201 lines
7.4 KiB
XML
201 lines
7.4 KiB
XML
<!-- There weren't many YF23s - just the two prototypes - and I
|
|
couldn't find much 'hard' information so a lot of this fdm is
|
|
guess work (GW).
|
|
-->
|
|
<!-- Max take off weight is 64000lb so I'm allocating 4xAIM-9,
|
|
4x AIM-120, pilot and fuel and adding them as ballast entries
|
|
until I sort out correct weight entries.
|
|
|
|
GW figures for these are
|
|
|
|
Aim-9 200lb x 4 = 8000lb
|
|
AIM-120 400lb x 4 = 16000lb
|
|
Pilot 200lb x 1 = 200lb
|
|
|
|
Fuel 24000lb x 1 = 24000lb (from a web-site)
|
|
-->
|
|
<airplane mass="40000">
|
|
|
|
<!-- Approach configuration -->
|
|
<!-- From GW & photos -->
|
|
<approach speed="110" aoa="7">
|
|
<control-setting axis="/controls/throttle[0]" value="0.05"/>
|
|
<control-setting axis="/controls/throttle[1]" value="0.05"/>
|
|
<control-setting axis="/controls/flaps" value="0.7"/>
|
|
<!--
|
|
<control-setting axis="/controls/slats" value="0.3"/>
|
|
-->
|
|
<control-setting axis="/controls/gear-down" value="1"/>
|
|
</approach>
|
|
|
|
<!-- Cruise configuration -->
|
|
<cruise speed="900" alt="35000">
|
|
<control-setting axis="/controls/throttle[0]" value="1.0"/>
|
|
<control-setting axis="/controls/flaps" value="0.0"/>
|
|
<!--
|
|
<control-setting axis="/controls/slats" value="0.0"/>
|
|
-->
|
|
<control-setting axis="/controls/gear-down" value="0"/>
|
|
</cruise>
|
|
|
|
<cockpit x="5.70" y="0.00" z="1.26"/>
|
|
|
|
<!-- Fuselage entries for the fuselage proper and the two
|
|
engine housings. The YF23 is basically a wing with
|
|
these three fuselage/housings, and the elevator. For
|
|
this reason I've started the wings from the center-line.
|
|
-->
|
|
<!-- Fuselage proper -->
|
|
<fuselage ax="10.00" ay="0.00" az="0.00"
|
|
bx="-2.00" by="0.00" bz="0.00"
|
|
width="1.6" taper="0.1" midpoint="0.3"/>
|
|
|
|
<!-- Left engine housing (Excl intakes) -->
|
|
<fuselage ax="-2.00" ay="1.80" az="0.00"
|
|
bx="-8.00" by="1.20" bz="0.60"
|
|
width="1.2" taper="0.1" midpoint="0.3"/>
|
|
|
|
<!-- Right engine housing (Excl intakes) -->
|
|
<fuselage ax="-2.00" ay="-1.80" az="0.00"
|
|
bx="-8.00" by="-1.20" bz="0.60"
|
|
width="1.2" taper="0.1" midpoint="0.3"/>
|
|
|
|
<!-- GW stall characteristics -->
|
|
<wing x="-2.00" y="0.00" z="0.25" length="6.66" chord="12.00"
|
|
taper="0.08" sweep="0" dihedral="0" camber="0.0">
|
|
<stall aoa="58" width="1" peak="1.3"/>
|
|
<flap0 start="0.36" end="0.63" lift="1.2" drag="1.4"/>
|
|
<flap1 start="0.63" end="0.89" lift="1.1" drag="1.1"/>
|
|
<!--
|
|
<slat start="0.42" end="0.89" aoa="3" drag="1.1"/>
|
|
-->
|
|
<control-input axis="/controls/flaps" control="FLAP0"/>
|
|
<control-input axis="/controls/aileron" control="FLAP1" split="true"/>
|
|
<!--
|
|
<control-input axis="/controls/slats" control="SLAT"/>
|
|
-->
|
|
<control-input axis="/controls/aileron-trim" control="FLAP1" split="true"/>
|
|
|
|
<control-output control="FLAP0" prop="/surface-positions/flap-pos-norm"/>
|
|
<control-output control="FLAP1" side="left" prop="/surface-positions/left-aileron-pos-norm"/>
|
|
<control-output control="FLAP1" side="right" prop="/surface-positions/right-aileron-pos-norm"/>
|
|
<!--
|
|
<control-output control="SLAT" side="left" prop="/surface-positions/left-slat-pos-norm"/>
|
|
<control-output control="SLAT" side="right" prop="/surface-positions/right-slat-pos-norm"/>
|
|
-->
|
|
<control-speed control="FLAP0" transition-time="10"/>
|
|
<control-speed control="FLAP1" transition-time="0.5"/>
|
|
|
|
</wing>
|
|
|
|
<hstab x="-8.60" y="2.40" z="0.36" length="3.30" chord="5.10"
|
|
taper="0.11" sweep="0" dihedral="40" effectiveness="-2.5">
|
|
<stall aoa="
|
|
22
|
|
" width="2" peak="1.3"/>
|
|
<flap0 start="0" end="1" lift="1.1" drag="1.2"/>
|
|
|
|
<control-input axis="/controls/elevator" control="FLAP0"/>
|
|
<control-input axis="/controls/elevator-trim" control="FLAP0"/>
|
|
|
|
<control-output control="FLAP0" side="left" prop="/surface-positions/left-elevator-pos-norm"/>
|
|
<control-output control="FLAP0" side="right" prop="/surface-positions/right-elevator-pos-norm"/>
|
|
|
|
<control-speed control="FLAP0" transition-time="0.5"/>
|
|
</hstab>
|
|
|
|
<!-- The only figures I've found for the F119-PW-100L give 35000lb
|
|
'class' with afterburner. The difference between the top speed
|
|
with and with out afterburner (mach 1.43 vs mach 2) suggests that
|
|
the afterburner ratio is << 2:1 so I've used a ratio suggested by
|
|
those mach speeds + plus a fudge factor = 0.7. Also, the engine has
|
|
thrust vectoring but I've not worked that out yet.
