Instrument panel access

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

Instrument panel access

Postby dboeshaar » Mon Jun 24, 2024 7:35 pm

Greetings!

Just a note about how I'll be getting access to the instrument panel wiring. I have added two inspection plates to the glare shield.
For strength, they require a frame and covers. For simplicity, I purchased two RV-10 baggage compartment access plates from Van's Aircraft. I did squeeze the rivets to attach the frames and used Torx screws to attach the plates (instead of the counter sunk screws that come with it). I believe this looks better.

The glare shield will be painted flat dark grey.

How do they look?

panels.jpg
==============================================================
David Boeshaar
KWHP
TDAIRCRAFT.COM
My Greatest Fear: What if the Hokey Pokey really is what it's all about?
==============================================================
dboeshaar
 
Posts: 65
Joined: Wed Jan 27, 2021 5:21 pm
Location: KWHP, California

Re: Instrument panel access

Postby Kai » Tue Jun 25, 2024 10:41 am

As an idiot who has since 2005 been irritating himself green about not having provided any access for anything behind the panel, I´m hardly in a position to offer qualified comment. Still, I´m not convinced this solution will do much good. Of course; anything is much better than nothing! But it appears that we are looking at the glareshield for a Sonex B ? In that case- would not your windscreen be in the way every time you would need to get in there? In that case the windscreen would have to come off too! I have come to the conclusion that some solution where part of the panel is hinged at the bottom so that it could be tilted backwards with gauges and all, preferably with some of the glareshield/panel `roof` coming with it. I imagine that should ease up things considerably?
Sonex A #0525- SG, DS.
EdgePerfomance EP915ECI, 123HP
Kai
 
Posts: 305
Joined: Wed Jul 30, 2014 1:36 am
Location: ICAO ENHS

Re: Instrument panel access

Postby flyguy0609 » Tue Jun 25, 2024 1:39 pm

Not there in my build yet, but I'm thinking something that slides out and pivots down to provide easy access. Currently looking at a t-slot solution.
For example a 1.00" X 1.00" T-slot rail with 4 slots weights 0.509 lbs per linear feet. A single slit 1" x 1/2 " single slot rail weighs in a 1/4 lb per linear foot. There are all sorts of options for fasteners and connectors. The fasteners will slide in the rail until you tighten them up. Cables and wires will need to be lengthened to accommodate the slide out distance. Longer cables mean more opportunity for signal noise. Here is a a you tube video showing a cube with sliding drawer for an idea on how it might work.

https://www.youtube.com/watch?v=A4IYXQp0SlU
flyguy0609
 
Posts: 46
Joined: Tue Aug 03, 2021 12:17 pm

Re: Instrument panel access

Postby mike.smith » Tue Jun 25, 2024 11:17 pm

I made the entire center section removable, with 4 short piano hinge sections. I can remove the whole center section in about 10 seconds. The 6 screws I originally installed on the two ends, I never ended up needing or using, so I made a new center section later, with just the 4 hinges.

http://www.mykitlog.com/users/display_l ... 450&row=80
http://www.mykitlog.com/users/display_l ... 561&row=79
http://www.mykitlog.com/users/display_l ... 016&row=72
http://www.mykitlog.com/users/display_l ... 244&row=66
http://www.mykitlog.com/users/display_l ... 022&row=35

And the center section is so easy to make, if you make an instrument change, you just make a new center section. I've done that once.

You can also see the panel in my video: https://www.youtube.com/watch?v=Lbgek8-X14o
At 8 min 53 sec.
And 10 min 15 sec.
Mike Smith
Sonex N439M
Scratch built, AeroVee, Dual stick, Tail dragger
http://www.mykitlog.com/mikesmith
mike.smith
 
Posts: 1430
Joined: Tue Jan 29, 2013 8:45 pm

Re: Instrument panel access

Postby Bryan Cotton » Tue Jun 25, 2024 11:41 pm

mike.smith wrote:I made the entire center section removable, with 4 short piano hinge sections. I can remove the whole center section in about 10 seconds. The 6 screws I originally installed on the two ends, I never ended up needing or using, so I made a new center section later, with just the 4 hinges.

You are killing me here. Although I was warned. I wish I heeded. This is a nice installation!

Dave, anything is better than nothing. I have nothing. Sucks to work on.
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
User avatar
Bryan Cotton
 
Posts: 5489
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77

Re: Instrument panel access

Postby WaiexB22 » Wed Jun 26, 2024 10:46 am

I hate rivnuts, but I used them to hold my panel in. I couldn't fit nut plates on the flanges at the radius on the flange for the glare shield for the b-model (I'm not sure this would be the case on a legacy). Definitely not as easy as the hinges, but I can drop the panel for access. Obviously once it is wired I will be limited in how far I can move it, but I plan to leave enough slack in the harness to gain access to anything I need.

IMG_1587.jpg


IMG_1607.jpg
Robert
Waiex-B 0022
Yamaha Apex
Building
WaiexB22
 
Posts: 118
Joined: Thu Jun 08, 2023 1:56 pm


Return to Sonex-B / Waiex-B

Who is online

Users browsing this forum: No registered users and 4 guests