Bow Thruster Tunnel Calculator

Calculate bow thruster tunnel diameter and placement for effective maneuvering

Input Parameters

Results

--
Required Thrust
lb
--
Tunnel Diameter
in
--
Tunnel Position from Bow
ft
--
Motor Size
HP

Reference

Tunnel placement: 10-20% of LWL from bow Tunnel must be fully submerged at all load conditions Thrust ≈ 10 lb per HP for tunnel thrusters