On Sep 8, 12:30*pm, Tony Condon
wrote:
At 17:00 08 September 2009, Martin Woodcock wrote:

Any comments on the digital artificial horizons currently on the market
would be really welcome.

I looked into this a few years ago and I preferred the Dynon unit. *I
liked that it had airspeed, heading altimeter, and attitude all in one
unit, was compact, and could be had with a backup battery that allowed
plenty of time to land if the ship's battery failed.

I trained a friend for his Instrument Rating in a Van's RV-7A that was
equipped with the D10 and found it perfectly sufficient for instrument
flying. *We did a lot of flying in actual conditions with it.

-Tony Condon
Cherokee II N373Y

Once recently, I sat a power pilot in a glider cockpit for his first
ride. "Where the attitude indicator?", he demanded. "Well", I said
with appropriate pointing gestures, "We use the big one in the sky."
"It's blue up there and brown down here with a line separating them we
call the horizon." He looked at me narrowly for a moment then said,
"Riiight...look outside".

The Dynon EFIS-D10A is a great "mini glass cockpit" solution for a
glider.