ELEVATOR TRIM

Discussion for builders, pilots, owners, and those interested in building or owning a Onex.

ELEVATOR TRIM

Postby surfly » Tue Dec 16, 2014 8:21 am

I am building ONEX 0176 and would please like a general consensus of the need for the elevator trim system. I have had some builders voice that the system isn't necessary. I would certainly like to hear from those who have finished and fly their ONEX as well as other builders opinions.
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Re: ELEVATOR TRIM

Postby daleandee » Tue Dec 16, 2014 11:47 am

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Last edited by daleandee on Sun Apr 30, 2017 8:53 pm, edited 1 time in total.
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Re: ELEVATOR TRIM

Postby mike.smith » Tue Dec 16, 2014 6:23 pm

I also have the stock manual trim and love it. Super simple and super effective. You definitely want trim. I use it all the time for take-off, landing (especially), and cruise (like when changing power settings).
Mike Smith
Sonex N439M
Scratch built, AeroVee, Dual stick, Tail dragger
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Re: ELEVATOR TRIM

Postby GordonTurner » Tue Dec 16, 2014 8:19 pm

I'm still kicking around schemes for trim tabs on my Waiex. Building the wings now, but eventually I'll get to that. Anybody care to share the part of the sonex plans that shows the trim tab installation including (especially) the cable part?

Gordon
Waiex 158 New York. N88YX reserved.
3.0 Liter Corvair built, run, and ready to install.
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Re: ELEVATOR TRIM

Postby wlarson861 » Tue Dec 16, 2014 8:39 pm

I don't think a trim tab is an option o a Waiex. With the y tail you need to use the spring adjust that comes with the kit/
Bill Larson
N861SX
Sonex, polished, tail wheel, AeroVee Turbo
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Re: ELEVATOR TRIM

Postby Bryan Cotton » Tue Dec 16, 2014 8:59 pm

You could make a little trim mixer and have both rudder and elevator trim. That would be fun but a little nuts too. I plan to use the spring trim for pitch on my Waiex.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX reserved
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
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Re: ELEVATOR TRIM

Postby fastj22 » Tue Dec 16, 2014 9:33 pm

You would have to get rather innovative to put trim tabs on the Y tail. Just go with the spring system.

I started out with the DialATrim on my Waiex. I didn't like the limited travel of it and couldn't find a happy sweet spot.
I removed it and installed an electric trim of my own design using a 12V motor, cable spool and the same spring from the DialATrim.
Works great and I wired it to the up/down on a 4 way high hat on the stick. I put in another system to trim the ailerons on the left/right switch. It just biases springs on the aileron rods using the same winch spool on a small 12v Motor.

John Gillis
Waiex N116YX, Jabiru 3300, Tail dragger, SkyGuard ADS-B
First flight, 3/16/2013. 350+ hours and climbing.
Home: CO15. KOSH x 4 States landed in: CO, NB, NM, TX, OK, IA, KS, WI, IL, WY
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Re: ELEVATOR TRIM

Postby GordonTurner » Tue Dec 16, 2014 10:07 pm

Yes, slightly inovative but fun and totally nuts. I'd just like to see how the Sonex plans show the linkage.
Waiex 158 New York. N88YX reserved.
3.0 Liter Corvair built, run, and ready to install.
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Re: ELEVATOR TRIM

Postby fastj22 » Tue Dec 16, 2014 10:34 pm

I think Bonanzas have trim tabs. So someone figured it out.

John Gillis
Waiex N116YX, Jabiru 3300, Tail dragger, SkyGuard ADS-B
First flight, 3/16/2013. 350+ hours and climbing.
Home: CO15. KOSH x 4 States landed in: CO, NB, NM, TX, OK, IA, KS, WI, IL, WY
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Re: ELEVATOR TRIM

Postby Bryan Cotton » Wed Dec 17, 2014 8:31 am

The bonanza guys probably looked at the old model airplane (pre computer mixing) v-tail setups for inspiration on their trim. Or if you just want elevator trim move them together.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX reserved
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Working panel
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