AT

AT: At waypoint add a alt/speed VNAV constraint or add a command to the stack to be issued when passing

Edit, delete or show speed or altitude constraints at a waypoint in the route. It can also be used to make a list of command lines to be issued when the waypoint in the flight plan is passed by the aircraft before the AT.

Usage:

acid AT wpname [DEL] SPD/ALT/DO/STACK [spd/alt/command]

Arguments 1: Show spd/alt constraints at a waypoint

Name	Type	Required	Description
acid	txt	Yes	Aircraft id
wpname	txt	Yes	Waypoint name

Arguments 2: Edit spd/alt constraints at a waypoint

Name	Type	Required	Description
acid	txt	Yes	Aircraft id
wpname	txt	Yes	Waypoint name
contraint type	SPD/ALT	Yes	Edit speed, altitude or both contraints
spd/alt	float	Yes	Aircraft Speed, altitude or both of them

Arguments 3: Delete spd/alt constraints & Stack commands at a waypoint

Name	Type	Required	Description
acid	txt	Yes	Aircraft id
wpname	txt	Yes	Waypoint name
DEL	DEL	Yes	Delete constraint
contraint type	SPD/ALT/STACK	Yes	Delete speed, altitude or both contraints

Arguments 4: Add command lines to the stack at this waypoint, these will be executed when passing this waypoint

Name	Type	Required	Description
acid	txt	Yes	Aircraft id
wpname	txt	Yes	Waypoint name
DO/STACK	DO/STACK	Yes	Indicate a command will be stacked
cmdline	txt	Yes	The command line, if the first argument type is an a/c id and this is not given, then the ownship (acid) will be inserted

Examples: KL204 AT LOPIK ALT FL100 => at this waypoint the altitude will be FL100 (depending on other constraints, it will descend as late as possible and climb as soon as possible along the route)

KL204 AT LOPIK SPD 250 =>at this waypoint will set the speed to 250 kts

KL204 AT LOPIK FL100/250 => does both the above in one go

KL204 AT LOPIK DO ECHO HELLO WORLD => "ECHO HELLO WORLD" will be issued when this waypoint is passed by KL204
KL204 AT LOPIK DO HDG 270 => will issue "KL204 HDG 270:" when KL204 passes this waypoint
KL204 AT LOPIK DO KLM1705 DIRECT SPY => will issue "KLM1705 DIRECT SPY" when KL204 passes this waypoint (offers lots of interactions!)
KL204 AT LOPIK STACK ECHO HELLO WORLD => "ECHO HELLO WORLD" will be issued when this waypoint is passed by KL204 (so same as first)
KL204 AT LOPIK => shows everything entered at this waypoint\

See also: ADDWPT, ORIG, DEST, LNAV, VNAV for route editing features \See also: ATALT, ATSPD, ATDIST and DELAY for other conditional commands to be issued than AT ... DO/STACK

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