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Flight Progress


All users have access to the Progress Screen to view the progress of a flight. A user must have the Flight Follower User role to modify data on the Progress screen.

The Progress screen can be accessed through the Progress button on the top navigation bar.

The Progress screen lets you view and modify characteristics of a flight. You can only view the progress of computed flights.


The Progress screen shows the flight's progress as a list of all the waypoints on the computed flight. The list includes the Flight Key at the top and the plan and actual values for Time overhead, Fuel on board, Flight level and wind component for each waypoint on the flight.

Before the flight departs, the planned and projected values are the same. After departure, as actual values are filled in, the system refines projected data using actual data, by applying to the projected values, the difference between planned and actual values. Projected values exist only for the time overhead and the fuel on board. For a waypoint either actual or projected values are shown, but not both at the same time. The projected values are shown only where actual values are not entered. Once an actual value is filled in, the corresponding projected one is hidden. Because of this, there is just one column (Actual / Projected) for these two values.

To highlight the fact that a value is either actual or projected, the actual values are shown in regular font, while the projected ones are shown in gray-italics font.

Projected values will not be provided for off-route positions.



The Refresh button reloads updates the data for each waypoint.

The Add button allows users with the Flight Follower User role to add waypoints to the flight. 


Inputs

There are several data sources that feed into the flight progress:

  • Dispatchers that have the Flight Follower User role granted.
  • ACARS position reports
  • IATA MVT messages

Values are updated when the Progress screen is first loaded or when a user selects the Refresh button.

The last incoming value overrides any previous values if multiple sources exist for the same position on the list.

Any of the inputs mentioned above, if they refer to positions on the applied route, determine the projected values of subsequent positions to be recalculated. See the Projected values update rules below for more information.

Projected values update rules

When an actual value is provided for a position on the applied route-off route position are not included-the projected values for all subsequent positions on the route are updated.

If Actual values are provided for Time overhead and/or Fuel on board then only the values for the subsequent positions are updated. Providing actual values for the flight level and/or wind component will not impact any other value, neither for the position being updated, nor for other positions.

Updated component values for each position are calculated as the planned value, and the difference between the planned value and the actual value is displayed in the list. Positions do not need to be updated in chronological order, values will stop updating at the first position that provides an actual value for the component being updated.

Adding and/or updating actual values for off-route positions, regardless of what the values are, will not impact any other value.

The positions on the applied route will always be kept in the same order. The off-route positions are inserted into the list based on their time overhead value compared to the projected/actual values of other positions already on the list. Because of that, there is the potential that off-route positions might be rearranged in situations where the time overhead values for the positions on the applied route are updated. Updating the time overhead value on an off-route position might have the same effect.

Progress Display

Progress is determined by comparing  the Plan/Actual  Time overhead value with the current time. If the Time overhead is less than or equal to the current time, the waypoint is considered to have been passed. When a waypoint has been passed, the row in the progress list is highlighted for the purpose of giving the user a sense of progress. The table rows corresponding to waypoints, which the airplane has already passed, are highlighted a darker shade.

Progress will not be automatically updated. A user must select the Refresh button or enter updated values.

Handling in-flight revisions

After an in-flight revision is computed for the flight being followed, the progress list will show:

From the original route: only the positions for which the user had entered actual values.

The positions of the in-flight route to the destination.

OUT and OFF information will still be included, with values taken from the original route. If actual values are not available, projected ones will be displayed for them.

ON and IN information will reflect the in-flight revision values.

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