Stack commands¶

Select FLYBY, FLYOVER, or FLYTURN through the ADDWPT mode form.

Clear a turn parameter through the ADDWPT mode form.

Set a fly-turn radius through ADDWPT.

Set fly-turn CAS through ADDWPT.

Set a fly-turn heading rate through ADDWPT, in degrees per second.

Add a takeoff waypoint from an explicit runway.

Add a takeoff waypoint using a runway already in the route or current position.

Insert a route waypoint before an existing waypoint.

Insert a route waypoint after an existing waypoint.

Append a route waypoint with optional altitude and airspeed constraints.

Show the current waypoint insertion/fly-turn mode.

Select FLYBY, FLYOVER, or FLYTURN waypoint mode.

Set the default fly-turn radius.

Set the default fly-turn CAS.

Set the default fly-turn heading rate in degrees per second.

Clear a route turn radius, CAS, or heading-rate default.

Insert a waypoint after an existing route waypoint.

Select the autopilot altitude, optionally with a vertical speed.

Selecting an altitude disengages VNAV for this aircraft. When no vertical speed is given and the currently selected vertical speed opposes the required climb/descent direction, it is reset so the default vertical speed is used.

Enable conflict detection.

Enable or disable conflict detection.

Show all constraints and stacked commands at a route waypoint.

Show the altitude constraint at a route waypoint.

Show the airspeed constraint at a route waypoint.

Show commands stacked at a route waypoint.

Set the altitude constraint at a route waypoint.

Set the airspeed constraint at a route waypoint.

Set or clear the altitude/airspeed constraint pair at a route waypoint.

Clear a waypoint altitude constraint.

Clear a waypoint airspeed constraint.

Clear waypoint altitude and airspeed constraints.

Clear all constraints and stacked commands at a waypoint.

Store a command to execute when a route waypoint is passed.

See also:

• BlueSky commit that introduced AT ... DO/STACK
• Metropolis 2
• scenario/M2AP3.scn and scenario/LNAV_VNAV/LNAV-VNAV-TwoRoutesFlights.scn upstream

Schedule a command for when an aircraft crosses an altitude.

Schedule a command for crossing a distance.

Schedule a command for crossing an explicit CAS in m/s or Mach target.

Show the bank-angle limit for an aircraft or selection.

Set the bank-angle limit for an aircraft or selection.

Insert a waypoint before an existing route waypoint.

Define a box-shaped area from two opposite corners.

Define a circular area.

Clear the list of commands issued for newly created aircraft.

Remove all command lines previously added with CRECMD.

Create an aircraft.

Show commands issued for every newly created aircraft.

Show commands issued for every newly created aircraft.

Add a command to issue for every newly created aircraft.

Create an aircraft in conflict with a target aircraft.

The intruder position, track and airspeed are computed such that, relative to the target aircraft, separation is lost after the given time with the given distance at the closest point of approach. The protected-zone radius and height from the config (asas_pzr, asas_pzh) are taken into account. Omitting the vertical offset creates a level conflict; omitted vertical LoS time defaults to the horizontal LoS time, and omitted airspeed uses the ownship ground speed.

Report the current simulation UTC timestamp.

Set the calendar date at midnight UTC.

Set the calendar date and UTC time.

Inspect a scenario-specific waypoint or report that its name is available.

Delete a scenario-specific waypoint.

Define a scenario-specific waypoint from a position.

Delete a waypoint from the DEFWPT name,position,DEL form.

Define a scenario-specific waypoint with an explicit waypoint type.

Delete an element (aircraft, wind field, area shape, or group).

DEL = "DEL" ( "WIND" | area-name | group-name
              | selection { selection } ) ;
selection = aircraft-id | group-name | "*" | "ALL" ;

A sole stored group deletes its member aircraft and releases the group, matching BlueSky. In a multi-selection form a group expands to aircraft but the group definition remains.

Delay a stack command by a time interval.

Like schedule, but the given time is relative to the current simulation time.

Delete the route when a single aircraft exists.

Delete an aircraft route.

Delete the complete route using BlueSky's DELWPT callsign,* form.

Delete a waypoint from an aircraft route.

Show the destination of an aircraft.

Set the destination with an optional CAS in m/s or Mach constraint.

Fly an aircraft directly to a waypoint in its route.

Report the default conflict-detection lookahead.

Set the default conflict-detection lookahead.

Set conflict-detection lookahead for selected aircraft.

Set the simulation speed multiplier.

The loop targets a simulation step every simdt / speed wall-clock seconds, so a larger multiplier makes simulated time advance faster relative to the wall clock.

Report the default post-resolution no-look interval.

Set the default post-resolution no-look interval.

Set the post-resolution no-look interval for selected aircraft.

Print a console message.

The message goes to stdout with prefix, and to every callback registered with subscribe. It also overwrites output_buffer, so an earlier message read_output_buffer has not drained yet is lost.

Report wind at an aviation position and optional altitude.

List all stored traffic groups.

List the aircraft in a traffic group.

Create or extend a traffic group from selections or an area.

Select the autopilot heading.

When a wind field is defined and the aircraft is airborne (above 50 ft), the commanded track is computed from the given heading and the local wind; otherwise track equals heading. Selecting a heading disengages LNAV for this aircraft.

Show help for a command.

Set simulation state to HOLD.

Pauses the advance of simulation time and triggers the plugin hold hooks. Stack commands are still processed while holding, so the simulation can be resumed with the OP command.

Load a scenario file.

Resets the simulation, reads the scenario file relative to the project root, and buffers its timestamped commands for execution when the simulation time passes their timestamps.

Draw a line between two positions.

