (this is the third set) were like that but I found that too look even more odd and it left a small gap between the VS and the skin/fairing.
Perhaps painting will make it all look better? (For those who have not followed my build, I started polishing but have since decided to paint instead, hence the polished tail and unpolished fuselage).

I do now understand why some go through the effort of making one big single piece fibreglass fairing, looks much better indeed.
Perhaps I might still do that at a later stage but for now I want to get to the flying stage first ;-)

Anyway, I’m not particularly looking for any advice or anything here, I think I have the fairings as good as I’ll ever get them, just wanted to share my findings:

Image
Image
Image
Michael
Sonex #145 from scratch (mostly)
Taildragger, 2.4L VW engine, AeroInjector, Prince 54x48 P-Tip
VH-MND, CofA issued 2nd of November 2015
First flight 7th of November 2015
Phase I Completed, 11th of February 2016
http://www.mykitlog.com/rizzz/
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Re: Sonex Tail Fairings

Postby tonyr » Sun Feb 22, 2015 10:19 pm

Hi Michael,

I think they look better fitted under the skin at the front, but that's just me

Did you anneal the aluminium before bending?
Makes it much easier to form the shape and get a proper fit .


Cheers
Tony
Sonex #813
First Flight... 4 Oct 14
298 hours having fun!
http://sonexaus.wikispaces.com/Tony+%28Richo%29+Richardson+Sonex+813
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Re: Sonex Tail Fairings

Postby gammaxy » Sun Feb 22, 2015 10:25 pm

Looks great to me. Mine are fitted under the front skin. Any chance the contrast between the polished tail and unpolished fairing is making you think it looks worse than it really is?
Chris Madsen
Aerovee Sonex N256CM
Flying since September 2014
Build log: http://chrismadsen.org
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Sonex Tail Fairings

Postby Sonex1517 » Sun Feb 22, 2015 10:54 pm

I bent mine over an aluminum softball bat. Came out nice too.


Robbie Culver
Sonex 1517
Chicagoland
Tails and Wings complete - finishing fuselage.
N1517S reserved
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375+ hours
Jabiru 3300 Gen 4
Prince P Tip
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Re: Sonex Tail Fairings

Postby rizzz » Sun Feb 22, 2015 11:33 pm

tonyr wrote:Hi Michael,

I think they look better fitted under the skin at the front, but that's just me

Yeah, that was not the case with mine, perhaps things fit a bit tighter in that area in your build..

tonyr wrote:Did you anneal the aluminium before bending?
Makes it much easier to form the shape and get a proper fit .

Sure did. Then bent them over a 2.5” pipe.
I was surprised at how soft the material becomes after annealing, the first set I made was a write-off straight away as I immediately over-bent one and got a kink in it.

gammaxy wrote: Any chance the contrast between the polished tail and unpolished fairing is making you think it looks worse than it really is?

Probably.

Sonex1517 wrote:I bent mine over an aluminum softball bat. Came out nice too.

I can see how that would be even better, not many people own a softball bat in Australia though…

Anyway, at some stage I might still do something like this:
Image

Gotta admit, that looks really good!
Michael
Sonex #145 from scratch (mostly)
Taildragger, 2.4L VW engine, AeroInjector, Prince 54x48 P-Tip
VH-MND, CofA issued 2nd of November 2015
First flight 7th of November 2015
Phase I Completed, 11th of February 2016
http://www.mykitlog.com/rizzz/
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Re: Sonex Tail Fairings

Postby tonyr » Sun Feb 22, 2015 11:59 pm

Dunno metal on metal.. just looks right.. lol

I didn't bother attaching at the front either..

Image

Now for the fairing wars... *duck*
Sonex #813
First Flight... 4 Oct 14
298 hours having fun!
http://sonexaus.wikispaces.com/Tony+%28Richo%29+Richardson+Sonex+813
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Re: Sonex Tail Fairings

Postby rizzz » Mon Feb 23, 2015 12:06 am

That looks nice indeed.
Michael
Sonex #145 from scratch (mostly)
Taildragger, 2.4L VW engine, AeroInjector, Prince 54x48 P-Tip
VH-MND, CofA issued 2nd of November 2015
First flight 7th of November 2015
Phase I Completed, 11th of February 2016
http://www.mykitlog.com/rizzz/
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Posts: 869
Joined: Tue Jun 21, 2011 2:07 am
Location: Wollongong, NSW, Australia

Re: Sonex Tail Fairings

Postby DCASonex » Mon Feb 23, 2015 10:33 am

Another option for those tail fairings.
Since these supply no structural strength, I formed mine out of 6061-T6 aluminum that was only 0.016" thick. Very easy to form, no annealing required, the curvature gives plenty of strength, looks great

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