The Pratt & Whitney Canada PT6 is one of the most popular turboprop

Turboprop

A turboprop engine is a type of turbine engine which drives an aircraft propeller using a reduction gear.The gas turbine is designed specifically for this application, with almost all of its output being used to drive the propeller...

 aircraft engine

Aircraft engine

An aircraft engine is the component of the propulsion system for an aircraft that generates mechanical power. Aircraft engines are almost always either lightweight piston engines or gas turbines...

s in history, and is produced by Pratt & Whitney Canada

Pratt & Whitney Canada

Pratt & Whitney Canada is a Canadian aircraft engine manufacturer. PWC's headquarters are in Longueuil, Quebec, just outside Montreal. It is a division of the larger US-based Pratt & Whitney , itself a business unit of United Technologies...

. The PT6 family is particularly well known for its extremely high reliability, with MTBO's on the order of 9000 hours in some models. In US military use, they are designated as T74 or T101. The main variant, the PT6A, is available in a wide variety of models, covering the power range between 580 and 920 shaft horsepower in the original series, and up to 1940 shp in the "large" lines. The PT6B and PT6C are turboshaft

Turboshaft

A turboshaft engine is a form of gas turbine which is optimized to produce free turbine shaft power, rather than jet thrust...

 variants for helicopters.

Design and development

Development of the PT6 family started in the late 1950s, apparently as a modern replacement for the Pratt & Whitney Wasp

Pratt & Whitney Wasp

-External links:*...

 radial engine

Radial engine

The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders point outward from a central crankshaft like the spokes on a wheel...

s they were producing at that time. It first flew on 30 May 1961, mounted on a Beech 18 aircraft at de Havilland Canada

De Havilland Canada

The de Havilland Aircraft of Canada Ltd. company was an aircraft manufacturer with facilities based in what is now the Downsview area of Toronto, Ontario, Canada...

's Downsview, Ontario facility. Full-scale production started in 1963, entering service the next year. By its 40th anniversary in 2001 over 36,000 PT6As had been delivered, not including the other versions. The engine is used in over 100 different applications.

The engine consists of two sections that can be easily separated for maintenance. In the gas-generator section air enters through a grill into the low-pressure three-stage axial compressor

Axial compressor

Axial compressors are rotating, airfoil-based compressors in which the working fluid principally flows parallel to the axis of rotation. This is in contrast with other rotating compressors such as centrifugal, axi-centrifugal and mixed-flow compressors where the air may enter axially but will have...

, then into a single-stage centrifugal compressor

Centrifugal compressor

Centrifugal compressors, sometimes termed radial compressors, are a sub-class of dynamic axisymmetric work-absorbing turbomachinery.The idealized compressive dynamic turbo-machine achieves a pressure rise by adding kinetic energy/velocity to a continuous flow of fluid through the rotor or impeller...

, through the annular reverse-flow combustion chamber

Combustion chamber

A combustion chamber is the part of an engine in which fuel is burned.-Internal combustion engine:The hot gases produced by the combustion occupy a far greater volume than the original fuel, thus creating an increase in pressure within the limited volume of the chamber...

, and finally through a single-stage turbine that powers the compressors at about 45,000 rpm. Some power is also taken from the compressor end of the shaft to power an accessories section, which also loads the engine when idle to keep it from racing out of control, because the fuel control unit can't prevent that. The hot gas from the gas generator section then flows into a separate power section of the engine, containing a single-stage turbine driving the power take-off

Power take-off

A power take-off or power takeoff is a splined driveshaft, usually on a tractor or truck, that can be used to provide power to an attachment or separate machine. It is designed to be easily connected and disconnected...

 system at about 30,000 rpm. For turboprop use, this powers a two-stage planetary output reduction gearbox, which turns the propeller at a speed of 1,900 to 2,200 rpm. The exhaust gas then escapes through two side mounted ducts in the power turbine housing, and is directed away from the engine in order to provide about 600 lbf (2,668.9 N) of jet thrust. The engine is arranged such that the power turbines are mounted inside the combustion chamber, reducing overall length.

In most aircraft installations the PT6 is mounted backwards in the nacelle, so that the intake side of the engine is facing the rear of the aircraft. This places the power section at the front of the nacelle, where it can drive the propeller directly without the need for a long shaft. Intake air is usually fed to the engine via an underside mounted duct, and the two exhaust outlets are directed rearward. This arrangement also aids maintenance by allowing the entire power section to be removed along with the propeller, exposing the gas-generator section.

