... feathering shaft and tail output shaft are all made from heat-treated, hardened stainless steel. Awesome performance, ultra-smooth handling, ruggedness ... plate and carbon fin. 14.Shrouded fan for efficient heat dissipation. 15.Spacious 3-deck tray for electronic devices. ... tanks (total capacity: 480 cc). 17.High-quality, preprinted fiberglass canopy. 18.Lightweight paddles for 3D (weigh only 20 grams ...