What is the difference in the Altrak and the Altrak VS?
A – The Altrak VS can change the desired altitude by simply rotating the VS control knob to the right to command a vertical speed climb, or to the left to command a vertical speed descent. The maximum possible vertical speed in either direction is approximately 800 feet per minute. The Altrak VS also has the ability to enunciate the need to trip the aircraft, with a rapid flashing for trim up, and a slow flashing for trim down. The Altrak is only Altitude hold.
