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
N8476H Beech
H-18
Fixed-wing, multi-engine Individual owner
New Hampshire
Standard 2023-09-12 ValidFAA registration status code V: Valid registration. All codes
N48672 Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Individual owner
Nebraska
Restricted 2023-09-08 ValidFAA registration status code V: Valid registration. All codes
N55432 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Florida
Restricted 2023-09-04 ValidFAA registration status code V: Valid registration. All codes
N57387 Consolidated Vultee
BT-13A
Fixed-wing, single engine Individual owner
California
Standard 2023-09-04 ValidFAA registration status code V: Valid registration. All codes
N3347G Howard Aircraft
DGA-15P
Fixed-wing, single engine Holcomb Aerial Service
Flora, Mississippi
Standard 2023-08-26 ValidFAA registration status code V: Valid registration. All codes
N52DN Beech
D18S
Fixed-wing, multi-engine Air Apparent Aviation LLC
Plant City, Florida
Standard 2023-08-23 ValidFAA registration status code V: Valid registration. All codes
N63480 Boeing
A75
Fixed-wing, single engine Individual owner
California
Standard 2023-08-21 ValidFAA registration status code V: Valid registration. All codes
N4442N Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Oklahoma
Experimental 2023-08-19 ValidFAA registration status code V: Valid registration. All codes
N2749 Dehavilland
BEAVER U-6A
Fixed-wing, single engine Individual owner
Alaska
Multiple 2023-08-18 ValidFAA registration status code V: Valid registration. All codes
N1480K Beech
G18S
Fixed-wing, multi-engine Individual owner
Florida
Standard 2023-08-16 ValidFAA registration status code V: Valid registration. All codes
N6746Q Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Morgans Flying Service LLC
Morse, Louisiana
Restricted 2023-08-16 ValidFAA registration status code V: Valid registration. All codes
N8627A Beech
E18S
Fixed-wing, multi-engine Individual owner
Ohio
Standard 2023-08-12 ValidFAA registration status code V: Valid registration. All codes
N76SU Dehavilland
DHC-2
Fixed-wing, single engine Elsa Ink LLC
Willow, Alaska
Multiple 2023-08-10 ValidFAA registration status code V: Valid registration. All codes
N130BT Consolidated Vultee
BT-13A
Fixed-wing, single engine Individual owner
New York
Standard 2023-08-07 ValidFAA registration status code V: Valid registration. All codes
N17613 Spartan
7W
Fixed-wing, single engine Individual owner
Standard 2023-08-05 ValidFAA registration status code V: Valid registration. All codes
N82039 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Minnesota
Standard 2023-08-02 ValidFAA registration status code V: Valid registration. All codes
N61535 Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
Louisiana
Standard 2023-07-26 ValidFAA registration status code V: Valid registration. All codes
N9469R Snow
S2C
Fixed-wing, single engine Individual owner
Texas
Restricted 2023-07-24 ValidFAA registration status code V: Valid registration. All codes
N328PG Boeing
E75
Fixed-wing, single engine Individual owner
Arizona
Experimental 2023-07-20 ValidFAA registration status code V: Valid registration. All codes
N1108Q Dehavilland
DHC-2
Fixed-wing, single engine Lake Clark Holdings LLC
Port Alsworth, Alaska
Standard 2023-07-13 ValidFAA registration status code V: Valid registration. All codes
N695TK Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Northwest Passage LLC
Anchorage, Alaska
Multiple 2023-07-12 ValidFAA registration status code V: Valid registration. All codes
N697 Dehavilland-Kenmore
DHC-2
Fixed-wing, single engine Northwest Passage LLC
Anchorage, Alaska
Multiple 2023-07-12 ValidFAA registration status code V: Valid registration. All codes
N698TK Dehavilland
BEAVER DHC-2
Fixed-wing, single engine Northwest Passage LLC
Anchorage, Alaska
Multiple 2023-07-12 ValidFAA registration status code V: Valid registration. All codes
N450JN Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Tennessee
Standard 2023-07-10 ValidFAA registration status code V: Valid registration. All codes
N907BS Dehavilland Acft Of Canada Ltd
DHC-2 MK I
Fixed-wing, single engine Individual owner
Alaska
Standard 2023-07-07 ValidFAA registration status code V: Valid registration. All codes
