59-1511

59-1511 is a Boeing KC-135 Stratotanker, a four-engine jet. SkyMeter has tracked 76 flights totalling 313 hours of airtime via ADS-B across 2 callsigns. The most frequent segment is EGUN to EGUN. Service window in our records spans 244 days. Of those flights, 4 (5.3%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion. The Boeing KC-135 Stratotanker has a 131 ft wingspan, a maximum takeoff weight of 322,500 lb.

About the Boeing KC-135 Stratotanker

The Boeing KC-135R Stratotanker is the backbone of American aerial refueling, a Cold War-era tanker that has kept U.S. and allied combat aircraft aloft for more than six decades. Derived from the Boeing 367-80 prototype that also spawned the 707 airliner, the KC-135 entered service in 1957 as the world's first jet-powered tanker, replacing piston-engine KB-29s and KB-50s.

The R-model designation marks the most significant upgrade in the type's history: between 1984 and 2002, the Air Force re-engined 415 airframes with CFM International CFM56 turbofans, replacing the original Pratt & Whitney J57 turbojets. The new engines delivered 24 percent more thrust, cut fuel consumption by 25 percent, and dramatically reduced noise—transforming a 1950s design into an aircraft expected to serve into the 2040s. The KC-135R can offload roughly 200,000 pounds of fuel on a typical mission, operating from a service ceiling above 50,000 feet with a range exceeding 1,500 nautical miles when fully loaded.

Its flying boom system transfers fuel at up to 1,000 gallons per minute, far faster than the probe-and-drogue rigs used by most other tankers. The Stratotanker has supported every major U.S. military operation since Vietnam, from Desert Storm to enduring campaigns in Afghanistan and the Middle East, often flying 20-hour sorties with multiple receiver aircraft.

Beyond the U.S. Air Force, France, Singapore, Turkey, and Chile operate KC-135 variants, and a small number have entered civilian hands for cargo and specialized transport roles. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.