Sonex B Counterbalance

Discussion for builders, pilots, owners, and those interested in building or owning a second generation Sonex or Waiex.

Sonex B Counterbalance

Postby pfhoeycfi » Tue Jan 08, 2019 4:32 pm

Where the counterbalance plates exit the front of the aileron there is a series of rivets required along the sides of the plates and then there are 4 rivets that go thru the hinge, the skin and into the counterbalance ribs. I'm curious how builders have been setting these rivets, especially the 4 mentioned since the plates are blocking access...meaning I cant get the rivet gun or any of my hand rivet pullers anywhere near the right position to pull the rivet because the plates are in the way.

The rivets along the side of the plates wont be easy but they are do-able...its the 4 thru the hinge that have me stuck. I used a 12" bit to drill those holes so that the drill would be clear of the plates.

any advice would be appreciated.

thanks

peter
SNB0021
Peter Hoey
SEL Pvt, Comm Glider, CFIG, Pawnee & L19 Towpilot
Philadelphia Glider Council
Sonex B SNB0021, N561PH, Taildragger, Aerovee Turbo, MGL MX1, First flight Dec 18, 2022
Also built Sonerai IIL N86PH
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Re: Sonex B Counterbalance

Postby Concorde » Tue Jan 08, 2019 5:54 pm

Can you post a picture ?
Ben
Sonex # 1684
Tri-Gear, Dual Control
Rotax 912uls
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Re: Sonex B Counterbalance

Postby Bryan Cotton » Tue Jan 08, 2019 7:05 pm

Check out this tool thread:
viewtopic.php?f=34&t=2345

It has this link:
viewtopic.php?f=43&t=2300&start=10
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
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Re: Sonex B Counterbalance

Postby pfhoeycfi » Wed Jan 09, 2019 5:56 am

Bryan Cotton wrote:Check out this tool thread:
viewtopic.php?f=34&t=2345

It has this link:
viewtopic.php?f=43&t=2300&start=10


That's exactly what I was talking about. Thanks. I had updrilled all the parts and disassembled only to discover that I drilled those two inside holes too close to the plates ruining the support bracket on the other side of the skin. Not sure how to recover from this thinking I should have stuck with triathlon....prob need to order more parts and. start the aileron over
Thanks...
Peter
Peter Hoey
SEL Pvt, Comm Glider, CFIG, Pawnee & L19 Towpilot
Philadelphia Glider Council
Sonex B SNB0021, N561PH, Taildragger, Aerovee Turbo, MGL MX1, First flight Dec 18, 2022
Also built Sonerai IIL N86PH
pfhoeycfi
 
Posts: 384
Joined: Wed Jun 28, 2017 3:45 pm

Re: Sonex B Counterbalance

Postby Spaceman » Mon Jan 14, 2019 9:39 pm

That little PRG 410 rivet puller is the most useful thing I've bought! I found one on ebay for like $8 and it has been a lifesaver. I don't even know how you could build this plane without one.

https://www.ebay.com/sch/i.html?_from=R ... 0&_sacat=0
Chris Paegelow
N21YX / Waiex-B #21 / Roseville, CA
http://paegelow.blogspot.com/
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