The BOSS is made, and designed by AR MODEL BOAT DESIGN. Outboard drive made from lite weight fiberglass with aluminum  sheets sandwich between the fiberglass creating a super strong part. Outboard drive is got a internal exhaust system in the midsection, and a low water pickup in the lower unit nose cone to cool the engine. This drive is flex shaft driven, no GEARS. Left hand rotation. This outboard drive  was design to mimic a real full size outboard in looks, and operation. Outboard GAS motor is best suited for boat 50inches and bigger. All outboard builds take up to 3 weeks to complete. The Zenoah engine is made from another company. Engine is not a product of AR MODEL BOAT DESIGN