|
|
-->
|
|
<jet x="-6.26" y="1.20" z="0.60" mass="3000" thrust="24500" afterburner="35000">
|
|
<control-input axis="/controls/throttle[0]" control="THROTTLE"/>
|
|
<control-input axis="/controls/afterburner[0]" control="REHEAT"/>
|
|
</jet>
|
|
|
|
<jet x="-6.26" y="-1.20" z="0.60" mass="3000" thrust="24500" afterburner="35000">
|
|
<control-input axis="/controls/throttle[1]" control="THROTTLE"/>
|
|
<control-input axis="/controls/afterburner[1]" control="REHEAT"/>
|
|
</jet>
|
|
|
|
<!-- Front -->
|
|
<gear x="5.25" y="0.00" z="-2.25" compression="0.65" spring="2.0">
|
|
<control-input axis="/controls/rudder" control="STEER" square="true"/>
|
|
<!--
|
|
<control-input axis="/controls/brakes[0]" control="BRAKE"/>
|
|
-->
|
|
<control-input axis="/controls/gear-down" control="EXTEND"/>
|
|
<control-output control="EXTEND" prop="/gear/gear[0]/position-norm"/>
|
|
<control-speed control="EXTEND" transition-time="4"/>
|
|
<control-output control="STEER" prop="/gear/gear[0]/steering-norm"/>
|
|
</gear>
|
|
|
|
<!-- Left main -->
|
|
<!--
|
|
<gear x="-2.20" y="1.92" z="-2.7" compression="1.2" spring="1.5">
|
|
-->
|
|
<gear x="-2.20" y="1.92" z="-2.25" compression="0.65" spring="1.5">
|
|
<control-input axis="/controls/brakes[0]" control="BRAKE"/>
|
|
<control-input axis="/controls/gear-down" control="EXTEND"/>
|
|
<control-output control="EXTEND" prop="/gear/gear[1]/position-norm"/>
|
|
<control-speed control="EXTEND" transition-time="4"/>
|
|
</gear>
|
|
|
|
<!-- Right main -->
|
|
<!--
|
|
<gear x="-2.20" y="1.92" z="-2.7" compression="1.2" spring="1.5">
|
|
-->
|
|
<gear x="-2.20" y="-1.92" z="-2.25" compression="0.65" spring="1.5">
|
|
<control-input axis="/controls/brakes[0]" control="BRAKE"/>
|
|
<control-input axis="/controls/gear-down" control="EXTEND"/>
|
|
<control-output control="EXTEND" prop="/gear/gear[2]/position-norm"/>
|
|
<control-speed control="EXTEND" transition-time="4"/>
|
|
</gear>
|
|
|
|
<!-- Canopy -->
|
|
<gear x="4.1" y="0.0" z="1.05" retract-time="7" compression="0.6">
|
|
<control-input axis="/controls/parking-brake" control="EXTEND"/>
|
|
<control-speed control="EXTEND" transition-time="10"/>
|
|
<control-output control="EXTEND" prop="/canopy/position-norm"/>
|
|
</gear>
|
|
|
|
<!-- The locations and capcities are GW. -->
|
|
<!-- Fuselage tank -->
|
|
<tank x="1.5" y="0" z="0.68" jet="true" capacity="8000"/>
|
|
<!-- Left wing tank -->
|
|
<tank x="-1.40" y="2" z="0.0" jet="true" capacity="8000"/>
|
|
<!-- Right wing tank -->
|
|
<tank x="-1.40" y="-2" z="0.0" jet="true" capacity="8000"/>
|
|
|
|
<!-- Avionics -->
|
|
<ballast x="4" y="0" z="0.6" mass="3000"/>
|
|
|
|
<!-- Cockpit and radar -->
|
|
<ballast x="7" y="0" z="0.2" mass="1500"/>
|
|
|
|
<!-- Pilot -->
|
|
<ballast x="5.8" y="0" z="0.6" mass="200"/>
|
|
|
|
<!-- AIM-9 x 2 Left -->
|
|
<ballast x="-0.85" y="2.40" z="-0.23" mass="200"/>
|
|
<ballast x="-0.85" y="2.24" z="-0.46" mass="200"/>
|
|
|
|
<!-- AIM-9 x 2 Right -->
|
|
<ballast x="-0.85" y="-2.40" z="-0.23" mass="200"/>
|
|
<ballast x="-0.85" y="-2.24" z="-0.46" mass="200"/>
|
|
|
|
<!-- AIM-120 x 2 Left -->
|
|
<ballast x="-1.2" y="2.02" z="-0.52" mass="400"/>
|
|
<ballast x="-1.2" y="1.74" z="-0.52" mass="400"/>
|
|
|
|
<!-- AIM-120 x 2 Left -->
|
|
<ballast x="-1.2" y="-2.02" z="-0.52" mass="400"/>
|
|
<ballast x="-1.2" y="-1.74" z="-0.52" mass="400"/>
|
|
|
|
<!-- Trim ballast -->
|
|
<ballast x="6" y="0" z="0.0" mass="1000"/>
|
|
|
|
</airplane>
|