Abstract: Disclosed are systems and methods for vehicle conversion projects. In one embodiment, disclosed are systems and methods for a flooring system, which can be used for installation in vehicle. In some embodiments, the flooring system includes flooring sections having matching tabs and notches that interlock. In certain embodiments, a clamping method uses bolts, nut inserts, and washers to clamp the flooring sections to each other. In one embodiment, the washers are configured and placed to overlap joints of the flooring sections. In some embodiments, floor brackets can be used to secure a flooring section to a fixed fixture of the vehicle. In one embodiment, the flooring sections are patterns cut into sheets of material and provided with retaining tabs to facilitate flat pack shipping of the flooring sections.

Abstract: Devices and methods are disclosed related to electric propulsion drives for watercraft. In some embodiments, an electric drive includes an active cooling loop facilitated by a rotating electric motor pumping a coolant through a mast and a housing of the electric drive. The mast can be provided with a separation wall to separate and guide streams of cooler and hotter coolant. The motor and an ESC can be cooled by the coolant. In certain embodiments, the electric drive includes a rotor jacket that substantially surrounds an external rotor of an electric motor; the rotor jacket substantially reduces unwanted eddy currents, and thereby allows the use a large motor and a housing with a smaller external diameter, which reduces hydrodynamic drag. In one embodiment, the external rotor is coupled directly, without intermediary gearing, to a propeller.