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
N60185 Boeing
A75N1(PT17)
Fixed-wing, single engine Planes of Fame Air Museum
Chino, California
Standard 2021-07-24 ValidFAA registration status code V: Valid registration. All codes
N67423 Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
Montana
Standard 2021-07-24 ValidFAA registration status code V: Valid registration. All codes
N48492 Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine D C Applicator
Brentwood, California
Restricted 2021-07-20 ValidFAA registration status code V: Valid registration. All codes
N57XL Dehavilland
DHC-2
Fixed-wing, single engine Arcus Aero LLC
Bridgeport, Texas
Experimental 2021-07-16 ValidFAA registration status code V: Valid registration. All codes
N1018D Dehavilland
BEAVER DHC-2
Fixed-wing, single engine Bristol Bay Mission Lodge LLC
Anchorage, Alaska
Multiple 2021-07-13 ValidFAA registration status code V: Valid registration. All codes
N46997 Boeing
A75N1(PT17)
Fixed-wing, single engine Nevioc LLC
Lincoln, Nebraska
Restricted 2021-07-13 ValidFAA registration status code V: Valid registration. All codes
N2415Z Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Tvpx Aircraft Solutions INC Trustee
North Salt Lake, Utah
Standard 2021-07-08 ValidFAA registration status code V: Valid registration. All codes
N60799 Consolidated Vultee
BT-13A
Fixed-wing, single engine Individual owner
North Carolina
Standard 2021-06-28 ValidFAA registration status code V: Valid registration. All codes
N1193N Boeing
E75
Fixed-wing, single engine Palm Springs Air Museum
Palm Springs, California
Standard 2021-06-24 ValidFAA registration status code V: Valid registration. All codes
N666TX Beech
D17S
Fixed-wing, single engine Jetran LLC
Horseshoe Bay, Texas
Standard 2021-06-17 ValidFAA registration status code V: Valid registration. All codes
N4563N Boeing
E75
Fixed-wing, single engine Individual owner
Texas
Standard 2021-06-05 ValidFAA registration status code V: Valid registration. All codes
N52686 Beech
D17S
Fixed-wing, single engine Heartland Aviation LLC
Ada, Oklahoma
Standard 2021-06-02 ValidFAA registration status code V: Valid registration. All codes
N14AK Dehavilland
DHC-2 MK.I
Fixed-wing, single engine Redemption INC
Kodiak, Alaska
Standard 2021-06-01 ValidFAA registration status code V: Valid registration. All codes
N65877 Boeing
E75N1
Fixed-wing, single engine Individual owner
Texas
Standard 2021-05-27 ValidFAA registration status code V: Valid registration. All codes
N735YP Boeing
B75N1
Fixed-wing, single engine Jwe Aviation LLC
Carmel, Indiana
Standard 2021-05-15 ValidFAA registration status code V: Valid registration. All codes
N56941 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Indiana
Restricted 2021-05-13 ValidFAA registration status code V: Valid registration. All codes
N734Q Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Elijah Air LLC
Bethel, Alaska
Standard 2021-05-06 ValidFAA registration status code V: Valid registration. All codes
N102SY Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Elijah Air LLC
Bethel, Alaska
Standard 2021-05-05 ValidFAA registration status code V: Valid registration. All codes
N79535 Boeing
75
Fixed-wing, single engine 3G Classic Aviation INC
Wilmington, Delaware
Standard 2021-04-30 ValidFAA registration status code V: Valid registration. All codes
N682AF Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Apogee Flight INC
Bellingham, Washington
Standard 2021-04-22 ValidFAA registration status code V: Valid registration. All codes
N65691 Boeing
E75N1
Fixed-wing, single engine Paramount Overseas Productions INC
Los Angeles, California
Experimental 2021-04-21 ValidFAA registration status code V: Valid registration. All codes
N230 Beech
D17S
Fixed-wing, single engine Momentum Foundation INC
Tullahoma, Tennessee
Standard 2021-04-20 ValidFAA registration status code V: Valid registration. All codes
N25628 Lockheed
12A
Fixed-wing, multi-engine International Air Services INC Trustee
Carson City, Nevada
Standard 2021-04-20 ValidFAA registration status code V: Valid registration. All codes
N6773Q Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Currys Flying Service INC
Osborne, Kansas
Restricted 2021-04-20 ValidFAA registration status code V: Valid registration. All codes
N10286 Grumman
G-164A
Fixed-wing, single engine Flying D Farm INC
