Since its inception, Seacraft scooters have used an innovative stator system inspired by jet engines. All propeller work causes a torque effect, a natural consequence of its rotating action. The force that causes the water stream to swirl also creates a turning force on the scooter handle which increases diver fatigue.

Our system interacts with the propeller slipstream. By changing its swirl to generate a net thrust it ejects more uniformly in the water column. Not only does this increase maneuverability but it also decreases silting when maneuvering close to a fine-sediment bottom.

Our older aluminum designs utilized a curved flat plate that had been optimized for a speed of 1m/s.

However, with our new design, much higher speeds are obtainable.  The new design uses an under-cambered airfoil that allows for complete elimination of the torque effect in all speed ranges by creating a counterforce that is proportional to the water flow speed.

Construction technology based on fiberglass-reinforced polymers, rather than the older aluminum construction, decreases the total weight of this scooter by 300g. Making it almost neutral in water aids in the underwater scooter dismantling protocols used in the military. At the same propeller RPM, it also increased thrust by 2% compared to the older design. Ready to dive, the redesigned Seacraft Future models weight only 15.9kg.

The new post-swirl stator is fully compatible with older Seacraft DPV’s. Every new scooter comes with it from the factory.

Aluminum construction is still available on special order when extreme mechanical resistance is required.



Fig.1 Flow trajectories without post-swirl stator

Fig.2 Flow trajectories with new post-swirl stator

Our previous alluminium design which was using curved flat plate was optimised for speed of 1m/s.

Due to much higher speeds obtainable with our DPV we redesigned this solution, using under-cambered airfoil, to allow for complete elimination of torque effect, in all speed ranges (created counterforce is proportional to water flow speed).

Special construction technology based on fiberglass reinforced polymers allowed also to decrease the total weight of this element by 300g, and make it almost neutral in water, for easiness of underwater scooter dismantling protocols. It also increased thrust by 2% compared to previous solution, at the same propeller RPM. This makes also Seacraft Future models weight only 15,9kg, ready to dive.

New post-swirl-stator is fully compatibile with older Seacraft units, and every scooter leaving the factory is now equiped with it.

Alluminium construction is still available on special order, when extreme mechanical resistance is required.


As the Add Helium dive team began to explore deeper and further, they were not satisfied with the “status quo” of information. Training agencies and industry experts clearly disseminated outdated and unsubstantiated information.

We all need information based on valid research to achieve optimal dives.

The information you seek, the information we all seek, is here on our site – take a peek and improve your dives.

21 Feb
How Do You Learn Best? Improve Your Dive Learning Experience

Feb 21st, 2018 by admin in Business ,Rebreather Diving

Ever wondered how we learn and how we retain what we learned? Have you noticed that you will retain less than 100% of the material presented? Furthermore, because you zone out, get distracted, or do not comprehend, you are not even cognizant of the things you see and hear during the class. Every time a,

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Why Pockets?
08 Jan
Why pockets?

Jan 8th, 2018 by admin in Business ,Rebreather Diving

During a dive, clipping gear to D-rings provides easy access to items we use most often. Reels, lights, primary SMB’s and line arrows are good examples of items we use often on a dive. However, we bring some items “just in case”. Many of these items could present an entanglement issue if stored externally. Pockets are often the best place to store these items. For example, spare masks, gloves, secondary cutting

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05 Jan
2nd Annual Add Helium Expedition Seminar Trip Report

Jan 5th, 2018 by admin in Rebreather Diving

Since last year’s event was a full success, we hosted it again at Dive Tech in Grand Cayman. Conditions were terrific for this time of year. The water temperature was at a balmy 81 degrees all the way down to 400 feet and the air temperature ranging mid 80’s during the day and mid 70’s in the evening. Some of the participants from last year’s event decided to return for another round thus giving the group a nice mix of new and old acquaintances. This year we had Inspirations, rEvos, Megalodons a

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