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ask21.xml
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ask21.xml
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<?xml version="1.0"?>
<!--Herby notes:
Original:
approach speed="38" aoa="2.7" glide-angle="5.2"
cruise speed="52" alt="5000" glide-angle="4.7"
wing: stall aoa="23" width="8" peak="1.5"
YASim solution results:
Iterations: 4241
Drag Coefficient: 2.49345
Lift Ratio: 2896.94
Cruise AoA: 1.2866
Tail Incidence: -2.74599
Approach Elevator: 0.0859411
CG: 1.060, -0.000, 0.765
63 km/h = 34.0 kts Stall speed
140 km/h = 75.6 kts Reisespeed 1.6 m/s
km/h = 25.0 kts m/s 0.98 1.05
km/h = 30.0 kts m/s 0.88 1.05 1.12 0.90
63 km/h = 34.0 kts 1.80 m/s 0.80 0.94 0.96 0.84 aoa 23>21 aoa 21>22.7 0.83
66 km/h = 35.6 kts 1.00 m/s 0.79 0.91 0.93 0.82 0.80 0.82
70 km/h = 37.8 kts 0.80 m/s 0.82 0.90 0.90 0.80 0.78 0.80
82 km/h = 44.2 kts 0.75 m/s 0.82 0.86 0.86 0.80 0.76 0.80
140 km/h = 75.6 kts 1.60 m/s 1.89 1.64 1.50 1.62 1.46 1.60
180 km/h = 97.2 kts 2.90 m/s 3.63 3.04 2.70 3.01 2.70 2.97
-->
<airplane mass="720" version="YASIM_VERSION_CURRENT">
<!-- Approach configuration -->
<approach speed="38" aoa="2.7" glide-angle="5.2">
</approach>
<!-- Cruise configuration -->
<cruise speed="75.6" alt="5000" glide-angle="4.7">
<control-setting axis="/controls/flight/elevator-trim" value="0.2"/>
</cruise>
<!-- pilot's eyepoint -->
<cockpit x="2.5396" y="0" z="0.94214"/>
<fuselage ax="4.14514" ay="0.0" az="0.43618" bx="-3.76945" by="0.0" bz="0.73498" width="0.68" taper="0.28" midpoint="0.25" idrag="1"/>
<wing x="0.88522" y="0.370" z="0.73669" taper="0.15" incidence="2.0" twist="-2.5" length="8.334" chord="1.445" sweep="-5" dihedral="3.5">
<stall aoa="22.7" width="8" peak="1.5"/>
<flap0 start="0.43" end="0.97" lift="1.3" drag="3.2"/>
<flap1 start="0.0" end="0.4" lift="0.15" drag="1.70"/>
<spoiler start="0.34" end="0.44" lift="-4.3" drag="75.5"/>
<control-input axis="/controls/flight/aileron" control="FLAP0" split="true"/>
<control-input axis="/controls/flight/stallflap" control="FLAP1"/>
<control-output control="FLAP0" side="left" prop="surface-positions/left-aileron-pos-norm"/>
<control-output control="FLAP0" side="right" prop="surface-positions/right-aileron-pos-norm"/>
<control-speed control="FLAP0" transition-time="0.5"/>
<control-speed control="FLAP1" transition-time="0.05"/>
<control-input axis="/controls/engines/engine/throttle" control="SPOILER" src0="0" src1="1.0" dst0="1.0" dst1="0"/>
<control-output control="SPOILER" prop="/surface-positions/speedbrake-pos-norm"/>
<control-speed control="SPOILER" transition-time="0.8"/>
</wing>
<hstab x="-3.67143" y="0.0" z="2.02347" taper="0.4" length="2" chord="0.861" sweep="0">
<stall aoa="27" width="10" peak="1.5"/>
<flap0 start="0.0" end="0.89" lift="1.3" drag="1.25"/>
<control-input axis="/controls/flight/elevator" control="FLAP0"/>
<control-input axis="/controls/flight/elevator-trim" control="FLAP0"/>
<control-output control="FLAP0" prop="/surface-positions/elevator-pos-norm" min="-4" max="4"/>
</hstab>
<vstab x="-3.5" y="0" z="0.76475" taper="0.75" effectiveness="2.5" length="1.2" chord="1.2" sweep="9">
<stall aoa="25" width="14" peak="1.2"/>
<flap0 start="0" end="0.88" lift="1.5" drag="1.3"/>
<control-input axis="/controls/flight/rudder" square="true" control="FLAP0" invert="true"/>
<control-input axis="/controls/flight/rudder-trim" control="FLAP0" invert="true"/>
<control-output control="FLAP0" prop="/surface-positions/rudder-pos-norm" min="4" max="-4"/>
</vstab>
<!-- nose wheel -->
