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Installing the Instrument Panel

April 23, 2018 Art Zemon

Using an EFIS instead of “steam gauges” in my Bede BD-4C airplane allowed me to simplify the instrument panel. BD-4 panels usually have the instruments in the main part of the panel; an angled lower section with a few more instruments, circuit breakers, and switches; and then a console with the fuel selector and engine controls. The EFIS, even with dual 10 inch screens, uses little enough panel space that I eliminated the console entirely and shrank the lower section. I ended up with a single, flat panel. Here is one of my mock ups.

Instrument panel mock up
Instrument panel mock up

With the mock up done, I designed the panel with Inkscape and worked with Laciny Bros. to have it cut on their waterjet from a sheet of .063 aluminum. They also bent a flange along the bottom edge, to add some rigidity.

With the radio stack mounted on the back of the instrument panel, I installed the instrument panel in my Bede BD-4C. There is a large angle running the width of the cabin which carries the weight of the panel. Here is a photo of the panel being test fit to that angle.

Test fitting Bede BD-4C instrument panel
Test fitting Bede BD-4C instrument panel

I added six additional angles to stabilize the panel.

Angles along top of Bede BD-4C instrument panel
Angles along top of Bede BD-4C instrument panel
Small angle stabilizing bottom corner of Bede BD-4C instrument panel
Small angle stabilizing bottom corner of Bede BD-4C instrument panel

With the instrument panel bolted into the plane, I installed the MGL iBOX and iEFIS screens, the radio stack, and set the switches and fuel selector in place for a glamor shot.

MGL iBOX attached to the cabin side of the Bede BD-4C firewall
MGL iBOX attached to the cabin side of the Bede BD-4C firewall
Bede BD-4C instrument panel with MGL iEFIS and radios powered up
Bede BD-4C instrument panel with dual MGL iEFIS screens and radios powered up

Seeing all of the electronics successfully powered up was one of the best days of my life!

Bede BD-4C

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About Art Zemon

Omni-curious geek. Husband. Father. Airplane builder & pilot. Bicyclist. Photographer. Computer engineer.

Comments

  1. Craig Louis says

    April 24, 2018 at 2:48 pm

    Looks great! Did you coat the installed panel? It looks black.

    • Art Zemon says

      April 24, 2018 at 2:55 pm

      I used a truck bed liner in a spray can from the aviation aisle at Home Depot

  2. John Brecher says

    April 24, 2018 at 3:23 pm

    Looks super! Makes my BD-4 panel look like prehistoric!

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