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

Pratt & Whitney R-985 series

1,594 aircraft on the U.S. register carry a Pratt & Whitney R-985 series engine, rated at about 450 horsepower. The Boeing A75 Stearman Kaydet is the model most often fitted with it (236 aircraft). The aircraft carrying it were built between 1929 and 2013.

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 R-985 series. FAA spelling: R-985 SERIES.

Fitted to model families

Boeing A75 Stearman Kaydet236Dehavilland DHC-2133Beechcraft D17106Boeing E75 Stearman Kaydet105Grumman Acft Eng Cor-Schweizer G-16498Howard Aircraft DGA-1572Dehavilland BEAVER DHC-2 MK.165Naval Aircraft Factory N353Consolidated Vultee BT-1353Beechcraft E1851Beechcraft C-4549Boeing B75 Stearman Kaydet48

Boeing A75 Stearman Kaydet · Dehavilland DHC-2 · Beechcraft D17 · Boeing E75 Stearman Kaydet · Grumman Acft Eng Cor-Schweizer G-164 · Howard Aircraft DGA-15 · Dehavilland BEAVER DHC-2 MK.1 · Naval Aircraft Factory N3 · Consolidated Vultee BT-13 · Beechcraft E18

Where they are owner's state

Alaska161Texas158California146Washington85Florida66Delaware62Minnesota49Oregon40Missouri39Colorado37

Kind of aircraft

Piston singles1,291 (81%)Piston twins262 (16%)Turboprops40 (3%)Helicopters1 (0.1%)

When the aircraft were built by decade

015631146662219201930194019501960197019801990200022010

What the FAA has certified, ordered and been told about the Pratt & Whitney R-985 series the component layer

No FAA order in the current files names this engine series. Operators and repair shops have filed 80 failure reports with the FAA since 1995, 23 of them in the last ten years.

Failure reports 80 since · what operators and shops told the FAA

024689500051015217

Parts most often reported as the reports name them

Cylinder8Engine6Bulkhead3Piston3Pump3Spar3Bearing2Bolt2Carburetor2Control Cable2

Latest reports

2017-10-06Bearing: failed
2017-07-20Drag Link: damaged
2016-07-20Pushrod: broken
2015-08-18Fitting: corroded
2015-04-03Balance Weight: loose

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-r-985-series.json · about the eFlight graph.

