Vik,

Based on Maik's CG information and a little nosing around for
performance information online, I made an el-cheapo quick and dirty
FDM:

http://ltts.crlt.indiana.edu/grn/flightgear/sf25b-yasim.xml

Feel free to use it, lose it, abuse it, or whatever.

It's a bit tricky to takeoff and land, especially in any kind of
crosswind-- it takes a fair hand on the rudder. It also likes to glide
and glide once it gets close to the ground, so you'll definitely not
want to approach over 50 kts or you'll never get down. I often
side-slipped to help me get down. I disabled the linkage of the
spoilers with the wheel brake-- According to the book, brakes are
engaged only on the maximum spoiler setting, but I got tired of
nosing-over when I landed. ;) You might want to restore that.

I didn't try to match sink rate to real, I only tried to get the speed
range within reasonable norms and bring control surfaces effects to
something that felt reasonable. You might want to mess with the
spoiler settings, maybe increase the drag a bit, as the handbook says
they're pretty effective, and I tend to err on the understrength side.
I'm not a pilot, so definitely feel free to disregard anything I did.

-Gary, aka Buckaroo

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