<gear x="3.25256" y="0" z="0.09253" compression="0.01" spring="0.5" damp="0.05" dfric="0.8" sfric="1.2" />
<!-- main wheel-->
<!--Brake is tied to (full) airbrake-->
<gear x="0.99095" y="0" z="0.02933" compression="0.05" spring="0.5" damp="1" dfric="0.8" sfric="1.2">
<control-input axis="/controls/engines/engine/throttle" control="BRAKE" src0="0" src1="0.1" dst0="1" dst1="0"/>
<!-- <control-input axis="/controls/gear/brake-parking" control="BRAKE"/> not existing in the real ASK21-->
</gear>
<!-- Tail wheel -->
<gear x="-3.60517" y="0" z="0.51004" compression="0.05" damp="0.05" spring="1" dfric="0.8" sfric="1.2" />
<!--right wing skid-->
<gear x="1.25252" y="-8.44562" z="1.2" skid="1" compression="0.10" spring="0.8" dfric="6" sfric="5"/>
<!--lef wing skid-->
<gear x="1.25252" y="8.44562" z="1.2" skid="1" compression="0.10" spring="0.8" dfric="6" sfric="5"/>
<!-- PILOTS -->
<!-- Front -->
<weight x="2.50952" y="0.0" z="0.64991" mass-prop="/sim/weight[0]/weight-lb"/>
<!--Rear-->
<weight x="1.72727" y="0.0" z="0.75498" mass-prop="/sim/weight[1]/weight-lb"/>
<!--Tail ballast to enable spin with two pilots-->
<weight x="-3.5" y="0.0" z="0.8" mass-prop="/sim/weight[2]/weight-lb"/>
<!--Distribute mass towards nose (cockpit weight etc.) and towards the wingtips to increase roll and yaw inertia -->
<ballast x="2" y="-10" z=".5" mass="175"/>
<ballast x="2" y="10" z=".5" mass="175"/>
<!--FOR EASY GROUND HANDLING-->
<!--Assiting gears for ground movement-->
<gear x="0.99095" y="3" z="0.05" compression=".1"
spring="0.8" damp="1.2" sfric="0.8" dfric="0.7" skid="true">
<control-input axis="/controls/gear/assist" control="EXTEND"/>
<control-output control="EXTEND" prop="/gear/gear[6]/position-norm"/>
</gear>
<gear x="0.99095" y="-3" z="0.05" compression=".1"
spring="0.8" damp="1.2" sfric="0.8" dfric="0.7" skid="true">
<control-input axis="/controls/gear/assist" control="EXTEND"/>
<control-output control="EXTEND" prop="/gear/gear[7]/position-norm"/>
</gear>
<!--Pushing/pulling the aircraft around:-->
<!--TURN, this is done by tearing the wings around-->
<thruster x="0.99095" y="8" z="1.3" vx="1" vy="-1" vz="0" thrust="100">
<control-input axis="/controls/flight/rudder2" control="THROTTLE" src0="-1" src1="1" dst0="-1" dst1="1"/>
</thruster>
<thruster x="0.99095" y="-8" z="1.3" vx="-1" vy="1" vz="0" thrust="100">
<control-input axis="/controls/flight/rudder2" control="THROTTLE" src0="-1" src1="1" dst0="-1" dst1="1"/>
</thruster>
<!--Push/pull forward-->
<thruster x="0.99095" y="0" z="0.05" vx="1" vy="0" vz="0" thrust="200">
<control-input axis="/controls/throttle-2" control="THROTTLE"/>
</thruster>
<!--Push/pull backward-->
<thruster x="0.99095" y="0" z="0.05" vx="-1" vy="0" vz="0" thrust="200">
<control-input axis="/controls/throttle-reverse" control="THROTTLE"/>
</thruster>
<!-- hitch -->
<hitch name="winch" x="1.62299" y="0.09" z="0.2048">
<tow length="51" weight-per-meter="0.1" elastic-constant="40000" break-force="10000"/>
<!-- 4.5mm steel wire-->
<winch max-tow-length="1000" min-tow-length="1" initial-tow-length="1000" max-winch-speed="40" power="150" max-force="6000"/>
<control-input axis="/controls/winch/place" control="PLACEWINCH"/>
</hitch>
<hitch name="aerotow" x="3.53" y="0" z="0.23" force-is-calculated-by-other="0">
<tow length="60" weight-per-meter="0.035" elastic-constant="9000" break-force="10000" mp-auto-connect-period="0.0"/>
<winch max-tow-length="1000" min-tow-length="60" initial-tow-length="60"/>
<control-input axis="/controls/aerotow/find-aircraft" control="FINDAITOW"/>
</hitch>
</airplane>