Kerhonkson, New York
Restricted 2021-04-16 ValidFAA registration status code V: Valid registration. All codes
N8820 Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Gooding Lake Aviation LLC
Wasilla, Alaska
Standard 2021-04-10 ValidFAA registration status code V: Valid registration. All codes
N41111 Snow
S2C
Fixed-wing, single engine Westerlin-Harrington Flying Service INC
Holdrege, Nebraska
Restricted 2021-03-25 ValidFAA registration status code V: Valid registration. All codes
N9039H Boeing
B75N1
Fixed-wing, single engine Paramount Overseas Productions INC
Los Angeles, California
Experimental 2021-03-22 ValidFAA registration status code V: Valid registration. All codes
N80373 Beech
D18S
Fixed-wing, multi-engine Individual owner
Wyoming
Standard 2021-03-20 ValidFAA registration status code V: Valid registration. All codes
N45298 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Scott Ts Ag-Flyin INC
Colquitt, Georgia
Experimental 2021-03-19 ValidFAA registration status code V: Valid registration. All codes
N44920 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
Washington
Standard 2021-03-18 ValidFAA registration status code V: Valid registration. All codes
N87690 Beech
C-45H
Fixed-wing, multi-engine Montana Sitework LLC
Rainbow City, Alabama
Standard 2021-03-18 ValidFAA registration status code V: Valid registration. All codes
N654DF Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2021-03-11 ValidFAA registration status code V: Valid registration. All codes
N94TP Dehavilland/Peters
DHC-2
Fixed-wing, single engine Douglas Aviation LTD
South Barrington, Illinois
Standard 2021-03-10 ValidFAA registration status code V: Valid registration. All codes
N5270N Boeing
E75
Fixed-wing, single engine Individual owner
Colorado
Restricted 2021-03-06 ValidFAA registration status code V: Valid registration. All codes
N18RY Beech
E18S
Fixed-wing, multi-engine Individual owner
Arkansas
Standard 2021-02-11 ValidFAA registration status code V: Valid registration. All codes
N273X Younkin J R
MULLICOUPE
Fixed-wing, single engine Co-owned owner
California
Experimental 2021-02-10 ValidFAA registration status code V: Valid registration. All codes
N9077H Boeing
E75
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2021-02-10 ValidFAA registration status code V: Valid registration. All codes
N48474 Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Individual owner
Alabama
Restricted 2021-02-08 ValidFAA registration status code V: Valid registration. All codes
N33650 Lockheed
12A
Fixed-wing, multi-engine Air Cav Helicopters LLC
Wilmington, Delaware
Standard 2021-01-21 ValidFAA registration status code V: Valid registration. All codes
N985FF Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
California
Standard 2021-01-09 ValidFAA registration status code V: Valid registration. All codes
N42D Beech
E18S
Fixed-wing, multi-engine Co-owned owner
Alaska
Standard 2021-01-04 ValidFAA registration status code V: Valid registration. All codes
N45043 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Jespersen Jay A
Bettles Field, Alaska
Standard 2020-12-21 ValidFAA registration status code V: Valid registration. All codes
N5301N Boeing
E75
Fixed-wing, single engine Individual owner
Florida
Standard 2020-12-01 ValidFAA registration status code V: Valid registration. All codes
N1030 Beech
D17S
Fixed-wing, single engine Individual owner
Oregon
Standard 2020-11-30 ValidFAA registration status code V: Valid registration. All codes
N62BN Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Individual owner
Minnesota
Standard 2020-11-30 ValidFAA registration status code V: Valid registration. All codes
N16GD Beech
G17S
Fixed-wing, single engine E C Nelson INC
Rio Oso, California
Standard 2020-11-21 ValidFAA registration status code V: Valid registration. All codes
N62489 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Maryland
Standard 2020-11-19 ValidFAA registration status code V: Valid registration. All codes
N83VR Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Withheld at owner's request
Standard 2020-11-19 ValidFAA registration status code V: Valid registration. All codes
N4444 Spartan
7W
Fixed-wing, single engine Old Style Aircraft LLC
Ellsinore, Missouri
Standard 2020-11-17 ValidFAA registration status code V: Valid registration. All codes
