)
or select 'Profile' from the 'Jump' menu to open another window
which graphically displays height and speed over time for the
currently selected jump. This window may be left opened while
browsing through your jumps and will be updated on the fly.Click the 'Jump Profile' toolbar button ()
or select 'Profile' from the 'Jump' menu to open another window
which graphically displays height and speed over time for the
currently selected jump. This window may be left opened while
browsing through your jumps and will be updated on the fly.
To zoom into the chart, pull up a rectangle to the lower right with the left mouse button pressed. Zoom out by pulling the rectangle up to the upper left. Use the mouse wheel or PAGE UP/PAGE DOWN to scroll from one jump to the other.
Freefall speeds can be displayed as TAS (True Airspeed) or SLAS (Sea Level Adjusted Airspeed). While TAS displays the speeds as they were derived from the measured data, SLAS recalculates the speeds based on MSL (Mean Sea Level) so speeds from different heights can be better compared. Please see Gary Peck's excellent article 'Skydiving Fall Rate' for details.
When you right-click into the chart a popup-menu allows you to save and print the chart, to set several chart specific settings and to add annotations to the chart. Letting the mouse cursor rest over one of the curves will display the value at this point.
To evalute the data displayed on the chart, select the 'Show Cursor' check box to display the 'Jump Profile Cursor' window.Depending on the data source, the chart shows more or less information for the jump: For 'regular' loggers, the chart shows height and fall rate vs. time, while for GPS, the chart shows horizontal distance and speed over ground, combined 3D speed, pitch (glide ratio) as well as course and turn rate. These curves can be switched on and off via the check boxes to the right of the chart.
GPS profiles have the 'Show 3D-Map' button enabled. Clicking this button will export the current GPS track to Google Earth (Google Earth combines satellite imagery and elevation data for the whole planet creating a virtual globe inside your PC. High resolution data is available for most populated places. Google Earth needs to be already installed on your computer) where it can then be viewed interactively in 3D using all the features of Google Earth: Tilting, panning, zooming, even flying along your flight path!
