Estes Pro Series Leviathan 9700 - Out of Production Launched with METRA Rocketry Club NY Fantastic is what the Leviathan is! This Pro Series II line features "big boy" toys! The Leviathan launches on composite motors and has through the wall fin mounting. An awesome feature to this series is the new quick release motor retention system (Motor Retainer Set - also sold separately). Though massive looking, the construction of this kit is not difficult. Building and finish work can easily be accomplished over a few days. Sure to be a crowd pleaser, the Leviathan is just waiting to be added to your collection! Length: 41.5 in. (105.4 cm Diameter: 3 in. (7.6 cm) Estimated Weight: 17.5 oz. (496.1 g) Laser cut Plywood Fins, Screw on Motor Retainer, 24 in. (61 cm) Nylon Parachute Recovery Recommended Engines: F26-6FJ, F50-6T, G40-7W, G80-7T Projected Altitude: 2000 ft. (457 m) http://metrarocketclub.org/