AircraftType.SpeedProfile Property
Gets or sets an attribute variable that describes how the speed of an aircraft depends on the climb or descent angle. Unit: km/h.
Syntax
public AttributeVariable< System.Double > SpeedProfile { get; set; }Property Value
Default: 50.0
An attribute variable that describes how the speed of an aircraft depends on the climb or descent angle. Unit: km/h.
Remarks
This property refers to an attribute variable that behaves in an unusual way: instead of depending on any feature attributes, it can depend only on a formal attribute named climbAngle, whose value is assumed to be a number between −90° and 90°. For any climb angle in the valid range, the attribute variable should be possible to evaluate to the corresponding speed of the aircraft. The speed will be interpreted as the magnitude of the 3D velocity, not just the horizontal component.
The attribute variable should be based on either a lookup table or an expression. A fixed value is also allowed but would be unrealistic, while an indirect attribute variable ("value from feature attribute") would make no sense since some speeds would become negative.
If this attribute variable is based on a lookup table, the semantics will be somewhat unusual: instead of the usual nearest-lower-neighbor lookup, the speed for a climb angle will be interpolated if necessary. But if the climb angle is less than the smallest key or greater than the largest key, interpolation is not possible, and nearest-neighbor lookup will be used instead.
Platforms
Windows, Linux, Android