This is the Aeroworks 50CC Ultimate. The plane is modified to accept the 3W 50 CC TOC engine and uses Hitec Digital servos. Plane use 2 2800 MAH LIFE packs thru a BlueBox 8/16 distribution panel. Engine is manage thru a ignition eliminator reducing overall weight by 1 pd. Total weight is 15.8 pds on a digital scale.