The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 5, 2026

Pratt & Whitney R1340 series

1,230 aircraft on the U.S. register carry a Pratt & Whitney R1340 series engine, rated at about 600 horsepower. The North American AT-6 Texan is the model most often fitted with it (183 aircraft). The aircraft carrying it were built between 1933 and 2022.

The FAA records engines by code, usually at the level of a series ("O-320 series") rather than the exact variant; this page gathers every FAA code that reads as Pratt & Whitney R1340 series. FAA spelling: R1340 SERIES.

Fitted to model families

North American AT-6 Texan183Grumman Acft Eng Cor-Schweizer G-164149North American SNJ-5 Texan (Navy)118North American T-6 Texan92Air Tractor Inc AT-30166Aero Commander S255Rockwell International S-254Air Tractor Inc AT-40152Ayres Corporation S-248Canadian Car & Foundry HARVARD MK IV43Schweizer Aircraft Corp G-16441North American SNJ-436

North American AT-6 Texan · Grumman Acft Eng Cor-Schweizer G-164 · North American SNJ-5 Texan (Navy) · North American T-6 Texan · Air Tractor Inc AT-301 · Aero Commander S2 · Rockwell International S-2 · Air Tractor Inc AT-401 · Ayres Corporation S-2 · Canadian Car & Foundry HARVARD MK IV

Where they are owner's state

California174Texas154Washington52North Dakota50Delaware46Minnesota43Nebraska39Florida36Colorado34Illinois33

Kind of aircraft

Piston singles1,136 (92%)Turboprops75 (6%)Piston twins17 (1%)Helicopters2 (0.2%)

When the aircraft were built by decade

078155232310192019301940195019601970198019902000201012020

What the FAA has certified, ordered and been told about the Pratt & Whitney R1340 series the component layer

No FAA order in the current files names this engine series. Operators and repair shops have filed 58 failure reports with the FAA since 1995, 15 of them in the last ten years.

Failure reports 58 since · what operators and shops told the FAA

0247995000612118

Parts most often reported as the reports name them

Cylinder6Engine4Cylinder Head3Exhaust Valve3Nut3Attach Angle2Roller2Strut2Angle1Battery1

Latest reports

2018-08-02Throttle Arm: worn
2015-05-19Cam: worn
2014-08-24Cylinder: fractured
2014-07-28Engine: power loss
2013-04-24Bearing: failed

Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.

Connections how this engine series links to the rest of the register

Fitted to
Where they are
Biggest operators
Airworthiness

These connections as data: /graph/engine/pratt-whitney-r1340-series.json · about the eFlight graph.

