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Grayhawk,
Always the deep thinker.
You are correct to note the roll error. However, after working with
several 320/ 360 series roll errors I contend to have a better fix. The
flap lowering drag thing is too inefficient, ugly, and fails to address
the root problem (imho). I believe wings are to make lift. By
contrast, flap lift in cruise flight adds only to unwanted twisting
moments....
We removed the trailing
spar attach strap. Then we offset the two outboard holes on a new strap by
90 thousandths. After flying flight two today, the ailerons sit perfectly
flat with no roll component. There was no adjustment to the flaps. They
look good on the ramp (especially when you look at them
simultaneously!).
Now the real
ponderance. Should I make both left and right new trailing edge straps
with 45 thousandths correction on each side? This of course
would minimize that finger nail thickness of body work
error.....
Regarding flap
reflex...... This is a vintage 1987 glacially slow build 320. I
remember a long time ago that you almost convinced me that my FB 360 circa 1996
had the fillets set to the 7 deg reflex. "almost" because my
manual still said to set them 5/8" high (or so). I thought you were
working the FB aspect. Are you saying ALL 320/ 360 vintage fillets are
molded correct to 7 deg reflex? So only the 235s were to be
reflexed? Could Lancair maybe mention this manual / blue print error in a
SB?
But alas Mark and I both
concur that about 3 degrees vs. 7 is indeed faster. Anyway, yes they are
reflexed and surely they are supposed to be back in 1987, no? Convince
me.
BTW, the VEP up pressure switch lasted 2.2
hours. Not bad from what I hear. Lucky to have a spare new style switch in
my parts bin. More data collection tomorrow.
Larry
Rick,
Congrats!
Uh, the 320 slow build kit contained at least 121,432 parts, not to mention
all the extra hardware obtained from Ace and various race shops. It also
consumed 19,123 sheets of sandpaper.
Comments:
The flaps are flying too high in pic # 1 and 2.
In all pix, the left aileron is below the wing tip fairing usually
indicating a heavy left wing (very common). Re-rigging the flaps can help
with the heavy wing condition.
Grayhawk
In a message dated 2/17/2010 1:39:41 P.M. Central Standard Time,
LHenney@charter.net writes:
Lancair
Friends,
Put your hands together
for Rick Cathriner's most excellent 1st Flight. N41LA Certification occurred
earlier today with a very complimentary "no squawks" report from his DAR Dave
Eby.
N41LA took to the sky's
today after a 22 year gestation. Lady's and Gentleman I suspect we
have a record. Airborne initial testing shows again, no gripes, fast and
true. Builds Slow, Flies Fast! Does anyone remember how many pieces came
in the original 320 slow build kit?!!!
Still wishing someone
would step up with a Riechal Trim system. Anyone, anyone?
Bueller? I think we'll reverse engineer one from a local 320
flyer......
Congratulations Rick on a
Job Well Done! To you builders out there, never give up! To the
flyers, meet Rick for lunch sometime. He's earned at least one
free trip to the Hard Eights BBQ in Stephenville
(SEP).
Way to Go
Rick!
Larry
Henney
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