I think he's referring to Art Mattson's high performance take-off procedure
for Cherokees.

See http://www.pipermods.com/


"Stephen N Mills" wrote in message
...
I guess I missed something.... What is "Mattisons procedure"?

Steve Mills


On Tue, 02 Jan 2007 21:13:28 -0400, Dave
wrote:

In the FWIW department....

Been "Playing" ....carefully..

Not very scientific, but thought I would share this anyway....

Our Warrior was light, 1/2 fuel, me alone (165 lbs) 60lbs in baggage
...

-6 Deg C,

Did some takeoffs using Mattisons procedure without the rolling
start...

45 mph, dropped 2 notches, counted "thousand 1, thousand 2", and
hauled back.. a LOT! (but not all the way, kind of timid yet)

When the flaps went down, the plane instantly popped up on the
struts...

When I rotated, the plane literally leaped off the rny! I had 50 AGL
in a few seconds..

The deck angle was scary!- but it kept on going....

NO WAY would I have been able to do that before..

Art says that if you do it properly, the stall warning horn should
emit a short beep at rotation, and the yoke should come ALL the way
back..

BTW, at this load, temp and 3000 ft agl, I was stalling at 40 knts
indicated with 40 degs of flap. Anyone have any formula to work out
the calibrated AS at that angle?

The POH (PA-28 151) leaves a bit to be desired here..

Interesting day....


Dave