Pratt & Whitney introduced the JT8D to commercial aviation in 1964 with the inaugural flight of Boeing's 727-100 aircraft.

The JT8D engine has proven itself to be a highly durable and reliable engine, having completed more than 673 million dependable flying hours since entering service. Once deemed the workhorse of the industry, more than 14,750 JT8D engines have flown. Today, there are 2,400 engines still in use.

The eight models that make up the JT8D family cover a thrust range from 14,000 to 17,000 pounds. The JT8D-200 series, which entered service in 1980, offers 18,500 to 21,700 pounds of thrust, and is the exclusive power for the popular MD-80 series aircraft. The JT8D-200 builds on the family's excellent reliability and low maintenance costs while meeting noise and emissions regulations.

Pratt & Whitney has developed a new low-emissions combustion system, or E-Kit, that is FAR 25-certified to ensure the JT8D-200 engine stays current with environmental regulations. The E-Kit reduces JT8D-200 engine NOx emissions by 25 percent and exceeds all ICAO standards for new production engines.

Resources

Fact Sheet

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Engine Cutaway

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AIRPLANES POWERED

JT8D

Aerospatiale SE210 Caravelle Super 10 Thru 12

JT8D

Boeing 727

JT8D

Boeing 737-100/-200

JT8D

Boeing MD-80

JT8D

McDonnell Douglas DC-9

JT8D

Dassault-Mercure Breguet

JT8D

Joint Surveillance Target And Radar System (JSTARS)

JT8D

Kawasaki C-1

JT8D

Super 27 Re-Engining Program

ENGINE MODELS

JT8D

JT8D-7/7A

JT8D

JT8D-9/9A

JT8D

JT8D-15/15Ab

JT8D

JT8D-17/17A

JT8D

JT8D-17R/17AR

JT8D

JT8D-209

JT8D

JT8D-217/217A/C

JT8D

JT8D-219

SPECS

Fan Tip Diameter

39.9–49.2 In

Length, Flange To Flange

120.0–154.1 In

Takeoff Thrust

14,000–21,700 Lb

Flat Rated Temperature

77–84°F

Bypass Ratio

1.0–1.7

Overall Pressure Ratio

15.8–21.0

Fan Pressure Ratio

1.92–2.21

Support

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