Please read the entire operation manual to become familiar with the features of the product before using it. In addition to causing major harm to people and property, improper use of this product could damage it. This is not a toy; it's a sophisticated model product. It must be capable of basic mechanical operations and use common sense and caution. This product or other assets may be damaged, or personal injury may occur if it is not used responsibly and safely. Children should not use this product without an adult's close supervision. Without authorization, do not try to disassemble, use incompatible parts, or alter or improve this product in any way. This handbook includes safety