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Wasmer Consulting - BaseOps - User's Guide - Editing Flight Profiles


BaseOps User's Guide, Chapter 18: Editing Flight Profiles

A flight profile describes the operational characteristics (height, power setting, airspeed, etc.) of an aircraft as it flies along a flight track.

In BaseOps, flight profiles are defined as a sequence of one or more flight profile segments: sections of a flight track where the operational characteristics are either constant or vary linearly. Each segment begins with a profile point: a location where the operational characteristics are specified. The location of profile points along a flight track is specified by the linear track distance, measured from the start of the track.

Flight profiles are used by the NMap, AAM, and RNM noise models. Unless one of these models is selected, the parts of the BaseOps user interface dealing with flight profiles will be hidden. See Noise Models.

To work with flight profiles, choose Flight Profiles from the object type selector dropdown list. Flight profiles can be added, duplicated, and deleted as described in Working with the List Pane.

To edit a flight profile, first select it in the object list, then edit it in the text pane. Flight profiles have numerous properties. These are listed below, grouped for easy reference.

Profile Name and Notes

Operation Counts

The operation counts specify the average number of times per calendar day that the flight profile is flown during the day, evening, and night. Note that day, evening, and night are precisely defined periods: see Operations. The evening period will be displayed only if the number of daily periods is set to three for this BaseOps case.

Flight Track Information

Aircraft Information

Runup Information

Some aircraft perform a static runup of their engines before beginning a takeoff roll. The runup is the duration of this static runup.

The runup is displayed only for certain aircraft when operating on departure and interfacility flight tracks. For interfacility tracks, the runup is not displayed if the initial airspeed is greater than zero. This allows interfacility tracks to be used in a manner similar to INM's overflight tracks.

You can change the units used to specify times: see Setting the Case's Physical Units.

Note:

The aircraft's power setting when conducting the static runup is specified in the first row of the flight profile segments table.

Segments

A flight profile's segments are specified using a table, where each table row represents the profile point of a segment. The following table columns are defined. Note that only those columns applicable to the flight profile's aircraft will be displayed.

The triangle icon indicates the selected flight profile segment. To select another segment, either click somewhere on that segment's row, or navigate to that segment using the Tab key.

To add a new segment, either press the Add Segment button , or press Ctrl + A. The new segment will be added directly below the selected segment. Alternatively, using the Add mouse tool , click on the location along the flight track where the new profile point should be added. See The Add Mouse Tool for more information.

To delete the selected segment, either press the Delete Segment button , or press Ctrl + Del.

To move the selected segment up or down in the table, press the Move Up and Move Down buttons and , or press Ctrl + U and Ctrl + D.

When you add a new segment, BaseOps simply duplicates the selected segment. If desired, you can use the quick-add feature, which lets you efficiently add a segment while simultaneously specifying its properties. To add a segment, type a quick-add command into the text box, then press the Add Segment button or the Enter key.

The quick-add commands are somewhat cryptic, but once learned, they allow you to add segments very quickly. Frequent users will find it worthwhile spending a few minutes learning the quick-add commands. To display a list of the quick-add commands that you can use, either press the Quick-Add Hints button , or press Ctrl + H.

Tip:

Using the Select and Edit map tool, you can graphically edit a flight profile's segments. See The Select and Edit Mouse Tool for more information.

Tip:

Press the Show Profile Height Graph button to view a graphical representation of the profile's height as a function of track distance.

The Standard Profile Library

BaseOps ships with a library of standard flight profiles for many aircraft. These default profiles are useful if you are unable to obtain the actual flight profile flown by an aircraft at the site you are modeling.

To load a standard profile from the library, press the Load Standard Profile button. A dialog box appears, listing the available standard profiles that apply to your profile's aircraft, engine, and flight track type.

Select the desired profile, then press OK. The following properties in your flight profile will be updated to match the library profile.

If desired, you can save your own flight profiles to the standard profile library. To save the current profile, press the Save as Standard Profile button. A dialog box appears, asking for the name that this profile will be known by in the library.

Tip:

Your user library of standard flight profiles is stored in the file Standard Flight Profile Library - User.baseops, which is located in the BaseOps home directory. This is a regular BaseOps case file. If desired, you can load this case into BaseOps and edit it. If you choose to do so, note these points.

The BaseOps library (as opposed to the user library) of standard flight profiles is stored in the file Standard Flight Profile Library - BaseOps.baseops. Only BaseOps' developers should edit this file, as it will be overwritten whenever a new version of BaseOps is installed.


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