An Advanced Takeoff performance model is comprised of a set of parameters that define the flight characteristics of the aircraft during a takeoff and is mapped to the physical properties of the aircraft that are currently defined in the Advanced Fixed Wing Tool.
Takeoff
| Field | Description |
|---|---|
| Takeoff Speed Mode |
Select a mode to calculate the aircraft's airspeed upon leaving the ground.
|
| Stall Speed Ratio | The Stall Speed Ratio upon leaving the ground; this property is calculated if the Speed Mode is set to Angle of Attack or manually defined if it is set to Stall Speed Ratio. |
| Angle of Attack | The Angle of Attack upon leaving the ground; this property is calculated if the Speed Mode is set to Stall Speed Ratio or manually defined if it is set to Angle of Attack. |
| Flaps | The extension of the flaps during takeoff. |
| Departure Speed Mode | The method that will be used to calculate airspeed upon leaving the ground. Select Best Climb Angle or Best Climb Rate to force the aircraft to fly at the best climb angle or climb rate, respectively, and achieve and maintain the airspeed that is a function of that goal. Select Use Climb Perf Model to apply the airspeed defined for the Climb performance model of the current mission phase. |
| Departure Speed Limit | The aircraft's maximum airspeed upon leaving the ground; select a reference from the drop-down menu - true airspeed (TAS), calibrated airspeed (CAS), equivalent airspeed (EAS), or Mach number. |
| Use Afterburner | Select this check box to use the engine's afterburner during takeoff, if the powerplant strategy that you selected has one. |
| Throttle |
Select the Override Throttle check box to specify a reduced throttle value during takeoff. If the powerplant strategy that you selected for the aircraft has an afterburner, you should select the Use Afterburner check box if you apply a reduced throttle. This will ensure that your throttle value is applied to the aircraft's true maximum thrust. |