Several other versions of the PT6 have appeared over time. The PT6A large added an additional power turbine stage and a deeper output reduction, producing almost twice the power output, between 1,090 and 1920 shp. The PT6B is a helicopter

Helicopter

A helicopter is a type of rotorcraft in which lift and thrust are supplied by one or more engine-driven rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forwards, backwards, and laterally...

 turboshaft model, featuring an offset reduction gearbox with a freewheeling clutch and power turbine governor, producing 1000 hp at 4,500 rpm. The PT6C is a helicopter model, with a single side-mounted exhaust, producing 2000 hp at 30,000 rpm, which is stepped down in a user-supplied gearbox. The PT6T Twin-Pac

Pratt & Whitney Canada PT6T

-External links:* * * *...

consists of two PT6 engines driving a common output reduction gearbox, producing almost 4000 hp at 6,000 rpm. The ST6 is a version intended for stationary applications, originally developed for the UAC TurboTrain, and now widely used as auxiliary power unit

Auxiliary power unit

An auxiliary power unit is a device on a vehicle that provides energy for functions other than propulsion. They are commonly found on large aircraft, as well as some large land vehicles.-Function:...

s on large aircraft, as well as many other roles.

When de Havilland Canada

De Havilland Canada

The de Havilland Aircraft of Canada Ltd. company was an aircraft manufacturer with facilities based in what is now the Downsview area of Toronto, Ontario, Canada...

 asked for a much larger engine, roughly twice the power of the PT6 Large, P&WC responded with a new design initially known as the PT7. During development this was renamed to become the Pratt & Whitney Canada PW100

Pratt & Whitney Canada PW100

-External links:*...

.

PT6A

The PT6A is a free turbine providing 500 to 1,940 shaft horsepower

Horsepower

Horsepower is the name of several units of measurement of power. The most common definitions equal between 735.5 and 750 watts.Horsepower was originally defined to compare the output of steam engines with the power of draft horses in continuous operation. The unit was widely adopted to measure the...

 (433 to 1,447 kW).

PT6A-6

"Small" engine of 525 equivalent shaft horsepower (eshp) and 500 shaft horsepower (shp)

PT6A-11

"Small" engine of 528 eshp and 500 shp

PT6A-15AG

"Small" engine optimised for agricultural aircraft of 715 eshp and 680 shp

PT6A-20

"Small" engine of 579 eshp and 550 shp

PT6A-21

"Small" engine of 580 eshp and 550 shp

PT6A-25

"Small" engine of 580 eshp and 550 shp (-25, -25A) or 783 eshp and 750 shp (-25C)

PT6A-27

"Small" engine of 715 eshp and 680 shp

PT6A-28

"Small" engine of 715 eshp and 680 shp

PT6A-29

"Small" engine of 778 eshp and 750 shp

PT6A-34

"Small" engine of 783 eshp and 750 shp

PT6A-35

"Small" engine of 787 eshp and 750 shp

PT6A-36

"Small" engine of 783 eshp and 750 shp

PT6A-38

"Medium" engine of 801 eshp and 750 shp

PT6A-40

"Medium" engine of 749 eshp and 700 shp

PT6A-41

"Medium" engine of 903 eshp and 850 shp

PT6A-42

"Medium" engine of 903 eshp and 850 shp

PT6A-45

"Medium" engine of 1,070 eshp and 1,020 shp

PT6A-50

"Large" engine of 1,022 eshp and 973 shp

PT6A-52

"Large" engine of 898 eshp and 850 shp

PT6A-60

"Large" engine of 1,113 eshp and 1,050 shp (-60, -60A) or 1,081 ehsp and 1,020 shp (-60AG)

PT6A-61

"Large" engine of 902 eshp and 850 shp

PT6A-62

"Large" engine of 1,218 eshp and 950 shp

PT6A-64

"Large" engine of 747 eshp and 700 shp

PT6A-65

"Large" engine of 1,249 eshp and 1,173 shp (-65B, -65R) or 1,298 eshp and 1,220 shp (-65AG, -65AR)

PT6A-66

"Large" engine of 905 eshp and 850 shp (-66, -66A, -66D) or 1,010 eshp and 950 shp (-66B)

PT6A-67

"Large" engine of 1,272 eshp and 1,200 shp (-67, -67A, -67B, -67P), 1,285 eshp and 1,214 shp (-67D), 1,294 eshp and 1,220 shp (-67AF, -67AG, -67R, -67T), or 1,796 eshp and 1,700 shp (-67F)

PT6A-68

"Large" engine of 1,324 eshp and 1,250 shp

PT6A-110

"Small" engine of 502 eshp and 475 shp

PT6A-112

"Small" engine of 528 eshp and 500 shp

PT6A-114

"Small" engine of 632 eshp and 600 shp (-114) or 725 eshp and 675 shp (-114A)

PT6A-116

"Small" engine of 736 eshp and 700 shp

PT6A-121

"Small" engine of 647 eshp and 615 shp

PT6A-135

"Small" engine of 787 eshp and 750 shp

PT6B

The PT6B is a 981 horsepower (732 kW) engine designed for helicopters.

