Updated and corrected parameters, and made the pilot/copilot weights
settable with the properties /yasim/j3cub/pilot-lb and /yasim/j3cub/copilot-lb.
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parent
626d78132d
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1 changed files with 16 additions and 15 deletions
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@ -26,10 +26,10 @@ since it is what the weight-and-balance site above uses.
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-->
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-->
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<!--
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<!--
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680lb empty weight less 200lb for engine (wild guess)
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680lb empty weight.
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+ 340 for pilot and passenger
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-->
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-->
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<airplane mass="820">
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<!-- FIXME: this includes the engine; is that correct? -->
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<airplane mass="680">
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<!-- Approach configuration (actually touchdown, I think) -->
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<!-- Approach configuration (actually touchdown, I think) -->
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<approach speed="25" aoa="16">
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<approach speed="25" aoa="16">
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@ -38,7 +38,7 @@ since it is what the weight-and-balance site above uses.
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</approach>
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</approach>
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<!-- Cruise configuration -->
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<!-- Cruise configuration -->
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<cruise speed="67" alt="8000">
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<cruise speed="67" alt="0">
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<control-setting axis="/controls/throttle[0]" value="1.0"/>
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<control-setting axis="/controls/throttle[0]" value="1.0"/>
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<control-setting axis="/controls/mixture[0]" value="1.0"/>
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<control-setting axis="/controls/mixture[0]" value="1.0"/>
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</cruise>
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</cruise>
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@ -46,10 +46,8 @@ since it is what the weight-and-balance site above uses.
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<!-- pilot's eyepoint -->
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<!-- pilot's eyepoint -->
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<cockpit x="-0.23" y="0" z="-0.30"/>
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<cockpit x="-0.23" y="0" z="-0.30"/>
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<!-- FIXME: midpoint (I don't understand it) -->
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<!-- FIXME: taper (I just left in the C172 value) -->
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<fuselage ax="1.37" ay="0" az="-0.71" bx="-4.81" by="0" bz="-0.65"
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<fuselage ax="1.37" ay="0" az="-0.71" bx="-4.81" by="0" bz="-0.65"
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width="0.71" taper="0.16" midpoint="0.83"/>
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width="0.71" taper="0.16" midpoint="0.17"/>
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<!--
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<!--
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I treat it as a perfectly rectangular wing for now. Note that
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I treat it as a perfectly rectangular wing for now. Note that
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@ -60,8 +58,7 @@ since it is what the weight-and-balance site above uses.
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Note that the J3 Cub has no flaps. With a stall speed of 25kt, who
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Note that the J3 Cub has no flaps. With a stall speed of 25kt, who
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needs them? From what I've read, the ailerons add lots of drag.
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needs them? From what I've read, the ailerons add lots of drag.
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-->
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-->
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<!-- FIXME: camber (used the C172 value) -->
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<wing x="-0.80" y="0.42" z="0.0" taper="1.0"
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<wing x="-0.80" y="0.42" z="0.0" taper="0.0"
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length="4.87" chord="1.60" sweep="0" dihedral="5" camber="0.1">
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length="4.87" chord="1.60" sweep="0" dihedral="5" camber="0.1">
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<stall aoa="16" width="6" peak="1.5"/>
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<stall aoa="16" width="6" peak="1.5"/>
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<flap0 start=".31" end="0.85" lift="1.5" drag="1.4"/>
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<flap0 start=".31" end="0.85" lift="1.5" drag="1.4"/>
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@ -100,9 +97,9 @@ since it is what the weight-and-balance site above uses.
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<propeller radius="0.95"
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<propeller radius="0.95"
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cruise-speed="60" cruise-rpm="2300"
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cruise-speed="60" cruise-rpm="2300"
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cruise-alt="8000" cruise-power="48"
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cruise-alt="8000" cruise-power="48"
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takeoff-power="60" takeoff-rpm="2300"
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takeoff-power="55" takeoff-rpm="2300"
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eng-power="65" eng-rpm="2700"
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eng-power="65" eng-rpm="2700"
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x="0.71" y="0" z="-0.65" mass="200" moment="8">
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x="0.71" y="0" z="-0.65" mass="150" moment="8">
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<actionpt x="1.31" y="0" z="-0.65"/>
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<actionpt x="1.31" y="0" z="-0.65"/>
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<control-input axis="/controls/throttle[0]" control="THROTTLE"/>
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<control-input axis="/controls/throttle[0]" control="THROTTLE"/>
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<control-input axis="/controls/starter[0]" control="STARTER"/>
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<control-input axis="/controls/starter[0]" control="STARTER"/>
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@ -115,12 +112,12 @@ since it is what the weight-and-balance site above uses.
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<control-input axis="/controls/tailwheel-castering" control="CASTERING"/>
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<control-input axis="/controls/tailwheel-castering" control="CASTERING"/>
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</gear>
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</gear>
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<gear x="0" y="0.89" z="-1.96" compression=".3"> <!-- left main -->
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<gear x="0" y="0.95" z="-1.96" compression=".1"> <!-- left main -->
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<control-input axis="/controls/brakes[0]" control="BRAKE" split="true"/>
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<control-input axis="/controls/brakes[0]" control="BRAKE" split="true"/>
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<control-input axis="/controls/parking-brake" control="BRAKE" split="true"/>
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<control-input axis="/controls/parking-brake" control="BRAKE" split="true"/>
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</gear>
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</gear>
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<gear x="0" y="-0.89" z="-1.96" compression=".3"> <!-- right main -->
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<gear x="0" y="-0.95" z="-1.96" compression=".1"> <!-- right main -->
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<control-input axis="/controls/brakes[1]" control="BRAKE" split="true"/>
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<control-input axis="/controls/brakes[1]" control="BRAKE" split="true"/>
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<control-input axis="/controls/parking-brake" control="BRAKE" split="true"/>
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<control-input axis="/controls/parking-brake" control="BRAKE" split="true"/>
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</gear>
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</gear>
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@ -132,7 +129,11 @@ since it is what the weight-and-balance site above uses.
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Note the tandem seating; the x values (arms) come from the
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Note the tandem seating; the x values (arms) come from the
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weight-and-balance page cited at the start.
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weight-and-balance page cited at the start.
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-->
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-->
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<ballast x="-0.23" y="0" z="-0.70" mass="170"/> <!-- pilot -->
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<ballast x="-0.91" y="0" z="-0.70" mass="170"/> <!-- passenger -->
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<!-- pilot -->
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<weight x="-0.23" y="0" z="-0.70" mass-prop="/yasim/j3cub/pilot-lb"/>
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<!-- passenger -->
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<weight x="-0.91" y="0" z="-0.70" mass-prop="/yasim/j3cub/passenger-lb"/>
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</airplane>
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</airplane>
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