Show an aircraft route in the console.

Show LNAV state for an aircraft or selection.

Enable or disable LNAV for an aircraft or selection.

List registered variable parents.

Show information about a simulation variable.

Show magnetic variation at an aviation position.

Create multiple aircraft at random positions in a lat/lon box.

Callsigns are generated randomly (two letters plus a sequence number). Heading is drawn uniformly from 1-360 deg; when not given, altitude is drawn from 2000-39000 ft and calibrated airspeed from 250-450 kts. The default area is the North Sea region.

Instantaneously move an aircraft to a new position/state.

Optional state values are left unchanged when omitted. Setting a vertical speed disengages VNAV.

Report trajectory-noise state.

Enable or disable trajectory and surveillance noise.

Show aircraft that nobody will avoid.

Toggle the nobody-avoids flag for selected aircraft.

Set simulation state to OPERATE.

Resumes (or starts) advancing simulation time. Also re-anchors the system time reference syst to the current wall-clock time plus one simulation step.

Show the origin of an aircraft.

Set the origin of an aircraft.

Report the current performance state of an aircraft.

Includes flight phase, thrust, drag, fuel flow, speed and vertical-speed envelopes, and ceiling in aviation units (kN, kg/s, kts, fpm, ft).

List loaded and available plugins.

List loaded and available plugins.

Load a plugin by name.

Load a plugin by name.

Define a polygon from position vertices.

Define a polygon between top and bottom altitudes.

Draw a multi-segment line through position vertices.

Show information on an aircraft, airport, waypoint or navaid.

Show priority-rule support and state.

Enable or disable priority rules using a selected rule code.

Stop the simulation.

Sets the simulation state to END and asks the runner to exit its loop. If the runner was configured with minisky.Runner.prevent_shutdown, the loop keeps running and only the state changes.

Report realtime mode.

Enable or disable realtime mode.

Reset all simulation objects (stack RESET command).

Returns the simulation to its initial state: simulation time back to 0 s, timestep back to 1 s, the simulated UTC clock to today at 00:00:00, and all traffic, stack, navigation database, area filters, console output, replaceable entities (autopilot, performance models, etc.) and plugin timers/hooks reset to their defaults.

Show the current and available conflict-resolution methods.

Disable conflict resolution.

Select and enable MVP conflict resolution.

Show aircraft that perform no resolution manoeuvres.

Toggle resolution manoeuvres for selected aircraft.

Show the horizontal resolution factor.

Set the horizontal resolution factor.

Show the vertical resolution factor.

Set the vertical resolution factor.

Show horizontal resolution-method settings.

Configure horizontal resolution degrees of freedom.

Show vertical resolution-method settings.

Configure vertical resolution degrees of freedom.

Show the absolute vertical resolution zone.

Set the absolute vertical resolution-zone height.

Show the absolute horizontal resolution zone.

Set the absolute horizontal resolution-zone radius.

Set a required time of arrival at a route waypoint.

Set the scenario name for the current simulation.

Schedule a stack command at a specific simulation time.

The command is inserted into the scenario buffer, keeping the buffer sorted by execution time.

Set the random seed for this simulation (stack SEED command).

Seeds this runtime's Python and NumPy generators so stochastic scenario elements are reproducible without affecting other runtimes.

List replaceable classes.

Show the current and available implementations for a replaceable.

Select an implementation for a replaceable class.

Select CAS in m/s or Mach explicitly.

Show Top-of-Climb state for an aircraft or selection.

Enable or disable Top-of-Climb logic.

Show Top-of-Descent state for an aircraft or selection.

Enable or disable Top-of-Descent logic.

Report autothrottle state and fixed throttle when applicable.

Enable autothrottle.

Disable autothrottle and select idle thrust.

Disable autothrottle and set a fixed throttle fraction.

Report the current simulation UTC timestamp.

Set simulation UTC to the start of the current UTC day.

Set simulation UTC from the current local wall clock.

Set simulation UTC from the current UTC wall clock.

Set only the time-of-day, preserving BlueSky's 1900-01-01 date behavior.

Remove several selections from a stored group.

Show VNAV state for an aircraft or selection.

Enable or disable VNAV for an aircraft or selection.

Select the autopilot vertical speed.

Setting a vertical speed disengages VNAV for this aircraft.

Clear wind defined at a position.

Define altitude-independent wind.

Define constant wind with an omitted altitude.

Define altitude-dependent wind vectors.

Report the default protected-zone half-height.

Set the default protected-zone half-height.

Set the protected-zone half-height for selected aircraft.

Report the default protected-zone radius.

Set the default protected-zone radius.

Set the protected-zone radius for selected aircraft.

Show the number of passengers on an aircraft.

Set the number of passengers on an aircraft.

Report the battery state of charge, power draw and endurance.

Hold position, optionally for a fixed time at a given altitude.

Suspends LNAV/VNAV, commands zero ground speed, and holds the given altitude (the current one when omitted) — with an altitude the aircraft moves there vertically, at a fixed position. With a duration, the route resumes once position and altitude have been held that long; without one, the aircraft hovers until LNAV is re-engaged. Repeating the command while hovering updates the hold time and altitude, and a plain ALT command changes the hover altitude as well.

Report whether multicopter behavior is enabled for an aircraft.

Enable or disable multicopter behavior for an aircraft.

Command the body heading (nose direction) of a multicopter.

The velocity vector keeps following the track command from the FMS or conflict resolution, so this rotates the aircraft in place.

Report the maximum yaw rate of a multicopter.

Set the maximum yaw rate of a multicopter.

Show the status of the tangram Redis bridge.