diff --git a/src/Instrumentation/vertical_speed_indicator.cxx b/src/Instrumentation/vertical_speed_indicator.cxx index e5c9f7432..e062db010 100644 --- a/src/Instrumentation/vertical_speed_indicator.cxx +++ b/src/Instrumentation/vertical_speed_indicator.cxx @@ -32,6 +32,7 @@ VerticalSpeedIndicator::init () _serviceable_node = node->getChild("serviceable", 0, true); _pressure_node = fgGetNode(_static_pressure.c_str(), true); _speed_node = node->getChild("indicated-speed-fpm", 0, true); + _speed_up_node = fgGetNode("/sim/speed-up", true); // Initialize at ambient pressure _internal_pressure_inhg = _pressure_node->getDoubleValue(); @@ -44,6 +45,9 @@ VerticalSpeedIndicator::update (double dt) // from 10000 to 10500 for manual factor if (_serviceable_node->getBoolValue()) { double pressure = _pressure_node->getDoubleValue(); + double speed_up = _speed_up_node->getDoubleValue(); + if( speed_up > 1 ) + dt *= speed_up; _speed_node ->setDoubleValue((_internal_pressure_inhg - pressure) * 10500); _internal_pressure_inhg = diff --git a/src/Instrumentation/vertical_speed_indicator.hxx b/src/Instrumentation/vertical_speed_indicator.hxx index 2b6a930d4..d40aa5693 100644 --- a/src/Instrumentation/vertical_speed_indicator.hxx +++ b/src/Instrumentation/vertical_speed_indicator.hxx @@ -49,6 +49,7 @@ private: SGPropertyNode_ptr _serviceable_node; SGPropertyNode_ptr _pressure_node; SGPropertyNode_ptr _speed_node; + SGPropertyNode_ptr _speed_up_node; };