Advanced Takeoff

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 - a multiple of the aircraft's stall speed. Angle of Attack - the speed needed to achieve lift at the specified Angle of Attack.
Stall Speed Ratio	Defines 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	Defines 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	Defines the extension of the flaps during takeoff.
Departure Speed Mode	Defines how airspeed will be calculated 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	Defines 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 to use the engine's afterburner during takeoff, if the powerplant strategy that you have selected has one.