Model JT15D-4

Power 2500 lbf

Diameter 27.30 ''

Length 60.40 ''

The JT15D turbofan engine family is P&WC’s first turbofan engine and continues to enjoy strong success today as new models are introduced embodying the latest technologies. The JT15D powers a wide range of business aviation and government applications since being introduced in the 1970s. The JT15D family is comprised of 3 engine series and 17 models, ranging from 2,200 to 3,400 pounds thrust, with the more than 6,600 engines produced having accumulated more than 41 million hours of flight time. The continued success of the JT15D stems from its impressive levels of reliability and durability, with overhaul intervals having reached higher than 10,000 hours. A strong testimonial to the JT15D’s dependability and durability is its stellar performance powering light to mid-size business jets in the fractional ownership business jet market .

Operators of JT15D engines are supported by P&WC’s industry-leading global customer support. This includes over 30 P&WC-owned and designated service facilities around the world, more than 100 field support representatives on all major continents, a 24/7 Customer First Centre for rapid expert support, the most advanced diagnostic capabilities for this market and the largest pool of P&WC rental and exchange engines in the industry.

JT15D engines have a proven track record in meeting customers’ expectations in performance, reliability, durability, fuel consumption and environmental friendliness. Seventeen JT15D models have currently been produced under 3 series (JT15D-1, JT15D-4 and JT15D-5) ranging in thrust from 2,200 to 3,400 pounds.

The JT15D is a two-spool engine with only six rotating components, a single-stage high pressure centrifugal compressor driven by a single-stage high pressure turbine and a single-stage low pressure turbine driving a robust fan with wide-chord blades and compressor boost stage. A high efficiency reverse-flow combustor ensures low emissions and fuel consumption. The success of the engine with respect to its impressive durability level of higher than 10,000 hours between overhauls was a major reason for selecting this same core to power the PW901A APU on the Boeing 747-400. In fact, the JT15D-based PW901A has also become the benchmark in the APU industry for durability and reliability.

Fan

• Robust, wide chord blades

Single-stage high pressure compressor with axial boost stage

• Centrifugal compressor - compact, efficient, low parts count

Reverse-flow combustor

• Low emissions, high durability

Single-stage High Pressure Turbine

• Continue to embody latest technologies
• Low parts count for low maintenance cost and fast turnaround time

Single-stage low pressure turbine

• Free turbine, shrouded blades
• Drives fan and axial compressor boost stage

Electronic engine control (EEC) system with hydromechanical back-up (JT15D-4 and -5 Series)

• Ease of pilot workload

	Thermodynamic Thrust Class* (Pounds)	Mechanical Thrust Class* (Pounds)	Diameter** (Pounds)	Length** (Inches)
JT15D-5 Series	3,400	3,050	27	60.5
JT15D-4 Series	2,500	2,500	27	63
JT15D-1 Series	2,200	2,200	27	59

* Thrusts are approximate values at take-off. Available at sea level, standard day, static conditions, uninstalled.
** Dimensions are approximate values.

• Aerospatiale Corvette
• Cessna Citation II & II/S
• Mitsubishi Diamond 1A