Aircraft newest certificates first · 1,230

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N60734 North American
SNJ-2
Fixed-wing, single engine Chris Thomas Airshows LLC
Virginia Beach, Virginia
Standard 2023-09-23 ValidFAA registration status code V: Valid registration. All codes
N3676F North American
SNJ-5
Fixed-wing, single engine Lmn Aircraft Leasing LLC
Sellersburg, Indiana
Standard 2023-09-22 ValidFAA registration status code V: Valid registration. All codes
N7412C North American
SNJ-4
Fixed-wing, single engine Hevle Aviation LLC
Bakersfield, California
Standard 2023-09-20 ValidFAA registration status code V: Valid registration. All codes
N7638C North American/Victoria Mnt Lt
AT-6A
Fixed-wing, single engine Lindemann Flying Service LLC
Valley City, North Dakota
Standard 2023-09-13 ValidFAA registration status code V: Valid registration. All codes
N645DS North American
SNJ-5
Fixed-wing, single engine Permian Motorsports LLC
Missoula, Montana
Standard 2023-09-09 ValidFAA registration status code V: Valid registration. All codes
N6732K Grumman Acft Eng Cor-Schweizer
G-164C
Fixed-wing, single engine Porter Flyling Service INC DBA
Durham, California
Restricted 2023-08-21 ValidFAA registration status code V: Valid registration. All codes
N3770P North American
SNJ-5
Fixed-wing, single engine Tulsa Warbirds Foundation INC
Tulsa, Oklahoma
Standard 2023-08-19 ValidFAA registration status code V: Valid registration. All codes
N21JD North American
SNJ-5
Fixed-wing, single engine Ace Maker Aviation LLC
San Rafael, California
Standard 2023-08-16 ValidFAA registration status code V: Valid registration. All codes
N7314Q Air Tractor Inc
AT-501
Fixed-wing, single engine Tall Towers AG Service INC
Page, North Dakota
Experimental 2023-08-10 ValidFAA registration status code V: Valid registration. All codes
N4010H Ayres Corporation
S2R-600
Fixed-wing, single engine Crop Doctor Aviation INC
Hill City, Kansas
Restricted 2023-08-04 ValidFAA registration status code V: Valid registration. All codes
N3687F North American
SNJ-5
Fixed-wing, single engine Gobbletec LLC DBA
Fort Washington, Maryland
Standard 2023-07-27 ValidFAA registration status code V: Valid registration. All codes
N1607S Snow
S2C
Fixed-wing, single engine Individual owner
Texas
Restricted 2023-07-22 ValidFAA registration status code V: Valid registration. All codes
N5632V North American
T-6G
Fixed-wing, single engine Stallion 51 T6 LLC
Kissimmee, Florida
Standard 2023-07-01 ValidFAA registration status code V: Valid registration. All codes
N23647 Air Tractor Inc
AT-301
Fixed-wing, single engine Marlow Aviation LLC
Lamoni, Iowa
Restricted 2023-06-28 ValidFAA registration status code V: Valid registration. All codes
N9694 Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine 307 Aviation LLC
Worland, Wyoming
Restricted 2023-06-28 ValidFAA registration status code V: Valid registration. All codes
N842WA Schweizer Aircraft Corp
G-164B
Fixed-wing, single engine Haley Flying Service INC
Tracy, California
Restricted 2023-06-21 ValidFAA registration status code V: Valid registration. All codes
N95WM North American
AT-6D
Fixed-wing, single engine Co-owned owner
California
Standard 2023-06-21 ValidFAA registration status code V: Valid registration. All codes
N9035Z North American
T-6G
Fixed-wing, single engine Pilot Maker LLC
Carmel Valley, California
Standard 2023-06-20 ValidFAA registration status code V: Valid registration. All codes
N14166 North American
AT-6D
Fixed-wing, single engine National Wasp Wwii Museum
Sweetwater, Texas
Standard 2023-06-11 ValidFAA registration status code V: Valid registration. All codes
N69WN Air Tractor Inc
AT-301
Fixed-wing, single engine AG Air Services LLC
Walla Walla, Washington
Restricted 2023-06-06 ValidFAA registration status code V: Valid registration. All codes
N446CM North American
SNJ-5
Fixed-wing, single engine Individual owner
New Jersey
Standard 2023-05-25 ValidFAA registration status code V: Valid registration. All codes
N2317Z Air Tractor Inc
AT-301
Fixed-wing, single engine Individual owner
Minnesota
Restricted 2023-05-24 ValidFAA registration status code V: Valid registration. All codes
N116SE North American
T-6G
Fixed-wing, single engine Co-owned owner
California
Standard 2023-05-22 ValidFAA registration status code V: Valid registration. All codes
N9806C North American
AT-6F
Fixed-wing, single engine Individual owner
Texas
Standard 2023-05-22 ValidFAA registration status code V: Valid registration. All codes
N48405 Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Individual owner
North Dakota
Restricted 2023-05-17 ValidFAA registration status code V: Valid registration. All codes
