Ace One is our latest generation GPS/INS based helicopter autopilot system that combines the highest level of precise measurements and environment-independent rate of INS updates. Ace One's exceptional performance meets the highest requirements for commercial use in the areas of industrial aerial photography to high-end military operations. It is smaller than our previous generation and weights in a mere 161 grams comparing to 650 grams with improved algorithm.

GPS Atti. mode has the same performance with GPS cruise mode. The only difference is helicopter attitude control. Stick center position for 0˚ attitude, its endpoint for 45˚which is a fixed limit. GPS Atti. mode can be used in promptly and big flight movement. It will bring to you a new and excellent flight experience.

Product Link:
http://www.dji-innovations.com/products/aceone/features/