N67112 Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Individual owner
Alaska
Standard 2023-07-03 ValidFAA registration status code V: Valid registration. All codes
N1966B Dehavilland
DHC-2
Fixed-wing, single engine Qualitair LLC Trustee
Michelstadt,
Standard 2023-06-23 ValidFAA registration status code V: Valid registration. All codes
N68178 Consolidated Vultee
BT-13A
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2023-06-21 ValidFAA registration status code V: Valid registration. All codes
N10202 Grumman
G-164
Fixed-wing, single engine Tall Towers AG Service INC
Page, North Dakota
Restricted 2023-06-13 ValidFAA registration status code V: Valid registration. All codes
N9294Z Dehavilland
BEAVER U-6A
Fixed-wing, single engine River Rock Outdoors LLC
Soldotna, Alaska
Standard 2023-06-13 ValidFAA registration status code V: Valid registration. All codes
N341WP Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine West Passage Company LLC
Vashon, Washington
Standard 2023-05-31 ValidFAA registration status code V: Valid registration. All codes
N6699Q Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine S & S Aviation LLC
Morse, Louisiana
Restricted 2023-05-31 ValidFAA registration status code V: Valid registration. All codes
N322FD Boeing
A75N1
Fixed-wing, single engine Individual owner
Texas
Standard 2023-05-28 ValidFAA registration status code V: Valid registration. All codes
N5609D Beech
E18S
Fixed-wing, multi-engine Individual owner
Texas
Standard 2023-05-27 ValidFAA registration status code V: Valid registration. All codes
N3571 Consolidated Vultee
BT-13A
Fixed-wing, single engine Individual owner
Texas
Standard 2023-05-25 ValidFAA registration status code V: Valid registration. All codes
N412K Beech
D18S
Fixed-wing, multi-engine Kourtis Vintage Aviation LLC
Owasso, Oklahoma
Standard 2023-05-24 ValidFAA registration status code V: Valid registration. All codes
N6895Q Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Individual owner
Montana
Restricted 2023-05-24 ValidFAA registration status code V: Valid registration. All codes
N8957H Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Buntings Dusting INC
Berlin, Maryland
Restricted 2023-05-24 ValidFAA registration status code V: Valid registration. All codes
N51922 Boeing
A75N1
Fixed-wing, single engine Co-owned owner
Texas
Standard 2023-05-23 ValidFAA registration status code V: Valid registration. All codes
N9RW Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Rainbow River Lodge Aviation LLC
Sandy, Utah
Standard 2023-05-19 ValidFAA registration status code V: Valid registration. All codes
N712JS Beech
E18S-9700
Fixed-wing, multi-engine Beechcraft Heritage Museum
Tullahoma, Tennessee
Standard 2023-05-18 ValidFAA registration status code V: Valid registration. All codes
N6608Q Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Hershey Flying Service INC
David City, Nebraska
Restricted 2023-05-17 ValidFAA registration status code V: Valid registration. All codes
N99DV Beech
G17S
Fixed-wing, single engine Sopwith LTD
Las Vegas, Nevada
Standard 2023-05-16 ValidFAA registration status code V: Valid registration. All codes
N5314N Boeing
E75
Fixed-wing, single engine 3G Classic Aviation INC
Wilmington, Delaware
Restricted 2023-05-15 ValidFAA registration status code V: Valid registration. All codes
N181RF Boeing
E75
Fixed-wing, single engine Graham Field LTD
Adams Mills, Ohio
Restricted 2023-05-05 ValidFAA registration status code V: Valid registration. All codes
N42GL Grumman
G-21A
Fixed-wing, multi-engine Valadez Goose LLC
Helena, Montana
Standard 2023-05-05 ValidFAA registration status code V: Valid registration. All codes
N62146 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Colorado
Restricted 2023-05-04 ValidFAA registration status code V: Valid registration. All codes
N5057V Boeing
A75N1(PT17)
Fixed-wing, single engine Merkel Air INC Trustee
Wilmington, Delaware
Standard 2023-05-02 ValidFAA registration status code V: Valid registration. All codes
N48372 Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Individual owner
Missouri
Restricted 2023-04-27 ValidFAA registration status code V: Valid registration. All codes
N55579 Consolidated Vultee
BT-13A