N48613 Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Crop-Aid Aerial Service LLC
Hillsboro, Ohio
Restricted 2020-11-12 ValidFAA registration status code V: Valid registration. All codes
N24Y Beech
E18S
Fixed-wing, multi-engine Hoge Aviation LLC
Pipersville, Pennsylvania
Standard 2020-11-10 ValidFAA registration status code V: Valid registration. All codes
N4425V Consolidated Vultee
BT-13B (SNV-2)
Fixed-wing, single engine Individual owner
California
Standard 2020-11-10 ValidFAA registration status code V: Valid registration. All codes
N450HP Boeing/Jonas Edwin A Jr
BOEING/JONAS 1B75A
Fixed-wing, single engine Flight Works LLC
Litchfield Park, Arizona
Standard 2020-11-10 ValidFAA registration status code V: Valid registration. All codes
N116CX Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Individual owner
Alaska
Multiple 2020-10-28 ValidFAA registration status code V: Valid registration. All codes
N555WS Beech
E18S
Fixed-wing, multi-engine Deer Creek Dusters INC
Rolling Fork, Mississippi
Standard 2020-10-24 ValidFAA registration status code V: Valid registration. All codes
N68443 Boeing
E75
Fixed-wing, single engine 3G Classic Aviation INC
Wilmington, Delaware
Restricted 2020-10-22 ValidFAA registration status code V: Valid registration. All codes
N45108 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Db Aero INC
Wilmington, Delaware
Restricted 2020-10-21 ValidFAA registration status code V: Valid registration. All codes
N44986 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Db Aero INC
Wilmington, Delaware
Restricted 2020-10-17 ValidFAA registration status code V: Valid registration. All codes
N44987 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Db Aero INC
Wilmington, Delaware
Restricted 2020-10-17 ValidFAA registration status code V: Valid registration. All codes
N45234 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Db Aero INC
Wilmington, Delaware
Restricted 2020-10-17 ValidFAA registration status code V: Valid registration. All codes
N1066N Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
California
Standard 2020-09-14 ValidFAA registration status code V: Valid registration. All codes
N18TX Avions Max Holste
MH 1521 BROUSSARD
Fixed-wing, single engine Co-owned owner
Nevada
Experimental 2020-08-27 ValidFAA registration status code V: Valid registration. All codes
N1178R Dehavilland
DHC-2 MK 1
Fixed-wing, single engine Petersburg Flying Service LLC
Petersburg, Alaska
Standard 2020-08-18 ValidFAA registration status code V: Valid registration. All codes
N8504 Beech
C-45H
Fixed-wing, multi-engine Clay-Klein LLC
Indianapolis, Indiana
Standard 2020-08-18 ValidFAA registration status code V: Valid registration. All codes
N26035 Beech
H-18
Fixed-wing, multi-engine Aom Aircraft LLC
Wilmington, Delaware
Standard 2020-08-17 ValidFAA registration status code V: Valid registration. All codes
N68800 Boeing
B75N1
Fixed-wing, single engine N68800 LLC
Mesa, Arizona
Standard 2020-08-11 ValidFAA registration status code V: Valid registration. All codes
N90225 Weatherly Aviation Co Inc
620B
Fixed-wing, single engine Moores Aerial Applicators LLC
Morehead City, North Carolina
Restricted 2020-08-10 ValidFAA registration status code V: Valid registration. All codes
N3666G Beech
C-45H
Fixed-wing, multi-engine Dream Weaver Aviation LLC
East Berlin, Pennsylvania
Standard 2020-08-05 ValidFAA registration status code V: Valid registration. All codes
N441SN Consolidated Vultee
SNV-2
Fixed-wing, single engine Lone Star Flight Museum
Houston, Texas
Standard 2020-08-01 ValidFAA registration status code V: Valid registration. All codes
N368 Beech
D17S
Fixed-wing, single engine San Diego Air and Space Museum
San Diego, California
Standard 2020-07-20 ValidFAA registration status code V: Valid registration. All codes
N1EC Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Louisiana
Experimental 2020-07-08 ValidFAA registration status code V: Valid registration. All codes
N59SS Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Individual owner
Washington
Standard 2020-06-24 ValidFAA registration status code V: Valid registration. All codes
N5207N Boeing
PT-17
Fixed-wing, single engine Individual owner
Texas
Restricted 2020-06-23 ValidFAA registration status code V: Valid registration. All codes
N63804 Boeing
PT-17
Fixed-wing, single engine Individual owner
Texas