N3647X Rockwell International
S-2R
Fixed-wing, single engine Sheffield Flying Service LLC
Iron City, Georgia
Restricted 2023-05-15 ValidFAA registration status code V: Valid registration. All codes
N8157K Gulfstream-Schweizer A/C Corp
GULFSTREAM AM G-164B
Fixed-wing, single engine Storm Flying Service LLC
David City, Nebraska
Restricted 2023-05-12 ValidFAA registration status code V: Valid registration. All codes
N40103 Ayres Corporation
S2R-600
Fixed-wing, single engine Doug Jackson Enterprises INC
Benson, Minnesota
Restricted 2023-05-10 ValidFAA registration status code V: Valid registration. All codes
N9646A Rockwell International
S-2R
Fixed-wing, single engine Doug Jackson Enterprises INC
Benson, Minnesota
Restricted 2023-05-10 ValidFAA registration status code V: Valid registration. All codes
N32SZ North American
T-6G
Fixed-wing, single engine Sound of Freedom LLC
Boerne, Texas
Standard 2023-05-08 ValidFAA registration status code V: Valid registration. All codes
N1284 North American
T-6G
Fixed-wing, single engine Nelson Aero Service LLC
Aurora, Colorado
Standard 2023-04-30 ValidFAA registration status code V: Valid registration. All codes
N5542V North American
T-6G
Fixed-wing, single engine N5542V LLC
Anacortes, Washington
Standard 2023-04-21 ValidFAA registration status code V: Valid registration. All codes
N4140A North American
SNJ-4
Fixed-wing, single engine Co-owned owner
Maryland
Standard 2023-04-19 ValidFAA registration status code V: Valid registration. All codes
N684RC North American
AT-6C
Fixed-wing, single engine Cremante LLC
Carson City, Nevada
Standard 2023-04-14 ValidFAA registration status code V: Valid registration. All codes
N850VA Ayres Corporation
S2R-R1340
Fixed-wing, single engine Valburg Aerial Spraying INC
White River, South Dakota
Multiple 2023-04-14 ValidFAA registration status code V: Valid registration. All codes
N8886S Air Tractor Inc
AT-301
Fixed-wing, single engine Individual owner
Washington
Restricted 2023-04-13 ValidFAA registration status code V: Valid registration. All codes
N7502C Schweizer Aircraft Corp
G-164B
Fixed-wing, single engine Fountain Flying Service Genesee LLC
Genesee, Idaho
Restricted 2023-04-11 ValidFAA registration status code V: Valid registration. All codes
N8223E North American
SNJ-5
Fixed-wing, single engine Veruca Salt LLC
Washington, Texas
Standard 2023-04-06 ValidFAA registration status code V: Valid registration. All codes
N331LB Rockwell International
S-2R
Fixed-wing, single engine Jb AG Service LLC
Colstrip, Montana
Experimental 2023-04-04 ValidFAA registration status code V: Valid registration. All codes
N8486K Schweizer Aircraft Corp
G-164B
Fixed-wing, single engine Basin Aviation
Rio Oso, California
Restricted 2023-04-01 ValidFAA registration status code V: Valid registration. All codes
N8213E North American
SNJ-5
Fixed-wing, single engine Individual owner
Michigan
Standard 2023-03-30 ValidFAA registration status code V: Valid registration. All codes
N3125S Dehavilland
DHC-3
Fixed-wing, single engine Mountain Pt Leasing LLC
Ketchikan, Alaska
Standard 2023-03-28 ValidFAA registration status code V: Valid registration. All codes
N8335H North American
T-6G
Fixed-wing, single engine Forgotten Heroes Foundation
Chesapeake, Virginia
Standard 2023-03-28 ValidFAA registration status code V: Valid registration. All codes
N7814C North American
T-6G
Fixed-wing, single engine J Galt Aircraft LLC
Eagle, Idaho
Experimental 2023-03-20 ValidFAA registration status code V: Valid registration. All codes
N161Y Halpern Stephen
WEDELL WILLIAMS
Fixed-wing, single engine Wedell Williams Memorial Foundation INC
Patterson, Louisiana
Experimental 2023-03-16 ValidFAA registration status code V: Valid registration. All codes
N51440 Boeing
A75
Fixed-wing, single engine Individual owner
Texas
Restricted 2023-03-10 ValidFAA registration status code V: Valid registration. All codes
N7502B Schweizer Aircraft Corp
G-164B
Fixed-wing, single engine Cw Equipment Rentals INC
Biggs, California
Restricted 2023-03-09 ValidFAA registration status code V: Valid registration. All codes
N8021R North American
AT-6C
Fixed-wing, single engine N8021R LLC
Scottsdale, Arizona
Standard 2023-03-03 ValidFAA registration status code V: Valid registration. All codes
N86WW North American
SNJ-4
Fixed-wing, single engine Condor Squadron Officers & Airmens Assoc INC
Van Nuys, California
Standard 2023-03-03 ValidFAA registration status code V: Valid registration. All codes
N9159A Air Tractor Inc
AT-401
Fixed-wing, single engine Individual owner
Texas
Restricted 2023-03-02 ValidFAA registration status code V: Valid registration. All codes
