Presentation on theme: "The OZ Display is used in conjunction with the nose camera view provided on the STE simulation. OZ integrates flight information provided by the Predator."— Presentation transcript:
The OZ Display is used in conjunction with the nose camera view provided on the STE simulation. OZ integrates flight information provided by the Predator to produce an integrated view of the status and performance of the aircraft and environment with the specifics goals of the flight task. The figure at right shows the two main components of the OZ Display: the Starfield and the Aircraft Metaphor. The Starfield is the background of the display and provides a scale by which altitude, heading, and attitude can be measured using the elements of the Aircraft metaphor. The integrated display is shown below. Columns are Headings Columns are Headings Rows are altitudes Rows are altitudes Horizon overlays current altitude Pitch Ladder Overlays current heading Pitch Ladder Overlays current heading
Airspeed Airspeed of the aircraft is shown by the location of the speed strut with respect to the speed bugs (the Diamond shapes), straight wings, and bent wings. The stall speed is indicated by the inboard end of the straight and bent wings (see top right). For those of you for which “stall” is a new term, the essential concept we wish to convey here is that, when the aircraft “stalls”, the wing(s) no longer are producing lift to keep the aircraft flying – obviously a dangerous situation. Stalls mostly occur at slower airspeeds. OZ indicates that the aircraft is approaching stall when the speed struts move towards the center of the display and the inboard tips of the bent and straight wings. As speed increases, the speed strut moves outboard. The speed bug is used to indicate a target airspeed. Lining the speed strut up with the north and south points of the diamond indicate the desired airspeed. The east and west points of the diamond are -5 knots and +5 knots of the target airspeed. Stall Speed On Target Speed On Target Speed Target Speed plus 5 kts Target Speed minus 5 kts
Touching top of pendulum to horizon yields 200 fpm climb Touching top of pendulum to horizon yields 200 fpm climb Touching bottom of stick to horizon yields 200 fpm descent Touching bottom of stick to horizon yields 200 fpm descent Vertical Airspeed The Vertical Airspeed Indicator (VSI) tells you have fast the Predator’s altitude is changing in feed per minute. The desired vertical airspeed is set for the flight task and the ends of the yellow stick (upper line) and pendulum (lower line) are modified to enable you to fly at the desired rate by touching the top of either line to the horizon line, as shown in the figure at right. Placing the top of the pendulum on the horizon line indicates a 200 feet per minute climb. Touching the bottom of the stick (the upper line) on the horizon indicates a 200 feet per minute descent.
Engine Power The amount of power produced by the Predator is controlled by the throttle. It is indicated by the green portion of the speed strut. The blue portion of the speed strut indicates the amount of power remaining. The amount of power produced (indicated by the green part of the speed strut) can be related to the yellow bent wings to determine the amount of power necessary to achieve level flight. When the top of the green portion of the speed strut touches the top bent wing ( and the bottom part touches the bottom bent wing), the amount of power needed for level flight is reached. In practice, the amount actually needed may be slightly above or below the yellow bent wing., but it is close enough that it should be used as a guide for “dialing-in” the appropriate amount of power needed. The figure below shows a stylized version of the relationship of the green power used and blue power available portions of the speed strut and the yellow bent wing. Power Used Power Used Power Available Power Available
Altitude Indicator The altitude of the aircraft is indicated by the horizon line. The altitude in feet above mean sea level (MSL) is shown at the outboard ends of the horizon line. When the straight wing of the aircraft metaphor is overlaid on the horizon line, the aircraft is in level flight. Overlaying the horizon line and the straight wings on a row of the starfield will keep the aircraft level with that startfield layer. Horizon overlays current altitude Straight Wings on horizon for level flight Even rows have label, horizon label shows current altitude 500 ft Between layers
Heading The heading of the aircraft is indicated by the alignment of the pitch ladder on the starfield. When the vertical stick ( yellow vertical line) is overlaid on the pitch ladder, the aircraft is not turning either to the left or right. Heading Rate A standard heading rate of turn can be easily flown by aligning the alternate outer portions of the yellow bent wing on the horizon line. The figure at right shows an aircraft in a standard rate turn (3 degrees per second) to the left. Pitch Ladder Overlays current heading Pitch Ladder Overlays current heading Stick on shows Straight or banked flight Stick on shows Straight or banked flight Standard rate Turn to left Standard rate Turn to left
Artificial Horizon A unique aspect of the use of the starfield in the OZ display is that it makes the entire instrument an artificial horizon, or attitude indicator. The horizon line provides pitch information by moving up and down relative to the central green pitch line. The horizon also pivots about it’s central point to indicate the aircraft’s bank angle in turns. Starfield rows bank to replicate attitude information Horizon overlays current altitude
During these flying maneuvers, you will have various information displays available to you on three different computer monitors. The lower monitor will contain the OZ flight instrument, as shown at left.
On Target Speed On Target Altitude On Target Heading
On Target Speed On Target Speed Target Speed plus 5 kts Target Speed minus 5 kts
Touching top of pendulum to horizon yields 200 fpm climb Touching top of pendulum to horizon yields 200 fpm climb Target Altitude is reached when horizon overlays highlighted altitude How to perform altitude changes: To climb, increase your throttle setting and pull back on the stick slightly. Maintain a relatively constant back pressure on the stick. To descend, reduce throttle and push forward on the stick.
Turns How to accomplish smooth turns. In order to perform a smooth turn using OZ, simply align the alternative upper and lower parts of the bent wings on the horizon line. Doing so will result in a standard rate turn (3 degrees per second). The figure to right shows what this alignment looks like. Aligning top left bent wing and bottom right bent wings on horizon results in a standard rate turn to left