PT6C

The PT6C is a 1600 to 2300 horsepower (1190 to 1720 kW) engine for helicopters and tiltrotors.

PT6D

The PT6D-114A is based on the PT6A-114A. The main difference is the deletion of the second stage

reduction gearing and output shaft, as the engine is intended for integration with a combining gearbox incorporating power turbine governors and a propeller output shaft.
ST6

The ST6 is a variant of the PT6 that was originally developed as a powerplant for the UAC TurboTrain power cars, but later developed as a stationary power generator and auxiliary power unit

Auxiliary power unit

An auxiliary power unit is a device on a vehicle that provides energy for functions other than propulsion. They are commonly found on large aircraft, as well as some large land vehicles.-Function:...

.

ST6B

The ST6B-62 was a 550 bhp (410 kW) version of the PT6 developed for use in the STP-Paxton Turbocar

STP-Paxton Turbocar

The STP-Paxton Turbocar was a racing car, designed by Ken Wallis as the STP entry in the Indianapolis 500.- History :Wallis, a distant relative of famed British engineer Barnes Wallis, had developed a workable plan for harnessing a gas turbine to a race car. He first presented the idea to Dan...

, raced in the 1967 Indianapolis 500

Indianapolis 500

The Indianapolis 500-Mile Race, also known as the Indianapolis 500, the 500 Miles at Indianapolis, the Indy 500 or The 500, is an American automobile race, held annually, typically on the last weekend in May at the Indianapolis Motor Speedway in Speedway, Indiana...

.

STN 6/76

The STN 6/76 was a 500 bhp (370 kW) version of the PT6 developed for use in the Lotus 56

Lotus 56

The Lotus 56 was a racing car, designed by Maurice Philippe as Team Lotus' 1968 entry in the Indianapolis 500, replacing the successful Lotus 38. The Lotus 56 was not based on the STP-Paxton Turbocar that almost won in 1967, but was an entirely new and more advanced design...

, raced in the 1968 Indianapolis 500

Indianapolis 500

The Indianapolis 500-Mile Race, also known as the Indianapolis 500, the 500 Miles at Indianapolis, the Indy 500 or The 500, is an American automobile race, held annually, typically on the last weekend in May at the Indianapolis Motor Speedway in Speedway, Indiana...

 and later in Forumula One races, in 1971.

T74

United States military designation for the PT6A-20/27, used in the Beechcraft U-21.

T101

United States military designation for the T101-CP-100 / PT6A-45R, used in the Shorts 330

Shorts 330

|-See also:-Bibliography:* Barnes C.H. and James Derek N. Shorts Aircraft since 1900. London: Putnam, 1989. ISBN 0-85177-819-4.* Donald, David, ed. The Encyclopedia of Civil Aircraft. London: Aurum, 1999. ISBN 1-85410-642-2....

 and Shorts C-23 Sherpa.

PT6A

• AASI Jetcruzer
  AASI Jetcruzer
  |-External links:****-See also:...
  
  
• Aero Commander 680T (PT6 conversion)
• Aero Ae 270 Ibis
• Air Tractor AT-400
  Air Tractor AT-400
  |- See also :- References :NotesBibliography...
  
  
• Air Tractor AT-501
  Air Tractor AT-501
  |-See also:-External links:*AT-502 in Action at Milford, Nebraska...
  
  
• Air Tractor AT-602
  Air Tractor AT-602
  |-See also:-References:* Jackson, Paul. Jane's All The World's Aircraft 2003–2004. Coulsdon, UK: Jane's Information Group, 2003. ISBN 0-7106-2537-5....
  
  
• Air Tractor AT-802
  Air Tractor AT-802
  |-Specifications :-See also:-References:NotesBibliography* Jackson, Paul. Jane's All The World's Aircraft 2003–2004. Coulsdon, UK: Jane's Information Group, 2003. ISBN 0-7106-2537-5.* Keijsper, Gerard...
  
