***
TESTIMONIALS ***
"...I
put the AMRD VG's on my PA-28-180C and I love them. I don't need
them for short fields or anything like that, but they are quite
cool to me.
My IAS in a Power Off Stall is now 4mph less. When you rotate on
takeoff, the plane now is willing to immediately go flying,
instead of mushing along in ground effect for 1,000 feet or so
before being willing to climb. I'd do it again, but don't
expect these things to suddenly turn your plane into a Super
Cub. I consider them a good safety improvement, and they do
give a slight, but decent increase in the off airport
performance you might be looking for.
There's enough of a change in my bird that more than one person
swears I have a 235 engine, instead of my 2,500 SMOH, 180
horsepower motor. Jeff"
"I've been flying
here in Alaska with Art's gap seals since 1997. I have nothing
but good things to say about them. Prior to installing the seals
(actually, I was on a trip to Wisconsin to visit family and flew
down to Art's place in Illinois where he installed them) I had
installed the MetcoAire wingtips and vortex generators from
AMR&D. They made one heck of a difference in stall speeds and
controllability at low speeds. Then I got the gap seals and saw
an increase in cruise speed. Not a lot, but I was much more
concerned with the low landing speeds since I fly out of
airstrips as short as 900 feet. For the price, I don't know how
you can go wrong. And, I've never met anyone who knows as much
about Cherokees as does Art Mattson. My flight instructor can't
believe how slow we fly before the plane stalls during my BFR's.
Somewhere between 42 and 45 mph. I highly recommend any of Art's
modifications. Rich S"
"I
run Art's gap seals on my Cherokee 150. Roll rate is noticeably
improved, perhaps as much as 20%, though I haven't measured it,
and pitch authority seems to be better too. Art doesn't blow
smoke -- you can pretty much count on any of his mods to do what
he says they will do. I'm also running his 160hp STC and prop
tip mod with 62" pitch. They make a big difference as well. As
an aside, I flew copilot with him in Juliet in the
Denver-Oshkosh air race a few years back. We did 903 statute
miles non-stop in 7 hours, 5 minutes, and a few-odd seconds,
landing at Appleton with an hour of fuel reserve remaining. Our
actual trip length was a bit over 903 miles because we flew
south of course by up to about 90 miles for a large portion of
the trip in an effort to minimize the effect of the strong
adverse headwinds during the initial part of the flight. Jim C"
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