On Monday, September 26, 2016 at 8:17:06 PM UTC-5, wrote:
The mechanical vario and compass may have disappeared from your consciousness, but I bet they are still on the required equipment list from your glider's manufacturer. Something to remember at your next annual inspection. Just sayin'

Compass, yes, unfortunately (so I have a small PZL hidden behind my Oudie). Vario - not at all.

I feel safer with an all-glass cockpit (with suitable power supplies) than with any mechanical instrument. ASIs, altimeters, varios - the mechanical ones have all failed much more frequently than any of my electronic instruments.

And if all the blue smoke escapes, then it's back to basic airmanship. Look out the window, fly pitch attitude, feel the air... BTDT (due to mechanical instrument failures).

YMMV, of course ;^) A glass cockpit in a 2-33 would be a bit weird!

Kirk
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