N1004B Air Tractor Inc
AT-501
Fixed-wing, single engine Co-owned owner
Arkansas
Restricted 2023-03-01 ValidFAA registration status code V: Valid registration. All codes
N705Y Grumman
G-164
Fixed-wing, single engine Badgley Aviation Services LLC
Stanley, North Dakota
Restricted 2023-02-21 ValidFAA registration status code V: Valid registration. All codes
N48TT Nunn
NORTH AMERICAN SNJ-4
Fixed-wing, single engine Heritage Aircraft LLC
Smithfield, North Carolina
Experimental 2023-02-11 ValidFAA registration status code V: Valid registration. All codes
N7754 Canadian Car & Foundry
HARVARD MK IV
Fixed-wing, single engine Individual owner
California
Experimental 2023-02-06 ValidFAA registration status code V: Valid registration. All codes
N9705N North American
T-6G
Fixed-wing, single engine Ryan Recruit LLC
Amarillo, Texas
Standard 2023-02-04 ValidFAA registration status code V: Valid registration. All codes
N101FT North American
T-6G
Fixed-wing, single engine Individual owner
Florida
Standard 2023-02-03 ValidFAA registration status code V: Valid registration. All codes
N8595S Air Tractor Inc
AT-301
Fixed-wing, single engine Headwaters Flying Service LLC
Three Forks, Montana
Restricted 2023-02-02 ValidFAA registration status code V: Valid registration. All codes
N4236X Rockwell International
S-2R
Fixed-wing, single engine Doug Jackson Enterprises INC
Benson, Minnesota
Restricted 2023-01-25 ValidFAA registration status code V: Valid registration. All codes
N566TX North American
SNJ-5
Fixed-wing, single engine Lone Star Flight Museum
Houston, Texas
Standard 2023-01-23 ValidFAA registration status code V: Valid registration. All codes
N49961 North American
AT-6D
Fixed-wing, single engine Texas Warbirds LLC
Lewes, Delaware
Standard 2023-01-22 ValidFAA registration status code V: Valid registration. All codes
N514FS Canadian Car & Foundry
HARVARD MK IV
Fixed-wing, single engine Dakota Aircraft INC
Pierre, South Dakota
Experimental 2023-01-22 ValidFAA registration status code V: Valid registration. All codes
N7204 Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Richter Aviation INC
Maxwell, California
Restricted 2023-01-20 ValidFAA registration status code V: Valid registration. All codes
N4PC North American
AT6J
Fixed-wing, single engine Aerospace Trust Management LLC
Wilmington, Delaware
Standard 2023-01-17 ValidFAA registration status code V: Valid registration. All codes
N665K Stearman Aircraft
4-C
Fixed-wing, single engine Individual owner
Washington
Restricted 2023-01-04 ValidFAA registration status code V: Valid registration. All codes
N7205 Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Dodson International Parts INC
Rantoul, Kansas
Restricted 2023-01-01 ValidFAA registration status code V: Valid registration. All codes
N4745C North American
SNJ-5
Fixed-wing, single engine Xtreme Attitudes LLC
Raleigh, North Carolina
Standard 2022-12-30 ValidFAA registration status code V: Valid registration. All codes
N3299Y Ayres Corporation
S2R-R1340
Fixed-wing, single engine Rustys Flying Service
D Hanis, Texas
Restricted 2022-12-26 ValidFAA registration status code V: Valid registration. All codes
N418BB North American
AT-6D
Fixed-wing, single engine Diamond Aviation LLC
Jackson, Mississippi
Standard 2022-12-26 ValidFAA registration status code V: Valid registration. All codes
N5070S Air Tractor Inc
AT-301
Fixed-wing, single engine Individual owner
South Dakota
Restricted 2022-12-22 ValidFAA registration status code V: Valid registration. All codes
N52494 Canadian Car & Foundry
HARVARD MK IV
Fixed-wing, single engine Navy Flight Trainer LLC
Salem, South Carolina
Experimental 2022-12-17 ValidFAA registration status code V: Valid registration. All codes
N4556W Air Tractor Inc
AT-401
Fixed-wing, single engine Versaair Services LLC
Overland Park, Kansas
Restricted 2022-11-29 ValidFAA registration status code V: Valid registration. All codes
N4954X Rockwell International
S-2R
Fixed-wing, single engine Spray Aero LLC
Minneola, Kansas
Restricted 2022-11-26 ValidFAA registration status code V: Valid registration. All codes
N777HL North American
SNJ-5
Fixed-wing, single engine Individual owner
Oregon
Standard 2022-11-26 ValidFAA registration status code V: Valid registration. All codes
N87H North American
AT-6D
Fixed-wing, single engine Individual owner
California
Standard 2022-11-12 ValidFAA registration status code V: Valid registration. All codes
N82583 North American
AT-6F
Fixed-wing, single engine Individual owner
California
Standard 2022-11-11 ValidFAA registration status code V: Valid registration. All codes
N9115A Noorduyn Aviation Ltd
HARVARD II
