Marine Link
Tuesday, March 18, 2025

Pod Propulsion

Pods are devices which combine both propulsive and steering functions in one device. They are usually located below the stern of a ship, making use of the following internal components: a fix pitch propeller, shaft, thrust and support bearings, brake, and shaft seals; exciter; AC motor (synchronous); bilge pump; and appropriate monitoring and control equipment. The steering unit uses slewing gears and is located in the hull above the pod itself. Lubrication equipment and ventilation/cooling units are usually located externally, as sub systems. Propulsion pods are not a new product, but a new configuration of traditional marine systems and components.

As yet, studies have not shown whether pods are more efficient than conventional shaft lines. There has been much research on the subject, but most studies have been aimed at a specific aspect of pod performance instead of an overall efficiency review. Several advantages have been attributed to pod propulsion systems, such as: reduced emissions, lower noise and vibration levels and emissions; improved steering maneuvering, and braking capabilities. The reduced number of component parts also allows for more flexibility in arranging system machinery, more efficient construction and improved shipyard logistics. On the opposite end of the argument, pods require a greater capital investment, have a 30MW power limitation (per screw), and have been known to suffer losses in power due to electric propulsion.

Tags: Pod Propulsion

(Image: ZF Marine)

ZF Marine Debuts 4600 POD Propulsion System

Marine driveline specialist ZF announced it will premier its new 4600 POD Propulsion…

Image: Copyright Nobiskrug

Superyacht ARTEFACT: A real “arte factum”

NOBISKRUG’s Project 790 is one of the first yachts built under the new strict IMO…

Shipbuilding: Inland Towing Thunderstruck

Eastern Shipbuilding offers the 4,200 hp Thunderbolt inland towboat designed around…

Twin electric V-Pod propulsion and diesel-electric technology combined. Image courtesy of Eastern Shipbuilding

Thunderbolt: Eastern Delivers Innovative Towboat

Eastern Shipbuilding Group, Inc. introduced its new 120-ft., 4,200-hp Inland Towboat design…

Eastern Debuts ‘Thunderbolt’ Towboat

Eastern Shipbuilding Group, Inc. introduced its new 120-foot, 4,200-horsepower Inland…

Carnival cruise ship: CCL Image

Azipods Earn US$180-Million for ABB in 2013

Pod propulsion system Azipod® was the propulsion system of choice for 6 new cruise liners in 2013…

Pod controls: Image courtesy of Caterpillar Marine

Caterpillar Set to Showcase New Pod Propulsion Engine

Caterpillar Marine say they will unveil a significant product milestone at the 2013…

Photo courtesy ZF Marine

ZF Marine’s New Single POD Propulsion System

ZF Marine LLC, the North American division of the global ZF Marine Group, introduced…

Photo courtesy Effect Ships International AS / SES Europe AS

Air Supported Monohull with Pod Propulsion

Effect Ships International AS, Sandefjord, Norway has just launched their first Air…

Royal Caribbean, Rolls-Royce Pod Settlement

Royal Caribbean Cruises Ltd. (NYSE, OSE: RCL) and Rolls-Royce announced that they…

STX Europe, New Order from French Navy

STX Europe has, through its subsidiary STX France Cruise SA, signed a contract to…

Siemens Equips Ships for Australia's Navy

Siemens Marine Solutions has been commissioned by the Spanish shipyard Navantia S.A.

Related Articles

Digitalization and Smart Shipping: Transforming the Maritime Industry

The maritime industry, a cornerstone of global trade, is undergoing a significant transformation through the adoption of digitalization and smart shipping technologies. As the industry navigates the challenges of efficiency, sustainability, and safety, digital solutions are emerging as key drivers of change. From enhanced operational efficiency to real-time data analytics, digitalization is revolutionizing how ships and ports operate, paving the way for a smarter, more connected maritime future.

Drug Smuggling on Ships and Submarines: An Escalating Threat

Drug smuggling has long been a lucrative enterprise for criminal organizations worldwide. With the increasing sophistication of law enforcement agencies and border controls, smugglers are continuously adapting their methods. One of the most challenging trends to combat is the use of ships and submarines to transport illicit drugs across international waters. This article explores the methods, routes, and challenges associated with maritime drug smuggling.

Maritime Piracy in Southeast Asia

Maritime piracy in Southeast Asia has been a persistent and complex issue with deep historical roots and contemporary relevance. This region, characterized by its extensive coastal areas, strategic maritime routes, and bustling trade activities, has frequently been targeted by pirates. The issue of piracy in Southeast Asia presents economic, security, and governance challenges that require regional cooperation and coordinated efforts.

Maritime Piracy in the Horn of Africa:

The Horn of Africa, strategically positioned at the nexus of global trade routes, has long faced the specter of maritime piracy. The waters off Somalia, in particular, have been notorious for piracy incidents that have disrupted international shipping, imperiled seafarers, and prompted multinational military responses. This region's unique combination of socio-economic, political, and geographic factors has engendered a breeding ground for modern piracy, posing complex challenges for the international community

Maritime Security

Maritime Security is a term which applies to a large variety of technology, devices, and operations both on deck and on shore. It can mean the simple measures used by boat owners and operators to protect individuals, vessels, and cargo from theft, sabotage, or piracy.

Subscribe for
Maritime Reporter E-News

Maritime Reporter E-News is the maritime industry's largest circulation and most authoritative ENews Service, delivered to your Email five times per week