Aircraft newest certificates first · 1,594

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N667K Stearman Aircraft
4E
Fixed-wing, single engine Individual owner
Washington
Standard 2023-01-04 ValidFAA registration status code V: Valid registration. All codes
N69626 Boeing
B75N1
Fixed-wing, single engine Co-owned owner
North Dakota
Standard 2023-01-02 ValidFAA registration status code V: Valid registration. All codes
N444EF Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Katmai Air LLC
Anchorage, Alaska
Standard 2022-12-29 ValidFAA registration status code V: Valid registration. All codes
N16CL Beech
E18S
Fixed-wing, multi-engine Big Sky Aviation
Wilmington, Delaware
Standard 2022-12-28 ValidFAA registration status code V: Valid registration. All codes
N33JP Beech
D18S
Fixed-wing, multi-engine Scenic Flight Adventures LLC
Coeur D Alene, Idaho
Standard 2022-12-26 ValidFAA registration status code V: Valid registration. All codes
N18207 Howard Aircraft
DGA-11
Fixed-wing, single engine Mid America Flight Museum
Mount Pleasant, Texas
Standard 2022-12-15 ValidFAA registration status code V: Valid registration. All codes
N826BT Cons Vultee/Basinger
BT-13A
Fixed-wing, single engine Aero Avanti LLC
Riverview, Florida
Standard 2022-12-09 ValidFAA registration status code V: Valid registration. All codes
N450RE Cessna
195A
Fixed-wing, single engine Individual owner
Arizona
Experimental 2022-12-08 ValidFAA registration status code V: Valid registration. All codes
N565TM Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Sea-Air LTD
Aurora, Oregon
Standard 2022-12-08 ValidFAA registration status code V: Valid registration. All codes
N6251C Beech
AT-11
Fixed-wing, multi-engine Allen Aviation INC
Star, North Carolina
Standard 2022-12-01 ValidFAA registration status code V: Valid registration. All codes
N79VV Consolidated Vultee
BT-13A
Fixed-wing, single engine Tuskegee Airmen National Historical Museum INC
Detroit, Michigan
Standard 2022-11-29 ValidFAA registration status code V: Valid registration. All codes
N55045 Boeing
A75N1(PT17)
Fixed-wing, single engine Tom Vanderpol Memorial Fund
Harrison, South Dakota
Standard 2022-11-28 ValidFAA registration status code V: Valid registration. All codes
N7032 Beech
RC-45J
Fixed-wing, multi-engine Individual owner
California
None on file 2022-11-22 ValidFAA registration status code V: Valid registration. All codes
N4794N Consolidated Vultee
BT-13A
Fixed-wing, single engine Acts Aviation LLC
Fulton, Texas
Standard 2022-11-18 ValidFAA registration status code V: Valid registration. All codes
N75JC Beech
D18S
Fixed-wing, multi-engine Individual owner
Georgia
Standard 2022-11-11 ValidFAA registration status code V: Valid registration. All codes
N184KP Beech
3 TM
Fixed-wing, multi-engine Plane Fun INC Tr Trustee
Snellville, Georgia
Standard 2022-10-27 ValidFAA registration status code V: Valid registration. All codes
N6509K Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Meadow Creek Aerial Application INC
Kelliher, Minnesota
Restricted 2022-10-17 ValidFAA registration status code V: Valid registration. All codes
N22404 Howard Aircraft
DGA-15P
Fixed-wing, single engine Co-owned owner
Arizona
Standard 2022-10-15 ValidFAA registration status code V: Valid registration. All codes
N60794 Consolidated Vultee
BT-13B (SNV-2)
Fixed-wing, single engine Individual owner
Colorado
Standard 2022-10-12 ValidFAA registration status code V: Valid registration. All codes
N50A Beech
D17S
Fixed-wing, single engine Individual owner
Texas
Standard 2022-09-23 ValidFAA registration status code V: Valid registration. All codes
N21PN Beech
3NM
Fixed-wing, multi-engine Dms Leasing CO LLC
Las Vegas, Nevada
Standard 2022-09-15 ValidFAA registration status code V: Valid registration. All codes
N1001 Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
Minnesota
Standard 2022-09-13 ValidFAA registration status code V: Valid registration. All codes
N9549Z Beech
C-45H
Fixed-wing, multi-engine Nighthawk Air Systems INC
Palmetto Bay, Florida
Standard 2022-09-08 ValidFAA registration status code V: Valid registration. All codes
N118DJ Beech
D18S
Fixed-wing, multi-engine International Air Services INC Trustee
Carson City, Nevada
Standard 2022-08-31 ValidFAA registration status code V: Valid registration. All codes
