Flight 6 observer on board

After 5.2 mechanically trouble free hours I felt that it was ok to bring on another person in the plane. My wife is an approved observer for the test period. This was a flight to familiarize her with the AC and also to test the intercom.

My intercom does not work! there is a loop in them making the sound become louder and louder... we had to remove our headsets and turn off the intercom. Something is still wrong with my headset wiring.

Another not so good landing :/

Flew with 90% power for a while, topped out at 178 kt indicated in level flight!