The head assembly of the SAB Goblin 700 is an all-aluminum flybarless work of art with a short profile head block that keeps the center of the main rotor disk as close to the center of mass of the heli as possible. Cyclic servo linkages are configured in a 120-degree, direct-to-swash arrangement.
The Goblin's tail boom is a molded carbon fiber tube that is not round, rather it has a square shaped cross section that is larger toward the pod section of the helicopter and tapers off toward the tail. The structural rigidity that is provided by the molded carbon fiber tail boom eliminates the need for carbon fiber boom support rods that are found in most other helicopters in the RC market. In addition, the tail boom features a break-away design that uses nylon fasteners to allow the boom to separate from the pod in the event of a crash. The design feature is meant to prevent damage to the tail boom.
