MS 132 NASA, Hampton, VA 23681

Mod C, 2013-04-19 A simple, made-up aero model for a standard US face brick that provides rate damping but no other force or moment reactions aside from constant drag for use in the 2012 NASA NESC EOM verification data project. Corrected name and calculation of PBO2V (had duplicate RB02V, thanks to alert reader Deleena Noble of DFRC. Increased the damping values a hundred-fold to make damping more apparent. Corrected pitch rate damping value. Reference area of brick aero model (assumed area is 8" by 4") Width of brick model (4"), used as reference lateral length Length of brick model (8"), used as reference longitudinal length Constant fake roll damping due to roll rate of brick test vehicle Constant fake roll damping due to yaw rate of brick test vehicle Constant fake pitch damping of brick test vehicle Constant fake yaw damping due to roll rate of brick test vehicle Constant fake yaw damping due to yaw rate of brick test vehicle Velocity of vehicle w.r.t. airmass, ft/sec (always +) Body-axis roll rate, radians/sec (+right wing down) Body-axis pitch rate, radians/sec (+aircraft nose up) Body-axis yaw rate, radians/sec (+aircraft nose right) Non-dimensionalized body roll rate w.r.t. airmass $\frac{\mathrm{PB}\mathrm{BSPAN}}{2.0\mathrm{VRW}}$ Non-dimensionalized body pitch rate w.r.t. airmass $\frac{\mathrm{QB}\mathrm{CBAR}}{2.0\mathrm{VRW}}$ Non-dimensionalized body yaw rate w.r.t. airmass $\frac{\mathrm{RB}\mathrm{BSPAN}}{2.0\mathrm{VRW}}$ Coefficient of Lift Fake coefficient of drag for a standard brick Coefficient of Sideforce Cl = Clp*pb/2V + Clr*rb/2V $\mathrm{CLP\_DAMPING}\mathrm{PBO2V}+\mathrm{CLR\_DAMPING}\mathrm{RBO2V}$ Cm = Cmq*qc/2V $\mathrm{CMQ\_DAMPING}\mathrm{QCO2V}$ Cn = Cnp*pb/2V + Cnr*rb/2V $\mathrm{CNP\_DAMPING}\mathrm{PBO2V}+\mathrm{CNR\_DAMPING}\mathrm{RBO2V}$