Fixed-wing, single engine Old Aeroplane CO LLC
Lake Suzy, Florida
Standard 2023-04-26 ValidFAA registration status code V: Valid registration. All codes
N67436 Howard Aircraft
DGA-15P
Fixed-wing, single engine Dga Aeronautics LLC
Davis, West Virginia
Standard 2023-04-26 ValidFAA registration status code V: Valid registration. All codes
N75Q Beech
C-45G
Fixed-wing, multi-engine Vr Jet LLC
Goshen, Indiana
Standard 2023-04-26 ValidFAA registration status code V: Valid registration. All codes
N772AE Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Rainbow Bay Resorts LLC
Pedro Bay, Alaska
Restricted 2023-04-26 ValidFAA registration status code V: Valid registration. All codes
N55WE Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine D & B Aircraft Leasing LLC
Anchorage, Alaska
Standard 2023-04-25 ValidFAA registration status code V: Valid registration. All codes
N9611 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
Florida
Standard 2023-04-22 ValidFAA registration status code V: Valid registration. All codes
N80321 Beech
G17S
Fixed-wing, single engine Individual owner
Kansas
Standard 2023-04-21 ValidFAA registration status code V: Valid registration. All codes
N411MC Dehavilland
BEAVER DHC-2
Fixed-wing, single engine Leave It To Beaver LLC
Seattle, Washington
Standard 2023-04-13 ValidFAA registration status code V: Valid registration. All codes
N55434 Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
Indiana
Standard 2023-04-13 ValidFAA registration status code V: Valid registration. All codes
N79530 Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
Indiana
Standard 2023-04-13 ValidFAA registration status code V: Valid registration. All codes
N380 Beech
E18S
Fixed-wing, multi-engine Dillon Flying Service INC
Dillon, Montana
Standard 2023-04-08 ValidFAA registration status code V: Valid registration. All codes
N48436 Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Individual owner
North Dakota
Restricted 2023-04-08 ValidFAA registration status code V: Valid registration. All codes
N4322S Air Tractor Inc
AT-300
Fixed-wing, single engine Co-owned owner
Texas
Restricted 2023-03-28 ValidFAA registration status code V: Valid registration. All codes
N450UR Boeing
E75
Fixed-wing, single engine Collings Foundation INC DBA
Stow, Massachusetts
Standard 2023-03-26 ValidFAA registration status code V: Valid registration. All codes
N3483 Beech
UC-45J
Fixed-wing, multi-engine Texas Air Museum
Slaton, Texas
None on file 2023-03-22 ValidFAA registration status code V: Valid registration. All codes
N4477 Beech
D18S
Fixed-wing, multi-engine Co-owned owner
Tennessee
Standard 2023-03-20 ValidFAA registration status code V: Valid registration. All codes
N56716 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Arkansas
Experimental 2023-03-15 ValidFAA registration status code V: Valid registration. All codes
N78R Boeing
A75N1(PT17)
Fixed-wing, single engine Red Star Aero Holdings LLC
Mobile, Alabama
Standard 2023-03-15 ValidFAA registration status code V: Valid registration. All codes
N9030B Beech
H-18
Fixed-wing, multi-engine She Said Yes LLC
Verona, Illinois
Standard 2023-03-13 ValidFAA registration status code V: Valid registration. All codes
N121SC Beech
D18S
Fixed-wing, multi-engine North Bay Air Museum
Sonoma, California
Standard 2023-03-11 ValidFAA registration status code V: Valid registration. All codes
N68431 Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
Minnesota
Standard 2023-03-11 ValidFAA registration status code V: Valid registration. All codes
N21FS Beech
3NM
Fixed-wing, multi-engine Plane Fun INC Tr Trustee
Snellville, Georgia
Standard 2023-03-03 ValidFAA registration status code V: Valid registration. All codes
N7711J Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Iowa
Standard 2023-02-28 ValidFAA registration status code V: Valid registration. All codes
N655WH Dehavilland
DHC-2 MK 1
Fixed-wing, single engine Individual owner
California
Standard 2023-02-24 ValidFAA registration status code V: Valid registration. All codes
N66306 Boeing
E75N1
Fixed-wing, single engine Swede Aviation LLC
Tucson, Arizona
Experimental 2023-02-22 ValidFAA registration status code V: Valid registration. All codes
N715 Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Individual owner
