kens_cockpit
Well Known Member
I want to do IFR flight
I have a Dynon EFIS D10A as the principal flight instrument. It contains all the required flight instruments for IFR flight within it. I also has the internal battery option for backup.
I also have for backup an ordinary ASI and Altimiter, the Trutrak Pictorial T&B and the Trutrak Digiflight II VS Autopilot which has turn, altitude hold and vertical speed.
How should I organise the electrical redundancy? Is having the Dynon internal backup battery enough to cover the failure of the main system? If the Dynon and the alternator fail I can power the backup instruments from the battery alone. But if the alternator fails and the battery discharges that may not be enough. Should I have a second alternator or a second backup battery for the backup instruments?
Should I run the Dynon and the backup instruments off separate power buses?
I'ld appreciate your wisdom on this.
Ken Stanton
I have a Dynon EFIS D10A as the principal flight instrument. It contains all the required flight instruments for IFR flight within it. I also has the internal battery option for backup.
I also have for backup an ordinary ASI and Altimiter, the Trutrak Pictorial T&B and the Trutrak Digiflight II VS Autopilot which has turn, altitude hold and vertical speed.
How should I organise the electrical redundancy? Is having the Dynon internal backup battery enough to cover the failure of the main system? If the Dynon and the alternator fail I can power the backup instruments from the battery alone. But if the alternator fails and the battery discharges that may not be enough. Should I have a second alternator or a second backup battery for the backup instruments?
Should I run the Dynon and the backup instruments off separate power buses?
I'ld appreciate your wisdom on this.
Ken Stanton