N63034 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Washington
Restricted 2022-08-01 ValidFAA registration status code V: Valid registration. All codes
N66925 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Washington
Restricted 2022-08-01 ValidFAA registration status code V: Valid registration. All codes
N60197 Boeing
A75
Fixed-wing, single engine Individual owner
Tennessee
Experimental 2022-07-30 ValidFAA registration status code V: Valid registration. All codes
N64772 Boeing
A75N1(PT17)
Fixed-wing, single engine Plane Fun INC Tr Trustee
Snellville, Georgia
Standard 2022-07-29 ValidFAA registration status code V: Valid registration. All codes
N1336M Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
Virginia
Standard 2022-07-28 ValidFAA registration status code V: Valid registration. All codes
N74588 Grumman
G-21A
Fixed-wing, multi-engine Southern Cross Aviation LLC
Roanoke, Texas
Standard 2022-07-28 ValidFAA registration status code V: Valid registration. All codes
N66940 Boeing
A75N1(PT17)
Fixed-wing, single engine Desert Flight Academy INC
Henderson, North Carolina
Restricted 2022-07-22 ValidFAA registration status code V: Valid registration. All codes
N17Y Howard Aircraft
DGA-11
Fixed-wing, single engine Museum of Mountain Flying INC
Missoula, Montana
Standard 2022-07-02 ValidFAA registration status code V: Valid registration. All codes
N67722 Howard Aircraft
DGA-15P
Fixed-wing, single engine Co-owned owner
Colorado
Standard 2022-07-02 ValidFAA registration status code V: Valid registration. All codes
N471CM Beech
E18S
Fixed-wing, multi-engine Individual owner
Florida
Standard 2022-06-17 ValidFAA registration status code V: Valid registration. All codes
N68073 Dehavilland
DHC-2
Fixed-wing, single engine Safeco Leasing LLC
Port Alsworth, Alaska
Standard 2022-06-16 ValidFAA registration status code V: Valid registration. All codes
N1019N Grumman
G-21A
Fixed-wing, multi-engine Individual owner
Florida
Standard 2022-06-15 ValidFAA registration status code V: Valid registration. All codes
N9889Z Beech
C-45H
Fixed-wing, multi-engine 3G Classic Aviation INC
Wilmington, Delaware
Standard 2022-06-02 ValidFAA registration status code V: Valid registration. All codes
N192H Beech
D17S
Fixed-wing, single engine Eastern Stearman INC Trustee
Leesburg, Virginia
Standard 2022-06-01 ValidFAA registration status code V: Valid registration. All codes
N9865H Howard Aircraft
DGA-15P
Fixed-wing, single engine Co-owned owner
Montana
Standard 2022-05-24 ValidFAA registration status code V: Valid registration. All codes
N414H Ford
5-AT-C
Fixed-wing, multi-engine Western Antique Aeroplane & Automobile Museum
Hood River, Oregon
Standard 2022-05-21 ValidFAA registration status code V: Valid registration. All codes
N54CX Beech
E18S
Fixed-wing, multi-engine Island City Seaplanes INC
Cordova, Alaska
Standard 2022-05-06 ValidFAA registration status code V: Valid registration. All codes
N67691 Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Olsen Aviation Alaska INC
Cordova, Alaska
Standard 2022-05-06 ValidFAA registration status code V: Valid registration. All codes
N38W Beech
H-18
Fixed-wing, multi-engine Silverbird Vintage Aircraft & Flying Services LLC
Zeeland, Michigan
Standard 2022-04-29 ValidFAA registration status code V: Valid registration. All codes
N110N Obert Neal
LIONHEART
Fixed-wing, single engine Lexthistle Enterprises LLC
Sunset, Louisiana
Experimental 2022-04-28 ValidFAA registration status code V: Valid registration. All codes
N80388 Beech
D18S
Fixed-wing, multi-engine Valiair Lc Trustee
Casper, Wyoming
Standard 2022-04-25 ValidFAA registration status code V: Valid registration. All codes
N80152 Beech
D18S
Fixed-wing, multi-engine Individual owner
Nevada
Standard 2022-04-23 ValidFAA registration status code V: Valid registration. All codes
N48550 Grumman
G-21A
Fixed-wing, multi-engine Uss Alabama Battleship Foundation INC
Mobile, Alabama
Standard 2022-04-21 ValidFAA registration status code V: Valid registration. All codes
N718Y Grumman
G-164
Fixed-wing, single engine Individual owner
California
Restricted 2022-04-20 ValidFAA registration status code V: Valid registration. All codes
N510PW Dehavilland
DHC-2
Fixed-wing, single engine 5B 7B Aero LLC
Sandpoint, Idaho
Standard 2022-04-11 ValidFAA registration status code V: Valid registration. All codes