Alaska
Standard 2023-02-22 ValidFAA registration status code V: Valid registration. All codes
N5147G Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Jb Leasing CO LLC
Nikiski, Alaska
None on file 2023-02-18 ValidFAA registration status code V: Valid registration. All codes
N5447N Beech
D17S
Fixed-wing, single engine Lady Mcgregor Aviation LLC
Santa Teresa, New Mexico
Standard 2023-02-18 ValidFAA registration status code V: Valid registration. All codes
N9597H Beech
D17S
Fixed-wing, single engine Veruca Salt LLC
Washington, Texas
Standard 2023-02-14 ValidFAA registration status code V: Valid registration. All codes
N64756 Boeing
E75
Fixed-wing, single engine Racer Aviation LLC
Moorestown, New Jersey
Standard 2023-02-11 ValidFAA registration status code V: Valid registration. All codes
N70312 Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
Idaho
Standard 2023-02-07 ValidFAA registration status code V: Valid registration. All codes
N311ZA Boeing
PT-13
Fixed-wing, single engine Suraair Holdings INC
Wilmington, Delaware
Experimental 2023-01-31 ValidFAA registration status code V: Valid registration. All codes
N165ZA Beech
C-45H
Fixed-wing, multi-engine Individual owner
Georgia
Standard 2023-01-27 ValidFAA registration status code V: Valid registration. All codes
N55971 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Texas
Standard 2023-01-27 ValidFAA registration status code V: Valid registration. All codes
N57TH Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Virginia
Standard 2023-01-27 ValidFAA registration status code V: Valid registration. All codes
N61862 Beech
D17S
Fixed-wing, single engine Individual owner
Texas
Standard 2023-01-27 ValidFAA registration status code V: Valid registration. All codes
N9NK Beech
C-45H
Fixed-wing, multi-engine Nighthawk Air Systems INC
Palmetto Bay, Florida
Standard 2023-01-27 ValidFAA registration status code V: Valid registration. All codes
N641CM Consolidated Vultee
BT-13
Fixed-wing, single engine Individual owner
Colorado
Standard 2023-01-26 ValidFAA registration status code V: Valid registration. All codes
N6030V Boeing
E75
Fixed-wing, single engine Bw Aviation LLC
Findlay, Ohio
Standard 2023-01-25 ValidFAA registration status code V: Valid registration. All codes
N70030 Consolidated Vultee
BT-13
Fixed-wing, single engine Co-owned owner
Georgia
Standard 2023-01-23 ValidFAA registration status code V: Valid registration. All codes
N17658 Spartan
7W
Fixed-wing, single engine Individual owner
Oregon
Standard 2023-01-22 ValidFAA registration status code V: Valid registration. All codes
N49935 Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
Washington
Multiple 2023-01-22 ValidFAA registration status code V: Valid registration. All codes
N5272 Grumman
G-164A
Fixed-wing, single engine Individual owner
Alabama
Restricted 2023-01-22 ValidFAA registration status code V: Valid registration. All codes
N375RM Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Grizzly Air Service INC
Paris, Texas
Standard 2023-01-19 ValidFAA registration status code V: Valid registration. All codes
N454FU Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Co-owned owner
Alaska
Standard 2023-01-19 ValidFAA registration status code V: Valid registration. All codes
N30GB Beech
H-18
Fixed-wing, multi-engine Mission Air Aviation LLC
Roanoke, Virginia
Standard 2023-01-18 ValidFAA registration status code V: Valid registration. All codes
N31522 Dehavilland
BEAVER U-6A
Fixed-wing, single engine Newhalen Lodge INC
Anchorage, Alaska
Standard 2023-01-18 ValidFAA registration status code V: Valid registration. All codes
N97001 Beech
UC-45J
Fixed-wing, multi-engine Mod Air LLC
Peyton, Colorado
Experimental 2023-01-17 ValidFAA registration status code V: Valid registration. All codes
N790N Wilson Special
W - 1
Fixed-wing, single engine Individual owner
Florida
Experimental 2023-01-16 ValidFAA registration status code V: Valid registration. All codes
N489AK Dehavilland
DHC-2
Fixed-wing, single engine Individual owner
Alaska
Multiple 2023-01-13 ValidFAA registration status code V: Valid registration. All codes
N64604 Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
Illinois
Standard 2023-01-13 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.