Detrum Z3 Flight Controller for Nitro & Gas Airplanes w/ GPS and 3-in-1 Program Card ComboDetrum Z3 Flight Controller for Nitro & Gas Airplanes w GPS and 3 in 1 Program Card Combo DTM 1010 (Nitro Version) Detrum Z3 is a flight controller for fixed wing airplanes, including normal, delta wing, and V tail airplanes. It connects to the receiver on the airplane to provide flight control. Z3 supports five flying modes: Return Home Mode: once actuated, the airplane flies back to the location where it takes off regardless of the airplane flight