N113Q Beech
D17S
Fixed-wing, single engine Co-owned owner
California
Standard 2022-03-30 ValidFAA registration status code V: Valid registration. All codes
N69764 Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
Ohio
Restricted 2022-03-30 ValidFAA registration status code V: Valid registration. All codes
N9776R Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Northstar Holdings LLC
Anchorage, Alaska
Multiple 2022-03-29 ValidFAA registration status code V: Valid registration. All codes
N768WM Boeing
E75
Fixed-wing, single engine Tailwinds Air INC
Morganza, Louisiana
Experimental 2022-03-28 ValidFAA registration status code V: Valid registration. All codes
N67884 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Kansas
Restricted 2022-03-19 ValidFAA registration status code V: Valid registration. All codes
N47D Beech
D17R
Fixed-wing, single engine B & B Aviation LLC
Evansville, Indiana
Standard 2022-03-17 ValidFAA registration status code V: Valid registration. All codes
N98JH Dehavilland-Air Svc Caravan Co
DHC-2
Fixed-wing, single engine Yukon King LLC
Willow, Alaska
Restricted 2022-03-17 ValidFAA registration status code V: Valid registration. All codes
N9750Z Grumman
G-21A
Fixed-wing, multi-engine Individual owner
Iowa
Standard 2022-02-26 ValidFAA registration status code V: Valid registration. All codes
N61302 Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
Missouri
Restricted 2022-02-24 ValidFAA registration status code V: Valid registration. All codes
N9752H Boeing
B75N1
Fixed-wing, single engine Hill Lawrence
Eloy, Arizona
Standard 2022-02-17 ValidFAA registration status code V: Valid registration. All codes
N61072 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
Oregon
Standard 2022-02-11 ValidFAA registration status code V: Valid registration. All codes
N100JT Lockheed
12A
Fixed-wing, multi-engine Turrell Trading CO
Flagstaff, Arizona
Standard 2022-02-03 ValidFAA registration status code V: Valid registration. All codes
N55393 Boeing
A75
Fixed-wing, single engine Co-owned owner
Ohio
Restricted 2022-01-31 ValidFAA registration status code V: Valid registration. All codes
N18125 Lockheed
12A
Fixed-wing, multi-engine Tvpx Aircraft Solutions INC Trustee
North Salt Lake, Utah
Standard 2022-01-27 ValidFAA registration status code V: Valid registration. All codes
N496DM Beech
C-45G
Fixed-wing, multi-engine Individual owner
Montana
Standard 2022-01-26 ValidFAA registration status code V: Valid registration. All codes
N631KB Dehavilland
DHC-2 MK 1
Fixed-wing, single engine K Bay Air LLC
Homer, Alaska
Standard 2022-01-21 ValidFAA registration status code V: Valid registration. All codes
N223CM Beech
D18S
Fixed-wing, multi-engine Plane Fun INC Tr Trustee
Snellville, Georgia
Standard 2022-01-12 ValidFAA registration status code V: Valid registration. All codes
N62659 Boeing
A75N1
Fixed-wing, single engine Airleasco INC
Wilmington, Delaware
Standard 2022-01-10 ValidFAA registration status code V: Valid registration. All codes
N858H Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
Washington
Standard 2021-12-14 ValidFAA registration status code V: Valid registration. All codes
N26PL Beech
H-18
Fixed-wing, multi-engine Twin Beech LLC
Kalispell, Montana
Standard 2021-12-11 ValidFAA registration status code V: Valid registration. All codes
N51MM Beech
D17S
Fixed-wing, single engine Individual owner
Washington
Standard 2021-12-11 ValidFAA registration status code V: Valid registration. All codes
N6608K Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Benoit Aerial Spraying INC
Bourbonnais, Illinois
Special flight permit 2021-12-01 ValidFAA registration status code V: Valid registration. All codes
N231A Dehavilland
BEAVER U-6A
Fixed-wing, single engine Individual owner
Idaho
Standard 2021-11-23 ValidFAA registration status code V: Valid registration. All codes
N52088 Boeing
E75
Fixed-wing, single engine Individual owner
Florida
Restricted 2021-11-20 ValidFAA registration status code V: Valid registration. All codes
N48643 Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Snake River Logistics INC
Ontario, Oregon
Restricted 2021-11-18 ValidFAA registration status code V: Valid registration. All codes
N21CA Beech
D18S
Fixed-wing, multi-engine Individual owner
Ohio
