Coupler with square end (outboard) – 511B73

Aluminum Outboard drive for electric cnc made with carbon fin note: it is sold on various sites as compatible with nitro 3.5cc engines but is not suitable, good instead with electric hulls even with long 90/100cm,
Can mount propellers up to 42mm in diameter on a shaft of 4.76mm, as standard comes with the clamp with square for flexible, for motors with axle diameter 5mm, but is also available a clamp Tempest for axles of 4mm.