New Heater Kits for Northern Sea Route Vessels

Posted by Irina Tabakina

Northrop Grumman has developed winterization field upgrade kits for vessels using the Northern Sea Route. These heater kits will enable Marine Navigation Radar Turning Units to be operated in temperatures down below -55 degrees Celsius, in addition to keeping the S-Band and X-Band sensors in the turning units free from ice. Northrop Grumman Sperry Marine has designed them to be attached in the field at or after installation, and they are compatible with all VisionMaster FT (VMFT) radar sensors. The winterization field upgrade kit is approved by the Russian Maritime Register of Shipping and allows the operator to extend the working temperature of any unit. With the opening of the Northern Sea Route and with new regulations for polar navigation coming into force, products will need to meet Safety of Life at Sea (SOLAS) requirements, which specifies that at least one radar be equipped with ice detection capability.


(As published in the November 2014 edition of Maritime Reporter & Engineering News -

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