Standard 2021-11-10 ValidFAA registration status code V: Valid registration. All codes
N73621 Boeing
B75N1
Fixed-wing, single engine Continental Title Trust LLC
Wichita, Kansas
Restricted 2021-11-03 ValidFAA registration status code V: Valid registration. All codes
N75613 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Texas
Restricted 2021-10-26 ValidFAA registration status code V: Valid registration. All codes
N4001 Lockheed
12A
Fixed-wing, multi-engine Individual owner
Virginia
Standard 2021-10-22 ValidFAA registration status code V: Valid registration. All codes
N450JJ Boeing
A75N1(PT17)
Fixed-wing, single engine Pilot Maker Airshows LLC
Kansas City, Missouri
Standard 2021-10-13 ValidFAA registration status code V: Valid registration. All codes
N555RG Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Drpg Aviation LLC
Metamora, Michigan
Standard 2021-10-13 ValidFAA registration status code V: Valid registration. All codes
N87711 Beech
H-18
Fixed-wing, multi-engine Planeview Aviation Services INC
Ahoskie, North Carolina
Standard 2021-10-08 ValidFAA registration status code V: Valid registration. All codes
N491DM Beech
C-45H
Fixed-wing, multi-engine Rst Aviation LLC
Vero Beach, Florida
Standard 2021-10-05 ValidFAA registration status code V: Valid registration. All codes
N640U Grumman
G-164
Fixed-wing, single engine Regenald Michaud Aviation LLC
Willows, California
Restricted 2021-10-05 ValidFAA registration status code V: Valid registration. All codes
N40JT Beech
3 TM
Fixed-wing, multi-engine Tct Aerial LLC
Waukesha, Wisconsin
Standard 2021-09-22 ValidFAA registration status code V: Valid registration. All codes
N18211 Howard Aircraft
DGA-11
Fixed-wing, single engine Howard Aircraft Foundation
Wilmington, Delaware
Standard 2021-09-15 ValidFAA registration status code V: Valid registration. All codes
N69263 Grumman
G-21A
Fixed-wing, multi-engine Individual owner
Michigan
Standard 2021-09-14 ValidFAA registration status code V: Valid registration. All codes
N7482 Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Jetran LLC
Horseshoe Bay, Texas
Restricted 2021-09-14 ValidFAA registration status code V: Valid registration. All codes
N778 Grumman
G-21A
Fixed-wing, multi-engine L-13 LLC
Blaine, Minnesota
Multiple 2021-09-09 ValidFAA registration status code V: Valid registration. All codes
N57486 Consolidated Vultee
BT-13A
Fixed-wing, single engine American Airpower Heritage Flying Museum INC
Dallas, Texas
Standard 2021-09-02 ValidFAA registration status code V: Valid registration. All codes
N67228 Boeing
IB75A
Fixed-wing, single engine Individual owner
Texas
Standard 2021-08-31 ValidFAA registration status code V: Valid registration. All codes
N61652 Boeing
A75N1(PT17)
Fixed-wing, single engine D C L Aviation LLC
Sparks, Nevada
Standard 2021-08-19 ValidFAA registration status code V: Valid registration. All codes
N9053H Boeing
E75
Fixed-wing, single engine Individual owner
Illinois
Restricted 2021-08-12 ValidFAA registration status code V: Valid registration. All codes
N55982 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Illinois
Standard 2021-08-11 ValidFAA registration status code V: Valid registration. All codes
N4417 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
Arizona
Standard 2021-08-09 ValidFAA registration status code V: Valid registration. All codes
N95CX Beech
E18S
Fixed-wing, multi-engine Island City Seaplanes INC
Cordova, Alaska
Standard 2021-08-05 ValidFAA registration status code V: Valid registration. All codes
N4612N Beech
D17S
Fixed-wing, single engine Tex-Ark Air CORP
Melissa, Texas
Standard 2021-07-31 ValidFAA registration status code V: Valid registration. All codes
N6201 Boeing
N2S-1
Fixed-wing, single engine Newman Brian A
Caldwell, Idaho
None on file 2021-07-31 ValidFAA registration status code V: Valid registration. All codes
N7179C Beech
AT-11
Fixed-wing, multi-engine Co-owned owner
Delaware
Standard 2021-07-31 ValidFAA registration status code V: Valid registration. All codes
N17659 Spartan
7W
Fixed-wing, single engine Individual owner
Minnesota
Standard 2021-07-28 ValidFAA registration status code V: Valid registration. All codes
N3838K Boeing
E75
Fixed-wing, single engine Stone Air LLC
Carrollton, Georgia
Restricted 2021-07-24 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.