. The ADVANCED KIT SERIES is composed of nine unique models utilizing different main airframe diameters. These kits allow power usage experimentation that is available in D to G class motors. These kits offer the BEST in precision manufacturing and design concepts. LOC's exclusive pre-slotted airframe for through-the-wall fin construction or fin wedge attachment is introduced in this series. Each kit comes complete with nylon elastic shock cord, plastic nose cone, nylon chute, thick-walled airframe tubing, precision machined plywood fins and centering rings.