The ProBoat Vortex .46 Airboat RTR is Completely ready-to-run, with no assembly required Evolution .46 engine is air-cooled, easy-to-start and packs plenty of power Easy engine access for starting and tuning Sleek, durable fiberglass hull Oversized rudder for increased handling Protective shroud offers added safety without affecting performance Pro Boat 2-channel AM radio included Waterproof radio compartment beneath canopy offers easy access to radio equipment Pro Boat is proud to introduce the latest in nitro airboat performance, the Vortex .46 RTR. Featuring an incredibly powerful, pre-tuned Evolution .46 engine already installed, the ProBoat Vortex .46 Airboat is the easiest to use airboat available. A large protective shroud adds safety while allowing easy access to the glow plug and needle valves. A Pro Boat 2-channel radio and receiver are already installed as well, so all that is needed are batteries and fuel. And the oversized rudder design offers excellent handling for quick turns. The ProBoat Vortex .46 Airboat Specs are; Length: 31 in. Beam: 15 in. Engine Size: .46 Evolution Radio: 2-channel 27mHz AM Hull Material: Fiberglass Composite Trim Scheme Colors: Silver/purple Prop Size: Evolution 3-blade Hull Type: Airboat Kit/RTR: RTR Pro Boat