  
• Antilles Super Goose
  Grumman Goose
  The Grumman G-21 Goose amphibious aircraft was designed as an eight-seat "commuter" plane for businessmen in the Long Island area. The Goose was Grumman’s first monoplane to fly, its first twin-engined aircraft, and its first aircraft to enter commercial airline service...
  
  
• Antonov An-28
  Antonov An-28
  |-See also:-External links:**...
  
  
• Ayres Turbo Thrush
  Ayres Thrush
  -See also:-Bibliography:* Green, William. Aircraft Handbook. London. Macdonald & Co. Ltd., 1964.* Simpson, Rod. The General Aviation Handbook. Midland Publishing. 2005. ISBN 1-85780-222-5....
  
  
• Basler BT-67
  Basler BT-67
  -See also:-External links:* * * * *...
  
  
• Beechcraft 1900
  Beechcraft 1900
  The Beechcraft 1900 is a 19-passenger, pressurized twin-engine turboprop airplane manufactured by the Beechcraft Division of the Raytheon Company . It was designed, and is primarily used, as a regional airliner...
  
  
• Beechcraft Model 99
  Beechcraft Model 99
  |-See also:-External links:*...
  
  
• Beechcraft A36TC Bonanza (turbine conversion)
  Beechcraft Bonanza
  The Beechcraft Bonanza is an American general aviation aircraft introduced in 1947 by The Beech Aircraft Corporation of Wichita, Kansas. , it is still being produced by Hawker Beechcraft, and has been in continuous production longer than any other airplane in history...
  
  
• Beechcraft C-12 Huron
  C-12 Huron
  The C-12 Huron is the military designation for a series of twin-engine turboprop aircraft based on the Beechcraft Super King Air and Beechcraft 1900. C-12 variants are used by the United States Air Force, United States Army, United States Navy and United States Marine Corps...
  
  
• Beechcraft King Air
  Beechcraft King Air
  The Beechcraft King Air family is part of a line of twin-turboprop aircraft produced by the Beech Aircraft Corporation...
  
  
• Beechcraft Lightning
  Beechcraft Lightning
  The Beechcraft Model 38P Lightning was an experimental turboprop aircraft built and tested by Beechcraft in the 1980s.- History :...
  
  
• Beech 18 series (turbine conversion)
  Beechcraft Model 18
  The Beechcraft Model 18, or "Twin Beech", as it is better known, is a 6-11 seat, twin-engine, low-wing, conventional-gear aircraft that was manufactured by the Beech Aircraft Corporation of Wichita, Kansas...
  
  
• Beechcraft Model 87
  Beechcraft King Air
  The Beechcraft King Air family is part of a line of twin-turboprop aircraft produced by the Beech Aircraft Corporation...
  
  
• Beechcraft Model 99
  Beechcraft Model 99
  |-See also:-External links:*...
  
  
• Beechcraft RC-12 Guardrail
  C-12 Huron
  The C-12 Huron is the military designation for a series of twin-engine turboprop aircraft based on the Beechcraft Super King Air and Beechcraft 1900. C-12 variants are used by the United States Air Force, United States Army, United States Navy and United States Marine Corps...
  
  
• Beechcraft RU-21C Ute
  Beechcraft King Air
  The Beechcraft King Air family is part of a line of twin-turboprop aircraft produced by the Beech Aircraft Corporation...
  
  
• Beechcraft Starship
  Beechcraft Starship
  The Beechcraft Starship is a twin-turboprop six- to eight-passenger pressurized business aircraft produced by Beech Aircraft Corporation .-Development:...
  
  
• Beechcraft Super King Air
  Beechcraft Super King Air
  The Beechcraft Super King Air family is part of a line of twin-turboprop aircraft produced by the Beech Aircraft Corporation . The King Air line comprises a number of model series that fall into two families: the Model 90 series, Model 100 series , Model 200 series and Model 300 series...
  
  
• Beechcraft T-6 Texan II
  T-6 Texan II
  The Beechcraft T-6 Texan II is a single-engined turboprop aircraft built by the Raytheon Aircraft Company . Based on the Pilatus PC-9, the T-6 is used by the United States Air Force for basic pilot training and by the United States Navy for Primary and Intermediate Joint Naval Flight Officer and...
  
  
• Beechcraft T-34C Turbo-Mentor
  T-34 Mentor
  The Beechcraft T-34 Mentor is a propeller-driven, single-engined, military trainer aircraft derived from the Beechcraft Model 35 Bonanza. The earlier versions of the T-34, dating from around the late 1940s to the 1950s, were piston-engined. These were eventually succeeded by the upgraded T-34C...
  
