Time: 8 hrs
Over the past few days I installed and wired up the 4 Lemo jacks for the Pilot, Co-pilot and Passenger headsets. I decided to use Lemo Jacks because: A. Most ANR headsets come with a Lemo jack option, B. It simplifies wiring a bit, C. It’s easy to convert from Lemo to regular jacks, but a little harder to do the other way around, and D. I have an ANR headset with a Lemo jack so I want to plug that directly in and not have to use a converter. I purchased the pre-made jacks from Aircraft Spruce. They’re about $20 more than just the Lemon jack itself and saves some time in wiring. They come with 3 ft of wire soldered on to the Lemo Jack: a ground wire, power wire, Mic Hi and Lo, and Comm L & R. They’re designed to be wiring into an existing Mic/Phones type setup, but you can wire them directly if you don’t have existing audio jacks.
I also installed the USB port for the front seats. This is just a panel mount connector that connects to the USB port on the GMA245R. It just converts the USB-B connector on the GMA to a USB-A type port. Originally I was doing to put this on the instrument panel, but I have a USB charger in the center console in my car and I like it there so I figured it would be good to have it that way in the plane as well. It will also be convenient to store the cable in the box when not in use. The Lemo jackets for the Pilot and Co-pilot also were installed in the storage box.
I made up a quick template in FrontDesign to use for marking the drill holes. I was fortunate that I made the top of the storage box removable. It was much easier to drill these out with the top off. I purchased a 15/16″ punch to make the hole for the Neutrik USB port. I suppose I could have used the step drill, but I figured it would be easier and cleaner to use the punch.
For the passenger area I had installed the Stratus USB charger a while ago and now the Lemo jacks are finally done. To install the Lemos I just marked the location to drill and then used a step drill to get the hole to the correct, size (14mm or about 9/16″). I love the split wire jacket, I’ve started to use it in quite a few places now. It’s super easy to install and keeps all the cabling organized and protected. For the Lemo jacks I used it to organize the passenger wiring coming from the rear console cover and the pilot/co-pilot wiring coming from the storage box.
The Pilot and Co-pilot Lemos and the Neutrik USB port installed in the storage box.
Amazingly it all fits.
All done with the jack installation. Now just need to pin up the other ends and connect it the the main wire run back to the GMA.
The installation manual for the Lemo Jacks calls for 1/4A fuses or 1/2A circuit breakers. I found this on Amazon and thought with was kind of nice. It mounts on a DIN rail that I attached with some 1″ standoffs and a piece of aluminum. I didn’t want to drill the large holes for the M5 rivets into the supports here because the flap motor attaches here and thought it might weaken the support. The main feed runs to the VPX and is a 2A CB. This box then feeds that through the fuses and out to the headsets. The only thing better would be if it fed all the fuses directly from the main input like some fuse boxes do. This on I had to jumper over to each input
Another view of the fuse box ad the connector I had to wire up for the Lemo jack interconnect. I used 2 15 pin connects and ran the shields through for the shielded wires.
That’s all done. I’ll clean up the wires a bit more and secure everything down.
I finally received the left fuel tank skin so I can get back to working on the fuel tanks. TAF unfortunately sent me another right wing tip. I now have 3 right wing tips and no left. I guess I’ll have to wait for the next shipment for that. Anyways I’ll be shifting gears and getting back to the wings and finishing up the fuel tanks.
Lastly, I should be getting my custom floor mats from SCS Interiors very soon so can’t wait for that.