Restricted 2020-06-23 ValidFAA registration status code V: Valid registration. All codes
N69H Beech
D17S
Fixed-wing, single engine Kfg Aviation INC
Huntersville, North Carolina
Standard 2020-06-23 ValidFAA registration status code V: Valid registration. All codes
N5374N Boeing
E75
Fixed-wing, single engine Heath Aviation LLC
Ludowici, Georgia
Standard 2020-06-16 ValidFAA registration status code V: Valid registration. All codes
N32KP Pietsch Kent D
JET WACO TAPERWING
Fixed-wing, multi-engine 32 Kilo Papa LLC
Kalispell, Montana
Experimental 2020-06-15 ValidFAA registration status code V: Valid registration. All codes
N4326S Air Tractor Inc
AT-301
Fixed-wing, single engine Marlow Aviation LLC
Lamoni, Iowa
Restricted 2020-06-12 ValidFAA registration status code V: Valid registration. All codes
N4497N Boeing
B75N1
Fixed-wing, single engine Individual owner
Indiana
Standard 2020-06-10 ValidFAA registration status code V: Valid registration. All codes
N165X Beech
E18S
Fixed-wing, multi-engine Rock Air LLC
Wilmington, Delaware
Standard 2020-05-19 ValidFAA registration status code V: Valid registration. All codes
N2072 Lockheed
12A
Fixed-wing, multi-engine N12Ex INC
Jackson, Georgia
Standard 2020-05-18 ValidFAA registration status code V: Valid registration. All codes
N160 Beech
D17S
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2020-05-14 ValidFAA registration status code V: Valid registration. All codes
N8878H Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Riggin Flight Service INC
Madison, South Dakota
Restricted 2020-04-28 ValidFAA registration status code V: Valid registration. All codes
N18V Beech
D17S
Fixed-wing, single engine Eastern Stearman INC Trustee
Leesburg, Virginia
Standard 2020-04-20 ValidFAA registration status code V: Valid registration. All codes
N67579 Convair
BT-13A
Fixed-wing, single engine Golden Age Flight Museum INC
Bakersfield, California
Experimental 2020-04-15 ValidFAA registration status code V: Valid registration. All codes
N44954 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Ace Aeromotive INC
Miami, Florida
Restricted 2020-04-10 ValidFAA registration status code V: Valid registration. All codes
N11863 Beech
C-45G
Fixed-wing, multi-engine Individual owner
California
Standard 2020-03-18 ValidFAA registration status code V: Valid registration. All codes
N53239 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
California
Restricted 2020-03-18 ValidFAA registration status code V: Valid registration. All codes
N53113 Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
Nevada
Restricted 2020-03-10 ValidFAA registration status code V: Valid registration. All codes
N5024V Boeing
E75
Fixed-wing, single engine 713 Delta INC
Denton, Texas
Standard 2020-03-09 ValidFAA registration status code V: Valid registration. All codes
N5553N Howard Aircraft
DGA-15P
Fixed-wing, single engine Nighthawk Air Systems INC
Marion, Texas
Standard 2020-02-24 ValidFAA registration status code V: Valid registration. All codes
N20003 Weatherly Aviation Co Inc
620B
Fixed-wing, single engine Individual owner
South Carolina
Restricted 2020-02-19 ValidFAA registration status code V: Valid registration. All codes
N9172Z Beech
C-45H
Fixed-wing, multi-engine Nighthawk Air Systems INC
Palmetto Bay, Florida
Standard 2020-02-19 ValidFAA registration status code V: Valid registration. All codes
N22416 Howard Aircraft
DGA-15P
Fixed-wing, single engine 3G Classic Aviation INC
Wilmington, Delaware
Standard 2020-02-12 ValidFAA registration status code V: Valid registration. All codes
N75546 Boeing
B75N1
Fixed-wing, single engine Aircraft Guaranty CORP Trustee
Oklahoma City, Oklahoma
Standard 2020-02-12 ValidFAA registration status code V: Valid registration. All codes
N122Q Boeing
A75
Fixed-wing, single engine Co-owned owner
Ohio
Restricted 2020-02-10 ValidFAA registration status code V: Valid registration. All codes
N7956 Schweizer Aircraft Corp
G-164B
Fixed-wing, single engine Individual owner
North Dakota
Restricted 2020-02-07 ValidFAA registration status code V: Valid registration. All codes
N19AK Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Redemption INC
Kodiak, Alaska
Multiple 2020-02-04 ValidFAA registration status code V: Valid registration. All codes
N90RF Boeing
A75
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2020-01-28 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.