  
• Beechcraft T-44 Pegasus
  Beechcraft King Air
  The Beechcraft King Air family is part of a line of twin-turboprop aircraft produced by the Beech Aircraft Corporation...
  
  
• Beriev Be-30K
  Beriev Be-30
  -External links:* *...
  
  
• CASA C-212 series 300P
• Cessna 208 Caravan
  Cessna 208
  The Cessna 208 Caravan is a single turboprop engine, fixed-gear short-haul regional airliner and utility aircraft built in the United States by Cessna. The airplane typically seats nine passengers, with a single person crew, although with a FAR Part 23 waiver, it can seat up to fourteen passengers...
  
  
• Cessna P210N (turbine conversion)
  Cessna 210
  The Cessna 210 Centurion is a six-seat, high-performance, retractable-gear single-engine general aviation aircraft which was first flown in January 1957 and produced by Cessna until 1985.-Design and development:...
  
  
• Cessna 404 Titan (turbine conversion)
  Cessna 404
  |-See also:-External links:* *...
  
  
• Cessna 421C Golden Eagle (turbine conversion)
  Cessna 421
  -See also:-References:NotesBibliography* Taylor, John W.R. . Jane's All The World's Aircraft 1976-77. London:Jane's Yearbooks, 1976. ISBN 0-354-00538-3....
  
  
• Cessna 425 Corsair/Conquest I
  Cessna 425
  |-See also:...
  
  
• Conair Turbo Firecat
  Conair Firecat
  -References:* -External links:*...
  
  
• Conroy Tri-Turbo-Three
  Conroy Tri-Turbo-Three
  The Conroy Tri-Turbo-Three was a Douglas DC-3 fitted with three Pratt & Whitney Canada PT6 engines by Conroy Aircraft; the third engine was mounted on the nose of the aircraft. It first flew on November 2, 1977. The cruise speed of the aircraft was increased to . The engine mounted on the nose...
  
  
• de Havilland Canada DHC-2 Mk. III Turbo Beaver
  De Havilland Canada DHC-2 Beaver
  The de Havilland Canada DHC-2 Beaver is a single-engined, high-wing, propeller-driven, STOL aircraft developed by de Havilland Canada, primarily known as a bush plane. It is used for cargo and passenger hauling, aerial application , and has been widely adopted by armed forces as a utility aircraft...
  
  
• de Havilland Canada DHC-3 Otter (turbine conversions)
  De Havilland Canada DHC-3 Otter
  The de Havilland Canada DHC-3 Otter is a single-engined, high-wing, propeller-driven, STOL aircraft developed by de Havilland Canada. It was conceived to be capable of performing the same roles as the earlier and highly successful Beaver, but was overall a larger aircraft.-Design and...
  
  
• de Havilland Canada DHC-6 Twin Otter
  De Havilland Canada DHC-6 Twin Otter
  The DHC-6 Twin Otter is a Canadian 19-passenger STOL utility aircraft developed by de Havilland Canada and currently produced by Viking Air. The aircraft's fixed tricycle undercarriage, STOL abilities and high rate of climb have made it a successful cargo, regional passenger airliner and MEDEVAC...
  
  
• de Havilland Canada Dash 7
  De Havilland Canada Dash 7
  The de Havilland Canada DHC-7, popularly known as the Dash 7, is a turboprop-powered regional airliner with STOL capabilities. It first flew in 1975 and remained in production until 1988 when the parent company, de Havilland Canada, was purchased by Boeing and was later sold to Bombardier...
  
  
• Dominion UV-23 Scout
  Dominion Skytrader
  -External links:*...
  
  
• Dornier Do 128 Turbo Skyservant
  Dornier Do 28
  The Dornier Do 28 Skyservant is a twin-engine STOL utility aircraft, manufactured by Dornier Flugzeugbau GmbH. It served with the Luftwaffe and Marineflieger and other air forces around the world in the communications and utility role....
  
  
• Dornier Seawings Seastar
  Dornier Seawings Seastar
  |-References:* "Dornier re-invents the Wal...and a Seastar is born". Air International, October 1988, Vol 35 No 4. pp. 184–192.*Taylor, John W. R. Jane's All The World's Aircraft 1988-89. Coulsdon, UK:Jane's Defence Data, 1988...
  
  
• Douglas DC-3 (turbine conversions)
  Douglas DC-3
  The Douglas DC-3 is an American fixed-wing propeller-driven aircraft whose speed and range revolutionized air transport in the 1930s and 1940s. Its lasting impact on the airline industry and World War II makes it one of the most significant transport aircraft ever made...
  
