September 29/16 I made another cross country test flight in
C-GMBK and once again it was to Red Deer Alberta. On this flight my primary test was to check
out the MGL V6 radio since getting new settings advice from MGL and from a
forum group. The new settings worked
perfect and have eliminated my excessive background static type noise. Both
groups informed me I needed to set my mic. Gain to -10.5db and one other
setting change. MGL and the forum also
informed I needed to set my radio to VOX and not VOG if using a ANR type
headset. The VOG is a proprietary
setting offering many adjustments for “Voice Automatic Gain Control” and is used primarily to give passive
headsets the ability to have quieter sound as found in ANR headsets. The changes recommended have totally cleared
all background noise I was encountering.
The sound was actually engine and cockpit noise amplified in the
“Sidetone” circuit creating high ambient noise.
I still have a snapping noise that has been isolated to the magnetos and
is likely the capacitors in the magneto, cost $300.00 for two. My plan is to put that money toward
installing a electronic ignition.
Now to the flight, it
was outbound at 6500 ft and I found my groundspeed up at 145mph. This was due to a 15mph tailwind which was
giving me a push. The engine ran like a
charm and I was very pleased to see all engine parameters staying once again
within normal ranges. Not like the last
flight which was a clear day, this day had a solid cloud layer at about
7000ft. I really enjoy the cloud cover
as I don’t get the greenhouse effect in the cockpit which can make it a bit to
warm at times. Air ventilation is working
fine and because this test flight was at 11 degrees “C”, I had to close off the eyeball vents. I can feel some cool air coming in through
the open spaces around my canopy frame and these will be closed with weather
stripping soon. This airplane is so
much fun to fly, it fly’s hands off and needs only light finger tip control on
the center stick. This is so much fun
and a great reward for the three years rebuilding CGMBK. The bonus is, I now have the pleasure of
cleaning bugs of my own airplane.
Track my plane at: http://aprs.fi/cgmbk
Web page: http://calvinthorne.blogspot.ca