Navigation

What is Autopilot, its principle and details?

June 17, 2016

27,436 Views

PROPORTIONAL CONTROL

The effect on steering when only proportional control is applied causes the rudder to move by an amount proportional to the off-course error from the course to steer and the ship will oscillate on either side of the required course line.

DERIVATIVE CONTROL

The rudder is shifted by an amount proportional to the rate of change of ship’s deviation from the course. The ship will make good a course which is parallel to the required course and will continue to do so until the autopilot is again caused to operate by an external force acting on the ship.

INTEGRAL CONTROL

There are certain errors due to the design parameters of the vessel which have to be corrected. Data signals are produced by continuously sensing heading error over a period of time and applying an appropriate degree of permanent helm is used for this purpose. The permanent helm acts as mid-ship.

Page 3 of 7 Prev Next

About the author

Amit Sharma

Graduated from M.E.R.I. Mumbai (Mumbai University), After a brief sailing founded this website with the idea to bring the maritime education online which must be free and available for all at all times and to find basic solutions that are of extreme importance to a seafarer by our innovative ideas.

View all posts

About Us

Marinegyaan.com is not just another website; it’s a mission to create World’s Biggest Online Marine Encyclopedia for the World and to find solutions that are of extreme importance to all seafarers across the globe.

Marine Gyaan Encyclopedia is a free online resource aims to document all maritime subjects and queries to replace bulky reference books. It is a benevolent reference work for Maritime community in an exhaustive manner. Our encyclopedia covers a great collection of study materials and detailed notes in subjects such as Navigation, Cargo work, Ship operation technology, Meteorology, ROR and Ship Stability etc. Searchable index include more than 2000 nautical topics in expected MMD written and oral exams with pinpoint answer, making our site a good all around tool for MMD exams preparation.

The collaborative and constantly updated encyclopedia is free for everyone to use and perfect for candidate who are preparing for MMD written or oral exams such as Second mate, Chief mate or Masters. All of the entries have been written and approved by actual scholars, which means you won’t have a problem when it comes time to cite sources. In addition to our massive store of reference material for fellow mariners, we are providing online bookings for various Maritime courses in maritime institutes across India.