Fitted with several internal auxiliary fuel tanks.
They were fitted with extra fuel tanks and cameras to carry out their work.
They were also fitted with long-range fuel tanks and given full loads of fuel-a departure in the defection-conscious Soviet air force.
He said the plane had been stripped of extra weight and fitted with extra fuel tanks for long flights.
They made the machine into a single-seater, and fitted her with fuel tanks for about fifteen hours' flight.
Long-range transport aircraft, fitted with extra fuel tanks.
The aircraft was also fitted with extra fuel tanks, taking 13 hours for the trip.
The last of the original 47/4 conversions, from 47650 to 47665, were fitted with extra fuel tanks, giving them an extended range.
At the same time, further locomotives were fitted with extra fuel tanks and renumbered; the series eventually reached 47854.
The tank can fitted with additional fuel tanks to increase vehicle's operational range.