Re: N 34 YZ Airworthiness


Subject:    Re: N 34 YZ Airworthiness
From:    WILLIAM O FISHER (bfisher6858@msn.com)
Date:    Mon Dec 01 - 6:56 AM
Gary:

CONGRATULATIONS! ! ! On your first flight Gary,
Oh, and your plane and instrument panel look great too!

Bill Fisher
N838BF
Now located at Glendale, AZ (GEU)
with about 90 hours


  ----- Original Message ----- 
  From: GARY PENNINGTON<mailto:pennington@q.com> 
  To: lightning-list<mailto:lightning-list@matronics.com> 
  Sent: Sunday, November 30, 2008 4:07 PM
  Subject: N 34 YZ Airworthiness


  Good afternoon everyone

  Yesterday was the end of my Lightning build process. She was certified 
"Airworthy" by the local DAR. Yeah!!!! At long last.
  Now, a new era begins....working out the bugs. 

  First thing this morning, I completed another thorough inspection and 
then performed taxi tests. All was good...except the warning messages 
from the EFIS. I am having difficulty programming the EIS, EFIS and the 
other black boxes. I'm not really computer challenged, but you wouldn't 
know now. Nothing seems to be communicating with the EFIS. I guess I'm 
going to have to bother Ben again. Sorry Ben. 

  After a few tweaks, I lined up on the active runway and applied 
throttle. With lots of right rudder and a whole lot of anxiety, I zoomed 
down the pavement. The first startling thing I noticed was the horrible 
oscillations in the gear legs beginning at about 20 mph. I remembered 
that other builders experienced the same thing but were able to 
eliminate it with balancing. So, I continued accelerating. At around 55, 
I rotated and climbed. The engine turned around 2700 rpms but had a 
slight vibration. I backed off to about 2600 rpms and it smoothed out. 
Weird. Warning messages from the EFIS continued squawking but all the 
temps and pressures were very good.

  After turning downwind, I backed off the throttle to approx. 1800 rpm 
to slow down and apply flaps. I discovered that I need to move my right 
leg as far down as possible to allow stick clearance for aileron 
authority. Also, the ailerons don't feel to be balanced. I'll call Mark 
or Nick for advice.

  After turning final, I pulled the throttle off for a nice decent. As 
it turned out, the idle was too low and the engine died. There was a 
certain amount of "Pucker Factor" involved at that moment but I was over 
the threshold and lots of runway ahead, so, I just set it down and 
rolled out. The transition training I received from Arion was life 
saving. Thanks guys.

  I spent the next several hours adjusting and tweaking. Afterward, I 
took off again and did five touch and gos. As I said in the beginning, I 
have bugs to work out but my girl flys! I have attached two photos for 
interested parties.

  Have a great day to all.

  Gary Pennington




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