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Blog

Home
Blog
Panel Fitout 6

Panel Fitout 6

5 years ago
Dave Berenholtz
Blog, Ch 22 Electrical System
Date:  04-13-2020
Number of Hours:  20
Manual Reference:  22

Working out where to put things has been some hours staring and trying various possibilities. Probably several days work that I don’t put in my logged times. As I work out where something might go consideration for the connectors, putting the canard on and what else my proposed position will interfere with comes into play.

The GSU25 is the Garmin AHARS or air data sensor unit. There is a provided connecting place on the back of the large main display screen with holes pre drilled and good to just bolt on. However…. in the Garmin install manual it says don’t put it there because the panel might vibrate a little and the AHARS needs to be a solid mount to the airframe. I eventually decided on the spot above as marked out.

Here you can see the clickbonds getting floxed in place for the AHAR unit. Below that is the GAD 27 a flaps/lights/trim controller. While this spot looks random it fits nicely below the main panel. It has a connector pocking out at right angles so I needed this in line with the lower panel items and as close as possible so I can’t kick it getting in the plane.

I like using whatever is handy to hold things in place with the epoxy sets, plastic conduit, weights, gaffer tape cheapo clamps, whatever works.

After the clickbonds are epoxied on I do a one or two ply BID layup to really ensure they are not going anywhere. Yes thats peel ply so I get clean edge transitions.

This is another fix for the Bus Manager box install. I made the fasteners too far from the corner initially to avoid the canard attachment bolt. That was a fail, so a new bracket was made and I’ve built up the attachment point click bond with some height. The other two bonds in the corner can stay for now. It may hold wire bundles or something later.

Here’s what I mean. You can see the bracket now sits higher and all is good.

You can see the Bus Manager happily sitting is space now. Its like a rock.

My bits are mounted just in the right spots for when the panel is in place.

This box is the GAD 29B to interface the GTN750 with the Garmin G3X. Yeah I think it should be all built in but Garmin likes lots of separate boxes I assume for different combinations of their products. I have it with click bonds and on the bottom of the GTN750 tray. It sits right next to the GAD27 box on the side wall.

This install is like a Chinese puzzle box simply due to putting a ridiculous amount of stuff in a small space. A side by side seating airplane would have a much bigger panel area. Sitting in the middle of the plane is fantastic so just a ‘minor’ issue for a big reward.

Previous Post
Panel Fitout 5 (Bus Manager)
Next Post
Panel Fitout 7 (remote radio mounting)

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The Ferry Tank335
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Nose Gear Doors856
Wheel Pants/Gear Leg Fairing40473
Oxygen System762
Roll and Pitch Trim964
Winglet Intersection Fairings445
Baggage Pods11104
Pilot Side Windows437
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Main Gear Beef Up322
Post Cure124
Fire Extinguisher16
Wing Fences13
EVS (Enhanced Visual System)130
Hinge Upgrade115
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Rudder Gust Locks19
Cooling20607
Taxi Tests42
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