  
• Epic LT Dynasty
• Embraer EMB 110 Bandeirante
  Embraer EMB 110 Bandeirante
  The Embraer EMB 110 Bandeirante is a general purpose 15-21 passenger twin-turboprop light transport aircraft suitable for military and civil duties...
  
  

• Embraer EMB 121 Xingu
  Embraer EMB 121 Xingú
  |-See also:-References:* * Endres, Gunter and Gething, Mike. . Aircraft Recognition Guide, . New York: Harper Collins Publishers. ISBN 0-00-713721-4....
  
  
• Embraer EMB 312 Tucano
  Embraer EMB 312 Tucano
  The Embraer EMB 312 Tucano is a two seat turboprop basic trainer developed in Brazil. The prototype first flew in 1980 and initial production units were delivered in 1983. The Tucano family of aircraft became one of Embraer's first international marketing successes, with 600 units produced...
  
  
• Embraer EMB 314 Super Tucano
  Embraer EMB 314 Super Tucano
  The Embraer EMB 314 Super Tucano, also named ALX or A-29 is a turboprop aircraft designed for light attack, counter insurgency and pilot training missions, incorporating modern avionics and weapons systems. It is currently in service with the air forces of Brazil, Dominican Republic and Colombia,...
  
  
• Frakes Mohawk 298
• Frakes Turbocat
  Grumman Ag Cat
  -See also:-References:* Michell, Simon. Jane's Civil and Military Aircraft Upgrades 1994-95. Coulsdon, UK:Jane's Information Group, 1994. ISBN 0 7106 1208 7.-External links:*...
  
  
• Gulfstream American Hustler 400
  Gulfstream American Hustler
  |-References:* The Illustrated Encyclopedia of Aircraft , 1985, Orbis Publishing, Page 2055-See also:...
  
  
• Grumman Mallard (turbine conversion)
  Grumman Mallard
  |-See also:-References:NotesBibliography* Hotson, Fred W. Grumman Mallard: The Enduring Classic. Scarborough, Ontario: Robin Brass Studio, 2006. ISBN 978-1896941448....
  
  
• Grumman Goose (turbine conversion)
  Grumman Goose
  The Grumman G-21 Goose amphibious aircraft was designed as an eight-seat "commuter" plane for businessmen in the Long Island area. The Goose was Grumman’s first monoplane to fly, its first twin-engined aircraft, and its first aircraft to enter commercial airline service...
  
  
• Harbin Y-12
  Harbin Y-12
  -See also:-Bibliography:* Taylor, John W R. . Jane's All the World's Aircraft 1988-89. Coulsdon, Surrey, UK: Jane's Information Group, 1988. ISBN 07106-0867-5....
  
  
• Helio AU-24 Stallion
• IAI Arava
  IAI Arava
  |-See also:-References:* Cohen, Irvine J. "Arava: Israel's first-born bids for world market". Air Enthusiast International, February 1974, Vol 6, No 2. pp. 55–61, 92–93....
  
  
• IAI Eitan
  IAI Eitan
  |-See also:...
  
  
• JetPROP DLX
  Piper Malibu
  The Piper PA-46 is a family of light aircraft manufactured by Piper Aircraft of the United States. The aircraft is powered by a single engine and has the capacity for one pilot and five passengers...
  
  
• Kestrel JP10
• KAI KT-1
• Let L-410 Turbolet
• Lancair Evolution
  Lancair Evolution
  -External links:****...
  
  
• NAL Saras
• NDN Fieldmaster
• FTS Turbo Firecracker
  NDN Firecracker
  -See also:-Bibliography:*Barnett, Cliff. "". Flight International, 31 March 1984. pp.899-902.*Donald, David .The Encyclopedia of World Aircraft. Leicester, UK:Blitz, 1997. ISBN 1-85605-375-X....
  
  
• PAC 750XL
• PAC Cresco
• Piaggio P.180 Avanti
• Pilatus PC-6/B Turbo-Porter
  Pilatus PC-6
  |-See also:-References:* Lambert, Mark. Jane's All The World's Aircraft 1993–1994. Coulsdon, UK: Jane's Data Division, 1993. ISBN 0 7106 1066 1.* Taylor, John W. R. Janes's All The World's Aircraft 1965–66. London: Sampson Low, Marston & Company, 1965....
  
