gerf(at)gerf.com
Guest
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 Posted: Tue Sep 26, 2006 11:32 am Post subject: What avionics checks are required pre-inspecction: ? (was: |
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(Yikes ! No wonder people end up flying into the side of a
mountain. Thanks for the heads up on the available adjustment
- that's helpfull.)
Can anyone point me in the right direction for a list of the
(certified?) avionics checks that have to be done and
documented before I call over the DAR ? I'm flying VFR, but I'd
happily go the extra mile and come up to IFR standard just for
the safety margin.
Thx
g
| Quote: | Gerry,
Before the first flight in my RV-7A, I had the airspeed
indicator, altimeter and transponder checked for IFR
tolerances. The Dynon EFIS-D10 was right-on altitude and within
2-3 KTS accuracy on airspeed from S/L up to 40KFT. The
mechanic doing the certification test was extremely impressed
with the accuracy of the Dynon EFIS-D10. You can also adjust
the Dynon altimeter up/down in 10 foot increments to correct
any errors that may be present. Mine is set at "0" and is nuts
on....
The same can not be said for the Van's/UMA back-up steam gauges
I installed. The airspeed indicator has a 10 KT fast error
that can not be adjusted. The altimeter was over 300 FT off but
CAN be adjusted. There is a small screw just left of the
adjustment knob on the altimeter. If I remember correctly, I
adjusted the altimeter to the known field elevation, loosen the
screw, then turn the adjustment knob to the correct barometric
reading (ie. 29.92, etc.) in the window. Once the field
elevation and the current barometric reading are both
correct.... tighten the adjustment screw and you are good to
go...
Jack Lockamy
RV-7A N174JL (240 hrs)
Camarillo, CA
www.jacklockamy.com
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Gerry Filby gerf(at)gerf.com
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