PT6A Turboprop Engine Demonstrated & The Types of PT6-A

The PT6A family is a series of free turbine turboprop engine providing 500 to 1,940 SHP.

BERLIN, GERMANY – MAY 21, 2014: Turboprop engine Pratt & Whitney Canada PT6A-65B closeup of a military transport aircraft PZL M28B Bryza. Polish Air Force. Exhibition ILA Berlin Air Show 2014

Covington is a Pratt & Whitney Canada certified Distributor and Designated Overhaul Facility (DDOF) for the following PT6A models:

-41 -66A
-11 -42 -66B
-20 -42A -66D
-20A -45 -67
-20B -45A -67A
-21 -45B -67AF
-25 -45R -67B
-25A -50 -67D
-25C -52 -67F
-25E -60A -67P
-27 -61 -67R
-28 -62 -110
-34 -64 -112
-34B -65AR -114
-35 -65B -114A
-36 -65R -116
-38 -66 -121

Here is a great demonstration of how the PT6A works

Below is a list of all of the PT6A engines for reference.

variant equivalent shaft applications[24]
shaft horsepower
PT6A-6 525 eshp 500 shp
PT6A-11AG 528 eshp 500 shp Air Tractor AT-400
Schweizer Ag-Cat G-164B Turbine
PT6A-15AG 715 eshp 680 shp Air Tractor AT-400
Air Tractor AT-501
Frakes Turbocat
Schweizer Ag-Cat G-164B Turbine
PT6A-20 579 eshp 550 shp
PT6A-21 580 eshp 550 shp Beechcraft King Air C90A/B/SE
Beechcraft Bonanza (turbine conversion)
Evektor EV-55 Outback
PT6A-25, -25A 580 eshp 550 shp
PT6A-25C 783 eshp 750 shp Embraer EMB 312 Tucano
Pilatus PC-7/PC-7 MKII Turbo Trainer
PZL-130 Orlik / TC-II Turbo-Orlik
PT6A-27 715 eshp 680 shp Beechcraft Model 99A, B99
de Havilland Canada DHC-6 Twin Otter 300
Harbin Y-12
Embraer EMB 110 Bandeirante
Let L-410 Turbolet
Pilatus PC-6/B Turbo-Porter
PT6A-28 715 eshp 680 shp
PT6A-29 778 eshp 750 shp
PT6A-34 783 eshp 750 shp Embraer EMB 110 Bandeirante/111
Embraer EMB 821 Carajá
Grumman Mallard (turbine conversion)
Quest Kodiak
Vazar Dash 3 Turbine Otter
Viking DHC-6 Twin Otter 400
PT6A-34AG 783 eshp 750 shp Air Tractor AT-502B
Frakes/Grumman Turbo-Cat Model A/B/C
Pacific Aerospace 750XL
PZL-Okecie PZL-106 Turbo Kruk
Schweizer Ag-Cat G-164B/D Turbine
Thrush Model 510P
PT6A-35 787 eshp 750 shp Blue 35
PT6A-36 783 eshp 750 shp
PT6A-38 801 eshp 750 shp
PT6A-110 502 eshp 475 shp
PT6A-112 528 eshp 500 shp
PT6A-114 632 eshp 600 shp
PT6A-114A 725 eshp 675 shp Cessna 208 Caravan
PT6A-116 736 eshp 700 shp
PT6A-121 647 eshp 615 shp
PT6A-135 787 eshp 750 shp Beechcraft King Air F90-1/C90GT/C90GTi/C90GTx
Blackhawk XP135A Cheyenne Series
Blackhawk XP135A Conquest I
Blackhawk XP135A King Air 90 Series
Cessna Conquest I
Lancair Evolution
Silverhawk 135/StandardAero C90/E90
StandardAero Cheyenne Series
StandardAero King Air F90
T-G Aviation Super Cheyenne
Vazar Dash 3 Turbine Otter
variant equivalent shaft applications[24]
shaft horsepower
PT6A-40 749 eshp 700 shp
PT6A-41 903 eshp 850 shp Beechcraft King Air 200/B200
Piper Cheyenne III/IIIA
PT6A-42 903 eshp 850 shp Beechcraft C-12 HuronF
Beechcraft King Air 200/B200
Blackhawk XP42 King Air 200
StandardAero King Air 200
Blackhawk XP42A C-208 Caravan Series (-42A)
Piper Meridian
PT6A-45 1070 eshp 1020 shp
PT6A-50 1022 eshp 973 shp
PT6A-52 898 eshp 850 shp Beechcraft King Air B200GT/250
Blackhawk XP52 King Air 200/B200
Enhanced Aero B200GTO
StandardAero King Air 200/B200
PT6A-60, -60A 1113 eshp 1050 shp Beechcraft Super King Air 300/350
PT6A-60AG 1081 ehsp 1020 shp Air Tractor AT-602
Ayres Thrush 550P/660
PT6A-61 902 eshp 850 shp
PT6A-62 950shp[25] KAI KT-1/KO-1
Pilatus PC-9 Turbo Trainer
variant equivalent shaft applications[24]
shaft horsepower
PT6A-64 747 eshp 700 shp EADS Socata TBM 700
PT6A-65B, -65R[23] 1249 eshp 1173 shp Beechcraft 1900/1900C
Polish Aviation Factory M28 Skytruck
PT6A-65AG, -65AR[23] 1298 eshp 1220 shp Air Tractor AT-602
Air Tractor AT-802/802A/802AF/802F
Ayres Thrush 660/710P
PT6A-66, -66A, -66D 905 eshp 850 shp National Aerospace Laboratories SARAS
Piaggio P.180 Avanti
Ibis Ae270 HP (-66A)
EADS Socata TBM 850
PT6A-66B 1010 eshp 950 shp Piaggio P180 Avanti II
PT6A-67, -67A, -67B, -67P 1272 eshp 1200 shp Beechcraft Starship
Epic LT
IAI Heron TP
Pilatus PC-12 (-67B)
Pilatus PC-12NG (-67P)
PT6A-67D 1285 eshp 1214 shp Beechcraft 1900D
PT6A-67AF, -67AG, -67R, -67T 1294 eshp 1220 shp Air Tractor AT-802/802A/802AF/802F (-67AG)
Ayres Thrush 710P (-67AG)
Basler Turbo BT-67 (-67R)
Shorts 360 / 360-300 (-67R)
PT6A-67F 1796 eshp 1700 shp Air Tractor AT-802/802A/802AF/802F
PT6A-68 1324 eshp 1250 shp T-6A Texan II
Pilatus PC-21 (-68B)
Embraer EMB-314 Super Tucano (-68C)


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