  
• Pilatus PC-7
  Pilatus PC-7
  The Pilatus PC-7 Turbo Trainer is a low-wing tandem-seat training aircraft, manufactured by Pilatus Aircraft of Switzerland. The aircraft is capable of all basic training functions including aerobatics, instrument, tactical and night flying. It has been selected by more than twenty air forces as...
  
  
• Pilatus PC-9
  Pilatus PC-9
  The Pilatus PC-9 is a single-engine, low-wing tandem-seat turboprop training aircraft manufactured by Pilatus Aircraft of Switzerland.-Design and development:...
  
  
• Pilatus PC-12
  Pilatus PC-12
  The Pilatus PC-12 is a single-engine turboprop passenger and cargo aircraft manufactured by Pilatus Aircraft of Switzerland. The main market for the aircraft is corporate transport and regional airliner operators.-Design and development:...
  
  
• Pilatus PC-21
  Pilatus PC-21
  |-See also:-External links:*http://www.pilatus-aircraft.com*http://www.airforce-technology.com/projects/pc_21**...
  
  
• Piper PA-31P (turbine conversion)
  Piper PA-31 Navajo
  The Piper PA-31 Navajo is a family of cabin-class, twin-engine aircraft designed and built by Piper Aircraft for the general aviation market, most using Lycoming engines. It was also licence-built in a number of Latin American countries. Targeted at small-scale cargo and feeder liner operations and...
  
  
• Piper PA-31T Cheyenne
  Piper PA-31T Cheyenne
  -See also:-References:*Taylor, John W.R. Jane's All The World's Aircraft 1976-77. London:Jane's Yearbooks, 1976, ISBN 0-354-00538-3.-External links:*...
  
  
• Piper PA-42 Cheyenne III
• Piper PA-46-500TP Meridian
  Piper Malibu
  The Piper PA-46 is a family of light aircraft manufactured by Piper Aircraft of the United States. The aircraft is powered by a single engine and has the capacity for one pilot and five passengers...
  
  
• Piper T1040
  Piper PA-31 Navajo
  The Piper PA-31 Navajo is a family of cabin-class, twin-engine aircraft designed and built by Piper Aircraft for the general aviation market, most using Lycoming engines. It was also licence-built in a number of Latin American countries. Targeted at small-scale cargo and feeder liner operations and...
  
  
• PZL-130T Turbo Orlik and PZL-130TC-II Orlik
  PZL-130 Orlik
  -See also :-References :*Lambert, Mark. Jane's All The World's Aircraft 1993-94. Coulsdon, UK:Jane's Data Division, 1993. ISBN 0 7106 1066 1.*"Orlik…A Polish Fledgeling". Air International, October 1985, Vol 29 No 4. pp. 167–172. ISSN 0306-5634....
  
  
• PZL M-18 Dromader (turbine conversion)
  PZL-Mielec M-18 Dromader
  |-See also:-References:*Jackson, Paul. Jane's All The World's Aircraft 2003–2004. Coulsdon, UK: Jane's Information Group, 2003. ISBN 0-7106-2537-5....
  
  
• PZL M28 Skytruck
• Quest Kodiak
  Quest Aircraft
  Quest Aircraft Company is an American aircraft manufacturing company located in Sandpoint, Idaho. Quest was started in 2001 to design and provide aircraft suitable for domestic and international humanitarian applications.-History:...
  
  
• Reims-Cessna F406 Caravan II
• Saunders ST-27/ST-28
  Saunders ST-27
  |-References:NotesBibliography* Gerritsma, Joop. "The Saunders ST-27: A Prop-Jet Commuter Liner by Conversion." Canadian Aviation Historical Society – Journal, Vol. 35, No. 4, Winter 1997....
  
  
• Scaled Composites ATTT
  Scaled Composites ATTT
  The Scaled Composites Model 133-4.62 ATTT, or Advanced Technology Tactical Transport was a technology demonstration project built by Burt Rutan's Scaled Composites in 1986 under contract to DARPA. The aircraft built was a 62% scaled version of a proposed tandem wing STOL transport...
  
  
• Shorts 330
  Shorts 330
  |-See also:-Bibliography:* Barnes C.H. and James Derek N. Shorts Aircraft since 1900. London: Putnam, 1989. ISBN 0-85177-819-4.* Donald, David, ed. The Encyclopedia of Civil Aircraft. London: Aurum, 1999. ISBN 1-85410-642-2....
  
  
• Shorts 360
  Shorts 360
  The Short 360 is a commuter aircraft built by Short Brothers. The Short 360 seats up to 36-39 passengers and was introduced into service in 1981. It is a larger version of the Short 330.-Development:...
  
