The Best Thruster for your Boat in San Francisco, CA

The Best Thruster for you Boat in San Francisco, CA

Jet Thrusters have become a fundamental requirement even for the most experienced boater. Marinas have become congested and overcrowded, making docking operations challenging to accomplish. As a result, the possibility of damaging your boat has increased substantially. Jet Thruster America offers a broad array of products including bow thrusters, stern thrusters, a combination of both bow and stern thrusters, and high-quality jet thrusters to give you full control over your boat’s maneuverability. Many prominent boat manufacturers across the world use Jet Thruster America’s bow and stern thrusters for their greatest performance, build quality, durability, and aesthetics. This article highlights the benefits of water jet thruster in San Francisco, California, with a great emphasis on the efficiency factor.



Boats are available in a variety of sizes and shapes. Jet thrusters are now available for almost every kind of watercraft and sailing yacht ever designed. The water jet thruster technology is a unique and efficient technology that propels vessels by producing a reaction force from high-speed water jetting. The water jet propulsion system suctions water from the bottom of the vessel and uses a propulsion pump to increase the water flow and produce thrust through momentum change. The technology is faster, silent, and sustainable than traditional thrusters.

How are Jet Thrusters different?

Jet Thrusters work in a completely different way than traditional propellers. A traditional propeller concentrates on pure pressure differences while minimizing the change in velocity. On the other hand, the main objective of the jet thrusters is to increase the velocity difference between the inlet and outlet. The thrust is produced by the change in momentum. Propulsion is obtained by multiplying thrust by a high flow rate. This unique operation of the Jet thruster systems leads to the following diverse characteristics:

  • The operation occurs in a closed channel rather than in the open sea.
  • It was designed as a pump, not a propeller.
  • Increased impeller Revolutions per Minute (RPM)
  • Rotational losses can be compensated by using stators.

What’s the critical Factor of Jet Thruster Systems?

When it comes to finding the best thruster for your boat in San Francisco, CA, efficiency is one of the most critical factors to consider.

  • Efficiency

The Jet Thruster pump suctions water through a 3″ or 4″ inlet on the vessel’s bottom, which is fitted with an isolating ball valve. A huge water flow is produced by the strong pump, which is directed by unique electro-motive valves through flexible reinforced rubber hoses. Jet Pumps are not the same as propellers and they do not have similar constraints. 90% Pump efficiency is usually achieved by using a jet thruster system. Traditional propellers, on the other hand, have a maximum efficiency of 60 to 72%. However, the pump isn’t the only determinant in water jet efficiency. The efficiency is affected by various factors:

  1. Absorption losses 
  2. Diffuser outlet losses
  3. Internal skin resistance
  4. Pump performance
  5. Altitude change (outlet is higher than inlet)
  6. Ratio of Velocity.

Do submarines use Jet Thrusters?

Jet Thruster propulsion system is being used by the American Navy on a variety of submarines, including nuclear power attack submarines. 


Water Jet Thruster provides excellent maneuverability, durability, and promises greater productivity at high velocities. However, if you select the inappropriate jet thruster or use it at the improper boat velocity, efficiency drastically drops. Jet Thrusters perform worse than traditional propellers when used incorrectly. Jet Thruster America is a renowned manufacturer of bow and stern thrusters. We can assist you in picking the best thruster for your boat in San Francisco. 

Contact us today to get started. 



Jet Thruster North America
2226 72nd Dr. East
Sarasota, FL 34243

Contact information:

Tel. (855) 584-7878 (941) 212-5023
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All our products are manufactured according to CE regulations. We keep the rights to change descriptions, graphs or statements, which are required for technical development of our Jet Thruster systems.