As a continuation of my last post, I decided to buy some parts and start experimenting with actual electrons.
But first, I wanted to draw up my schematic in a way that’s presentable.
Here’s the latest schematic based on my latest “option 2” split bus architecture concept.
Lots to talk about here, but basically (and quoted from my last post):
I’m thinking about putting all of my essential items PLUS what’s needed for engine start on the E-BUS. I can climb in the airplane, turn on the e-Bus, and have PFD, GPS (NAV1 & COM 1), EMS, Trims, Fuel Pump, Nav Lts, Strobes, Audio Panel, and the Starter (but observe that other items are not powered, which means the diode is working).
I can start the airplane with those, see the aux alt charging the battery, flip on the main bus & Alt, and watch the main alt take over and the rest of the boxes power up. Now flip off the e-Bus contactor and make sure everything stays powered. I’ve now checked both alternators, both contactors, and the diode. No additional electrical checks are required. (Side note, on shutdown, stop the engine, then turn off main bus first, see the e-bus equipment stay powered, then turn off the e-bus.
With that settled (ha! it’ll change multiple times, I’m sure), I ordered some parts.
- 30A power supply – Amazon
- Contactors
- Diode
- Two Fuse blocks
- Ground bar – Lowes, just for this mockup
- Wire
- Fast-on connectors
- and a bunch of switches
The cool thing is when I flip the EBUS switch, the ebus comes on. When I flip the main bus switch, BOTH busses come on (as designed).
I would like to get these components mounted to a 2’x2′ plywood board so it can stay intact and move around the shop. Back to Lowes.
This was a fun departure from aluminum, but I’m ready for that dang wing kit to arrive.
1.5 hours.