Fixed-wing, single engine Individual owner
Illinois
Experimental 2022-10-20 ValidFAA registration status code V: Valid registration. All codes
N5322G Dehavilland
DHC-3
Fixed-wing, single engine Individual owner
Alaska
Standard 2022-10-15 ValidFAA registration status code V: Valid registration. All codes
N5632F North American
SNJ-5C
Fixed-wing, single engine Anglewood Aviation LLC
Chicago, Illinois
Standard 2022-10-11 ValidFAA registration status code V: Valid registration. All codes
N459JP Canadian Car & Foundry
HARVARD MK IV
Fixed-wing, single engine Individual owner
North Dakota
Experimental 2022-10-04 ValidFAA registration status code V: Valid registration. All codes
N5532X Aero Commander
S2R
Fixed-wing, single engine Johnson Airspray INC
Argyle, Minnesota
Restricted 2022-09-27 ValidFAA registration status code V: Valid registration. All codes
N119DP North American
SNJ-4
Fixed-wing, single engine Warbird Adventures LLC
Casa Grande, Arizona
Multiple 2022-09-24 ValidFAA registration status code V: Valid registration. All codes
N836G North American
AT-6G
Fixed-wing, single engine Co-owned owner
Mississippi
Experimental 2022-09-24 ValidFAA registration status code V: Valid registration. All codes
N8441V Rockwell International
S-2R
Fixed-wing, single engine Classic Aero Crop Protection INC
Hutchinson, Minnesota
Restricted 2022-09-24 ValidFAA registration status code V: Valid registration. All codes
N5199V North American
SNJ-5
Fixed-wing, single engine V2 Aviation LLC
Mishawaka, Indiana
Standard 2022-09-12 ValidFAA registration status code V: Valid registration. All codes
N6984C North American
AT-6D
Fixed-wing, single engine Bob Hoover Academy
Salinas, California
Standard 2022-09-09 ValidFAA registration status code V: Valid registration. All codes
N5287N North American
SNJ-4
Fixed-wing, single engine Individual owner
Illinois
Standard 2022-09-08 ValidFAA registration status code V: Valid registration. All codes
N8930Q Ayres Corporation
S-2R
Fixed-wing, single engine Planes & Parts INC
Weston, Florida
Restricted 2022-08-29 ValidFAA registration status code V: Valid registration. All codes
N7000S North American
AT-6G
Fixed-wing, single engine Co-owned owner
Ohio
Standard 2022-08-27 ValidFAA registration status code V: Valid registration. All codes
N8014Z Ag-Cat Corporation
G-164B
Fixed-wing, single engine Bank of Utah Trustee
Salt Lake City, Utah
Restricted 2022-08-22 ValidFAA registration status code V: Valid registration. All codes
N36265 Schweizer Aircraft Corp
G-164B
Fixed-wing, single engine Sutter Butte Dusters INC
Live Oak, California
Restricted 2022-08-20 ValidFAA registration status code V: Valid registration. All codes
N5662X Aero Commander
S2R
Fixed-wing, single engine Individual owner
Delaware
Restricted 2022-08-06 ValidFAA registration status code V: Valid registration. All codes
N3682F North American
SNJ-5B
Fixed-wing, single engine Individual owner
Arizona
Standard 2022-08-04 ValidFAA registration status code V: Valid registration. All codes
N7618C North American
AT-6G
Fixed-wing, single engine North American Aircraft LLC
Gallatin, Tennessee
Standard 2022-07-30 ValidFAA registration status code V: Valid registration. All codes
N43WB North American
SNJ-5
Fixed-wing, single engine Eastern Aviation Fuels INC
New Bern, North Carolina
Standard 2022-07-27 ValidFAA registration status code V: Valid registration. All codes
N34955 Rockwell International
S-2R
Fixed-wing, single engine Scott Cattle Company LLC
Burlington, Colorado
Restricted 2022-07-07 ValidFAA registration status code V: Valid registration. All codes
N3167P Air Tractor Inc
AT-301
Fixed-wing, single engine Marlow Aviation LLC
Lamoni, Iowa
Restricted 2022-05-21 ValidFAA registration status code V: Valid registration. All codes
N100XK North American
AT-6G
Fixed-wing, single engine Corsair N13377A LLC
Beaverton, Oregon
Standard 2022-05-18 ValidFAA registration status code V: Valid registration. All codes
N378HF Canadian Car & Foundry
HARVARD MK IV
Fixed-wing, single engine Individual owner
Idaho
Experimental 2022-05-17 ValidFAA registration status code V: Valid registration. All codes
N3623K North American
T-6G
Fixed-wing, single engine Warhawk Air Museum INC
Nampa, Idaho
Standard 2022-05-11 ValidFAA registration status code V: Valid registration. All codes
N3654N Air Tractor Inc
AT-301
Fixed-wing, single engine Country Air Service INC
Hecla, South Dakota
Restricted 2022-04-29 ValidFAA registration status code V: Valid registration. All codes
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Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 5, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.