Towed Magnetometer

Owned by jr_crowder

Last updated: Nov 02, 2021 by jr_mateo

1 min read

Port winch

drum circumference = 3.2 m
twenty wraps of cable = 64 m which is also 8" width of cable on the drum
drum width is ~ 40 " which is 96 wraps or 316 m of cable

Marine Magnetics SeaSpy Magnetometer Operation Manual

Marine Magnetics SeaLINK Software Operation Manual

Maggie Quick User Guide

Maggie Tow Cable Termination

Maggie Cheat Sheet

Maggie cheat sheet_old

World Magnetic Model - 2019.0 Main Field Intensity

Magnetometer layback

= 434 m from AFT_GPS. This satisfies the required magnetometer layback of 3 times the length of vessel (3 x 143.4 = 430.2 m)

= 507 m from moonpool (AI fileMagnetometer_Layback.ai/ image)