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FAQ

 

Alpha Power Jet

 

1-    Towing Capability and High Speed Effiency; how can these two objectives be atteined in One Single Propulsion Unit?

 

Our jet drives are designed to avoid cavitation at low speed.  A propeller is designed to give maximum performance and to load the engine at a certain speed.  At low speed , the engine of a high speed craft will be overload and vice versa for a towing vessel. The towing propeller size and pitch are designed to submit a high trust with a low speed.  But since a jet act as a pump, speed is not a factor of the effiency. However, at low speed your jet will provide you with a lot of power and will also give you access to a very high speed.

 

2-    How can you get any Weight Saving using Stainless Steel compared to Aluminium?

 

Most jet drives are made of aluminium castings. These are subjected to corrosion, cracking and casting imperfections.  To minimize these risk, a lot of weight is added by increasing the casting ticknesses.  Stainless steel offer more resistance to corrosion and can rely on better mechanical properties which allows us minimize the ticknesses.

 

3-    How can you save on Installation Cost?

 

Every unit is shipped with all accessories installed and tested. It include steering & bucket hydraulic system.  All you have to perform is bolting the unit to the hull and transom and then to connect hydraulic hoses,morse cables and drive shaft.  No bracket for steering cylinder, pump or linkage reservoir to install (Plug and Play).

 

4-    How do you adapt for different RPM and Horse Power?

 

Our selection of impeller is offering about 80 different sizes, compared to 5 or 6 for the competition.  We are then more equipped to suit your specific need, you won’t have to perform any compromise, with our 2 to 6 blade propellers  and 20 different pitch settings, we will take care of it.

 

5-What about Maintenance Cost and  Life Expectancy?

 

We choosed to use only standard equipment when we proceed with the selection of all our mechanical components. So you may purchase your seals, bearings or pumps from any industrial  part dealer . We use an hydraulic piston pump with reduced RPM gear driven ( 1.5 to 1 ) for trouble free operation. Our hydraulic cylinders are built using hard chromed stainless steel shaft for a longer hydraulic system life expectancy because of it’s lower friction factor and corrosion resistance. Easy access to every parts reduce the need to contact specialized dealer to repair or renew so you can save time and money.

 

 

6- Is the jet approved by any Classification Society?

 

Yes, Type approval by Bureau Veritas.

 

7-  Is your jet subjected to speed reduction under loaded condition?

 

We are a lot more resistant to speed loss due to weight increase than any other company.  This is due to our volume of water and to the the elocity of the fluid at the end of the nozzle.

 

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