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Kurt Haller RV-9A
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Date: 8-4-2019
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Number of Hours: 0.00
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Manual Reference:
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Brief Description: Back-up EFIS install
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Borrowed chapter 663's 3-1/8" hole punch and installed the AV-Map Ultra back-up instrument. Hooked it into the static system, teeing off the line to the ALT STATIC valve. The pitot line can be seen in image 1, draping over the canopy deck on the left side. The unit has an integrated GPS receiver (it's antenna puck is on the glareshield, l.h. side) and magnetometer. I wasn't particular testing the location for mag interference, however. The unit will display GPS-derived tracks (as magnetic headings) until the magnetometer is calibrated, but if the cal is hopelessly off it doesn't matter very much. The airspeed and altitude taps are the main reason to put it in. The attitude indicator, slip/skid ball, and VS indicators are nice to have, and one can switch the unit to HSI mode and see bearings to navaids stored in its database. Not bad for <1 AMU, better then 2x less that a G5 or Dynon Pocket Panel. The latter violates the back up with a completely different mfgr rule, and the PP has no pitot/static inputs.
The unit takes 14V and GND, and draws less than 1 A. It has two RS232 out lines, but I don't have anything to feed the data to. I could run all the wires and pitot/static lines sitting in the cockpit, but brought in number two son to run the GND wire to the firewall FOT and tie it up.
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Contortionist--works for food.
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