Widebody · ICAO K35R

Boeing C-135FR Stratotanker

This variant of the Boeing KC-135 Stratotanker reflects a re-engined version of the classic Cold War-era tanker, fitted with newer, more efficient and quieter engines than the original 1950s design. That upgrade significantly extended the aircraft's service life and improved its fuel efficiency without needing an entirely new airframe. Its refuelling boom, operated by a crew member lying prone at the rear of the fuselage, remains fundamentally unchanged from the original design decades earlier. Aircraft of this lineage remain central to extending the range and endurance of allied air forces around the world.

Boeing C-135FR Stratotanker, example photo from Wikimedia Commons
Photo: Laurent ERRERA from L'Union, France · CC BY-SA 2.0 · Wikimedia Commons

Did you know?

France's C-135FR fleet added wing-mounted refuelling pods so it could serve probe-equipped Mirages and Rafales, not just boom-only US-style receivers, before retiring in 2023.

Specifications

Length41.5 m (136 ft)
Wingspan39.9 m (131 ft)
Height12.7 m (42 ft)
Persons on board20
Crew4
Maximum take-off weight147 t
Range4,570 NM (8,464 km)
Maximum speed469 kt (869 km/h)
Service ceiling50,000 ft (15,240 m)
Optimum ceiling37,000 ft (11,278 m)
Rate of climb5,000 ft/min (25.4 m/s)
Take-off distance4,500 m (14,764 ft)
Landing distance800 m (2,625 ft)
Engines4x CFM International F108
Units built11

Curated by CatchFlights from manufacturer documents, ICAO Doc 8643 and reference works; values are left out where no source could confirm them. Sources are listed on our credits page.

In CatchFlights

In CatchFlights the Boeing C-135FR Stratotanker starts as a Very rare catch. The tier is an editorial judgement of how special a sighting of this type is. The more often you catch it, the closer it moves to Common for you.

A catch counts for the manufacturer Boeing, the C-135FR Stratotanker family and the model in your collection, and the daily Type Rating quiz asks about the types of each family.

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