The Condor PDA provides very good basic navigation and task management support (although it does not support TAT/AAT tasks natively). There are four basic screens, but two of them (Screen 1 and Screen 4) also have sub-screens, bringing the total of distinct screens to six.
Screen 1 – Moving Map: The moving map screen is accessed by tapping the numeric ’1′ key at the top of the keyboard (not the number pad). The screen orientation is always ‘north-up’ and there isn’t any way to select another orientation. The keyboard ‘PgUp’ and ‘PgDn’ keys increase or decrease the displayed area, respectively. There is a small scale label in the upper left-hand corner of this screen, and the number displayed there is the horizontal distance from one side of the screen to the other. The ’1′ key also toggles the background terrain display off and on, useful when approaching a turnpoint in a visually cluttered area on the map.
Screen 2 – Bearing and Distance: This screen is accessed by tapping the numeric ’2′ key at the top of the keyboard, and shows the bearing and distance to the active turnpoint. This is the only screen that shows the name of the active turnpoint, and this is occasionally useful.
Screen 3 – Final Glide Situation Display: Accessed by tapping the numeric ’3′ key at the top of the keyboard. Shows the glide situation to any turnpoint, not just the active one. The ‘PgUp’ and ‘PgDn’ keys move the display sequentially through all the turnpoints, showing the final glide situation for each. For turnpoints beyond the currently active one, a ‘+N’ label appears in the upper left-hand quadrant of the cross-hairs display. N = 1 for the turnpoint just beyond the current one, N = 2 for the one beyond that, etc. If the number is shown in RED, then the turnpoint under consideration is the finish point.
Screen 3 is divided into two sections as shown below; the top section displays a cross-hair graticule, and a red ball or ‘dot’, while the bottom section provides numeric information.
In the upper section, the left/right position of the dot with respect to the vertical centerline depicts the horizontal offset from the correct bearing to the next (active) turnpoint. Turn toward the ball to center it. The vertical position with respect to the horizontal centerline depicts the height reserve/deficit with respect to the turnpoint under consideration (no number for the currently actiive one, ‘+1′ for the one beyond that, etc). If the ball is below the line, then the glider will reach the turnpoint before reaching the ground. if the ball is above the turnpoint, the glider will reach the ground before reaching the turnpoint. Note that while the horizontal position of the ball always depicts the situation with respect to the active turnpoint, the vertical position depicts the situation with respect to the turnpoint under consideration, which doesn’t have to be the active one.
In the lower section numeric readouts of the final glide situation are provided:
- MC = Current McReady setting
- DIST = Distance to the turnpoint under consideration, assuming all intervening turnpoints are rounded in order.
- DH = Current height above the turnpoint under consideration, without taking glide height losses into account.
- DDH = Calculated height above the turnpoint under consideration, taking glide height losses at the current McReady setting into account
- TTG = Time to Go in hours and minutes, at the current ground speed (NOT the average speed!)
- ETA = Clock time of arrival at the finish, at the current ground speed (NOT the average speed!)
Screen 4 shows either the current wind, shown in compass rose format with a numeric readout at the bottom, or the ‘bread crumb’ screen which depicts the glider’s lift/sink history for the last few minutes. The ‘bread crumb’ screen is especially helpful for thermal centering.