>Larry,
>How much difference is there, landing with and without the board deployed? 
>Daniel R. Heath - Columbia, SC
+++++++++++++++++++++++++++++++++++++++++++++++++++++++=

When I deploy the speed brake and don't change pitch or power I
get about a 10mph drop in airspeed (rough guess) and an increase
in decent rate.  I seem to recall from a past post that it increases
my decent rate by 300+ fpm.  

When using the brake on landing it allows me to carry a bit of power
and it helps to keep the nose down for better visibility.  I think it's
easier to stabilize the airspeed on approach also.  Flying without it
would certianly be possible but I'd hate to be without it.  Like last
week when I was landing at a 3000 foot grass strip, approaching
along a hill, over a railroad track with powerlines, just over some
trees, two grain bins and a hangar, I was able to chop power at
the point 25 feet above ground and lower the nose a bit.  I was
down and stopped by approx 2000 feet.  It would not have been
as comfortable of an approach without the speed brake.  Each
KR flyer has a different comfort level, skills, and mission plan.
You be the judge.

One caution on the electrically operated speed brake.  You can
eat up a lot of runway waiting for the brake to retract.  I may 
change my setup to trade power for speed on the actuation.
A torque tube with different length arms maybe.  Right now
I have a direct push-pull setup.  You can eat up about 100 
feet of runway per second at 70 mph and my brake takes 
7 seconds to retract.  If you're not careful the pucker can pull 
the grin right off your face!  :-)  Not a problem when you have
lots of cement ahead of you but when you abort halfway down
a 2800 foot grass strip with trees on the end, well, that's 
best told over a brew or two.  

Larry Flesner



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