May 24, 2021     avionics       Category: Avionics

I decided to select Garmin products for this build mainly for resale purposes. I used Dynon in the 2 VFR SeaReys I built and loved their product also. The installation of the dynon products were easier than Garmin, but now that I have been through the installation process, the next Garmin build would be much easier. I have dual touch G3X's, a G5 back-up, and a Garmin 430W to make the GPS navigation IFR legal. I know the G430W is no longer in production but they are plentiful and relatively cheap. I only need it as a back-up radio and for IFR operations which will be minimal. I have a Garmin GTR20 remote com and a GTX 45R remote transponder. There is a 2 axis Garmin GMC507 auto pilot with a separate yaw damper system installed. Near the top of the panel is a GMA245 audio panel. I made all the panel cut outs myself and also designed/built the radio racks too. . I took advantage of the unused space near the firewall and installed most of my avionics equipment there including a GDL52R sirius XM reciever, GEA 24 EIS, GSU 25, and a GAD 29 Initially I cut out 2 access panels in the upper fuselage area to make it easier to get to the avionics, however after completing the process I decided to add riv nuts to the entire panel instead of riveting it permanently. This way if I ever need to do serious work behind the panel, it should be very easy to get to the equipment. There is a battery backup for the entire avionics system and an addition G5 battery backup also. A TOGA button is placed just in front of the "full throttle" position within easy reach for both take-off and go-arounds.

  Jul 21, 2021     electrical       Category: Avionics

The heart of the electrical system is the VPX PRO so there are no regular circuit breakers anywhere in the aircraft. There was a steep learning curve, at least for me, in learning how to set it up, but once I got the hang of it, it was pretty straight forward. Stein Air sold me all of my avionics and designed my wiring diagram. I can't say enough good things about this company and would HIGHLY recommend them! They drew out my wiring diagram for me and even printed it in full scale. I referenced that sheet many times and would still be wiring today if it weren't for them. I used their main wiring that Van's sells and I also asked them(Stein) to make a small harness to connect all the garmin products. The harness was flawless and saved me month's. I used a grounding block with many tabs (48 I think) believing this was overkill, however I still needed a few extra. The alternator is a 60 amp Plane Power that comes with the standard engine. I used a B&C 40 amp back up alternator attached to the accessory case. I removed the old fashioned magnetos and am using P-Mags instead. There is simply no comparison and not one reason where the Slicks had an advantage. I have a single battery(Odyssey) system even with P-Mags because of their self generating internal alternator that is the primary power source. I did install an IBBS back up battery for the avionics which can also substitute as a battery back up if both the primary E-Mag alternator and main battery both fail (extremely unlikely). I have installed a split, cessna type, master switch, an avionics master and a start master. The starter buttons are on each of the Tosten Stick Grips. If you have ever had to restart a dead engine with the prop stopped, you will completely understand why you want a start button on the grip (I've done it twice).