Kazan Helicopters showed its Mil-17-1V helicopter customised for offshore oil work or maritime patrol. The helicopter, which features some Elbit-built avionics, has two external 900-litre (237 USgal) fuel tanks, giving it a maximum range of over 1,110km (600nm). Modifications have been made to help it stay afloat in case of an emergency landing on water.

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Source: Flight International