Seeking example Nasal script

[Chris Nogradi]

Hello, I am looking for some simple Nasal script example to automate a takeoff and flyaround. I have seen the concord (posted by Ampere) example but it seems more complex than what I need (note I know very little about planes). Does anyone have an example using the autopilot similar to a JSBSim example script?

Thanks,

Chris



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[Jon S. Berndt]

Post by Chris Nogradi
Hello, I am looking for some simple Nasal script example to
automate a takeoff and flyaround. I have seen the concord
(posted by Ampere) example but it seems more complex than what I
need (note I know very little about planes). Does anyone have an
example using the autopilot similar to a JSBSim example script?
Chris

As an example of what Chris is referring to when he writes "similar to a
JSBSim example script", here's an example of that (since many of you
probably aren't familiar with the JSBSim scripting feature:

<event name="engine start">
<description>Start the engine, and print a notification
message.</description>
<condition>
sim-time-sec >= 0.25
</condition>
<set name="fcs/throttle-cmd-norm" value="1.0" action="FG_RAMP" tc
="0.5"/>
<set name="fcs/mixture-cmd-norm" value="0.87" action="FG_RAMP" tc
="0.5"/>
<set name="propulsion/magneto_cmd" value="3"/>
<set name="propulsion/starter_cmd" value="1"/>
<notify/>
</event>

<event name="Set heading hold">
<description>Set Heading when 5 ft AGL is reached</description>
<condition>
position/h-agl-ft >= 5
</condition>
<set name="ap/heading_setpoint" value="200"/>
<set name="ap/attitude_hold" value="0"/>
<set name="ap/heading_hold" value="1"/>
<notify/>
</event>

Jon


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[Markus Zojer]

Post by Jon S. Berndt

Post by Chris Nogradi
Hello, I am looking for some simple Nasal script example to
automate a takeoff and flyaround. I have seen the concord
(posted by Ampere) example but it seems more complex than what I
need (note I know very little about planes). Does anyone have an
example using the autopilot similar to a JSBSim example script?
Chris

As an example of what Chris is referring to when he writes "similar to a
JSBSim example script", here's an example of that (since many of you
<event name="engine start">
<description>Start the engine, and print a notification
message.</description>
<condition>
sim-time-sec >= 0.25
</condition>
<set name="fcs/throttle-cmd-norm" value="1.0" action="FG_RAMP" tc
="0.5"/>
<set name="fcs/mixture-cmd-norm" value="0.87" action="FG_RAMP" tc
="0.5"/>
<set name="propulsion/magneto_cmd" value="3"/>
<set name="propulsion/starter_cmd" value="1"/>
<notify/>
</event>
<event name="Set heading hold">
<description>Set Heading when 5 ft AGL is reached</description>
<condition>
position/h-agl-ft >= 5
</condition>
<set name="ap/heading_setpoint" value="200"/>
<set name="ap/attitude_hold" value="0"/>
<set name="ap/heading_hold" value="1"/>
<notify/>
</event>
Jon
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The B-52 uses a nasal script for autotakeoff and landing, take a look at it.
g,
markus

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[leee]

Post by Markus Zojer

Post by Jon S. Berndt

Post by Chris Nogradi
Hello, I am looking for some simple Nasal script example to
automate a takeoff and flyaround. I have seen the concord
(posted by Ampere) example but it seems more complex than what I
need (note I know very little about planes). Does anyone have an
example using the autopilot similar to a JSBSim example script?
Chris

As an example of what Chris is referring to when he writes "similar to a
JSBSim example script", here's an example of that (since many of you
<event name="engine start">
<description>Start the engine, and print a notification
message.</description>
<condition>
sim-time-sec >= 0.25
</condition>
<set name="fcs/throttle-cmd-norm" value="1.0" action="FG_RAMP" tc
="0.5"/>
<set name="fcs/mixture-cmd-norm" value="0.87" action="FG_RAMP" tc
="0.5"/>
<set name="propulsion/magneto_cmd" value="3"/>
<set name="propulsion/starter_cmd" value="1"/>
<notify/>
</event>
<event name="Set heading hold">
<description>Set Heading when 5 ft AGL is reached</description>
<condition>
position/h-agl-ft >= 5
</condition>
<set name="ap/heading_setpoint" value="200"/>
<set name="ap/attitude_hold" value="0"/>
<set name="ap/heading_hold" value="1"/>
<notify/>
</event>
Jon
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The B-52 uses a nasal script for autotakeoff and landing, take a look at
it. g,
markus

The B-52F probably isn't the best example as it doesn't go through a 'rotate'
phase. The A-10 might be a better example but I think it still needs
references to altitude-agl-ft changed to gear-agl-ft for it to work. I think
that the 2d panel that contains the A/P instrument may also still need to be
fixed following the 'clipping' patch but the script should make more sense.

LeeE


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