Advanced Climb

An Advanced Climb performance model is comprised of a simple set of parameters that define the flight characteristics of the aircraft while climbing and is mapped to the physical properties of the aircraft that are currently defined in the Advanced Fixed Wing Tool.

Climb

Field Description
Climb Airspeed

Select a mode to calculate the aircraft's airspeed while descending.

  • Best Climb Rate - the speed at which the aircraft's rate of climb is maximized.
  • Best Climb Angle - the speed at which the aircraft will gain the most altitude over downrange distance.
  • Min Fuel Climb - the speed at which the aircraft's fuel consumption is minimized.
  • Override Airspeed - a specific, manually defined speed.
Airspeed The aircraft's airspeed; this property is calculated unless you have selected Override Airspeed for the Climb Airspeed property.
Use Afterburner A jet engine component that provides an increase in thrust by injecting additional fuel into the jet pipe, downstream of the turbine. An afterburner is usually employed in supersonic flight, certain takeoff scenarios, and in combat situations. Select this check box to use the engine's afterburner when climbing, if the powerplant strategy that you have selected has one.
Throttle

Select the Override Throttle check box to specify a reduced throttle value when climbing.

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.

Airspeed Limit Below Alt

Airspeed Limit Below Alt parameters are used to specify an airspeed limit when the aircraft is below a specified altitude. This limit represents a flight regulation (the default value is the limit proscribed by the FAA) and is not related to the actual performance capabilities of the aircraft.

Table - Airspeed Limit Below AltClosed

Field Description
Use Airspeed Limit

Select the check box to apply an altitude airspeed limit on the aircraft.
Altitude Limit The altitude threshold, below which the airspeed limit will be applied.
Airspeed

The aircraft's maximum airspeed when below the Altitude Limit; select a reference from the drop-down menu - true airspeed (TAS True Airspeed: the speed that the aircraft is moving relative to the airmass that it is flying in.), calibrated airspeed (CAS Calibrated Airspeed: the speed reported by the airspeed indicator, corrected for position and instrument error.), equivalent airspeed (EAS Equivalent Airspeed: the airspeed at sea level (International Standard Atmosphere) at which the dynamic pressure is equal to the dynamic pressure at the aircraft's current true airspeed and altitude.), or Mach The ratio of the aircraft's speed and the speed of sound at the aircraft's altitude, with local atmospheric conditions. number.

Compute Delta Altitude

The Compute Delta Altitude property defines the maximum change in altitude in a computed segment before the data is sampled again and a new segment is begun.