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Extension kit for stern thrusters type STERN250

EUR489.99 EUR576.46
In stock
For the stern thruster to function correctly, it is important that the propeller is submerged well below the waterline. If this is not the case, the propeller may suck air into the tunnel, with a considerable loss of thrust power as aconsequence.
However, on some boats this is not really feasible, because the draft at the stern is too shallow and because the thruster assembly should never protrude beneath the bottom of the boat. In order to ensure both tunnel openings are sufficiently belowthe waterline, VETUS has developed an extension kit for stern thrusters. This kit consists of two shells made of GRP, together with all the necessary stainless steel fastenings.
The kit can be easily retrofitted to existing installations. It should be used if the transom is fitted with other equipment, which may prevent unhindered water flow through the tunnel. It is also ideal for so-called “house boats”, which in generalhave a very shallow draft both at the bow and at the stern.
More Information
Size X (= 1/2 F + A) min. in inches, see drawing 6 1/32
Internal tunnel diameter (inches) 9 7/8
Size A in inches, see drawing 1 1/8
Size B in inches, see drawing 12
Size X (= 1/2 F + A) in mm, see drawing 153
Size D in mm, see drawing 360
Size F, diameter in mm, see drawing 250
Size D in inches, see drawing 14 3/16
Size C in mm, see drawing 1066
Size B in mm, see drawing 303
Size A in mm, see drawing 28
Size C in inches, see drawing 42
Tunnel dia. (mm) 250
Size E in inches, see drawing 14 9/16
Size F, diameter in inches, see drawing 9 27/32
Size E in mm, see drawing 370
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