> Speaking of 747's, has anyone made a JSBSim 747 FDM, yet?  I've got some
> data.  If nobody has, I might give that a shot this evening. IT would at
> least be a start.

From Roskam:

Wt= 636,000
Ixx= 18200000
Iyy= 33100000
Izz= 49700000
Ixz= 970000
Clbeta= -.16
Clp= -.34
Clr= .13
Cnbeta= .16
Cnp= -.026
Cnr= -.28
CYbeta= -.9
CYp= 0
CYr= 0
Clda= .013
Cldr= .008
Cnda= .0018
Cndr= -.1
CYda= 0
CYdr= .12
CLalpha= 4.4
Cmalpha= -1
Cmadot= -4
Cmq= -21
CLde= .32
Cmde= -1.3
CD0= .0164

Dave
(afk two days)

-- 
****************************
David Culp
[EMAIL PROTECTED]
****************************

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