  
• Short C-23 Sherpa
  C-23 Sherpa
  |-C-23B/C:-See also:-External links:*****...
  
  
• Socata TBM
  Socata TBM
  |-See also:-References:* Jackson, Paul. Jane's All The World's Aircraft 2003–2004. Coulsdon, UK: Jane's Information Group, 2003. ISBN 0 7106 2537 5....
  
  
• Spectrum SA-550
  Spectrum SA-550
  -External links:**...
  
  
• Swearingen SA26-T Merlin IIA
  Swearingen Merlin
  The Swearingen Merlin or the Fairchild Aerospace Merlin is a pressurised, twin turboprop business aircraft first produced by Swearingen Aircraft, and later by Fairchild at a plant in San Antonio, Texas.-Design and development:...
  
  
• TAI Hürkuş
  TAI Hürkuş
  -External links:*...
  
  
• US Aircraft A-67 Dragon

PT6B

• AgustaWestland AW119 Koala
  AgustaWestland AW119
  |-See also:-External links:* *...
  
  
• Changhe Z-8F
  Aérospatiale Super Frelon
  The Aérospatiale SA 321 Super Frelon is a three-engined heavy transport helicopter produced by Aérospatiale of France. The helicopter is still in use in China where the locally produced version is known as the Z-8. "Frelon" is French for hornet....
  
  
• Avicopter AC313
• Lockheed XH-51
  Lockheed XH-51
  -See also:-References:NotesBibliography*Landis, Tony and Jenkins, Dennis R. Lockheed AH-56A Cheyenne - WarbirdTech Volume 27, Specialty Press, 2000. ISBN 1580070272.- External links :* * - All the World's Rotorcraft...
  
  
• Sikorsky S-76
  Sikorsky S-76
  The Sikorsky S-76 is an American medium-size commercial utility helicopter. The S-76 is powered by two turboshaft engines, which drive both the main and tail rotors, each with four blades...
  
  B
• Westland Lynx 606
  Westland Lynx
  The Westland Lynx is a British multi-purpose military helicopter designed and built by Westland Helicopters at its factory in Yeovil. Originally intended as a utility craft for both civil and naval usage, military interest led to the development of both battlefield and naval variants...
  
  

PT6C

• AgustaWestland AW139
  AgustaWestland AW139
  The AgustaWestland AW139 is a 15-seat medium sized twin-engined helicopter manufactured by AgustaWestland. Originally designed and developed jointly by Agusta and Bell Helicopters and marketed as the Agusta-Bell AB139, it was redesignated the AW139 when Bell withdrew from the project...
  
  
• Bell/Agusta BA609
  Bell/Agusta BA609
  The AgustaWestland AW609, formerly the Bell/Agusta BA609, is a civil twin-engined tiltrotor VTOL aircraft with a configuration similar to the Bell-Boeing V-22 Osprey.-Design and development:...
  
  
• UH-1 Global Eagle upgrade
• Eurocopter EC175
  Eurocopter EC175
  The Eurocopter EC175 is a 7-ton class medium utility helicopter being developed by Eurocopter and AVIC. Formally launched at Heli-Expo in Houston on 24 February 2008, the EC175 is due to be certified in 2011, with Eurocopter aiming to sell approximately 800 to 1,000 EC175s over 20...
  
  /Avicopter Z-15

Specifications

Name	PT6A-11AG	PT6A-50 !! PT6A-68C !! PT6B-36A !! PT6B-37A !! PT6C-67B !! PT6C-67C !! PT6C-67E !! PT6T-6B
Diameter	483 mm	483 mm	483 mm	825 × 495 mm	495 mm	584 mm	584 mm	584 mm	825 × 1105 mm
Length	1.58 m	1.73 m	1.83 m	1.5 m	1.63 m	1.50 m	1.50 m	1.50 m	1.67 m
Dry weight		193 kg		169 kg	172 kg
Power	550 kW (748 PS)	705 kW (958 PS)	1175 kW (1600 PS)	732 kW (995 PS)	747 kW (1015 PS)	895 kW (1217 PS)	1252 kW (1702 PS)	1324 kW (1800 PS)	1469 kW (2000 PS)
Specific fuel consumption		353 g/ekWh		0.581 lbs/shph	0.584 lbs/shph				0,602 lbs/shph

See also

External links

• Pratt & Whitney Canada PT6A page
• Pratt & Whitney Canada PT6B page
• Pratt & Whitney Canada PT6C page
• Pratt & Whitney Canada PT6T page