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

Continental R670-series

170 aircraft on the U.S. register carry a Continental R670-series engine, rated at about 225 horsepower. The Boeing A75 Stearman Kaydet is the model most often fitted with it (63 aircraft). The aircraft carrying it were built between 1928 and 1990.

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 Continental R670-series. FAA spelling: R670-SERIES.

Fitted to model families

Boeing A75 Stearman Kaydet63Boeing B75 Stearman Kaydet15Waco UPF-711Waco QCF7Waco UIC7Fairchild(Howard) M-626Waco UEC6Waco UBF5Boeing E75 Stearman Kaydet5Boeing 753Waco BSO3Curtiss Wright ROBIN2

Boeing A75 Stearman Kaydet · Boeing B75 Stearman Kaydet · Waco UPF-7 · Waco QCF · Waco UIC · Fairchild(Howard) M-62 · Waco UEC · Waco UBF · Boeing E75 Stearman Kaydet · Boeing 75

Where they are owner's state

Texas16California15Ohio14Washington10New York9Minnesota9Florida8Virginia7Wisconsin6Delaware6

Kind of aircraft

Piston singles170 (100%)

When the aircraft were built by decade

0224467891419203119308919401195021960319701198011990

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

Fitted to
Where they are
Biggest operators

These connections as data: /graph/engine/continental-r670-series.json · about the eFlight graph.

Aircraft newest certificates first · 170

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N2312C Wellington Sport
MK-1
Fixed-wing, single engine Co-owned owner
Mississippi
Experimental 2026-08-29 ValidFAA registration status code V: Valid registration. All codes
N28024 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2026-08-23 ValidFAA registration status code V: Valid registration. All codes
N39717 Waco
UPF-7
Fixed-wing, single engine Upf-Sevens LLC
Hamilton, Ohio
Standard 2026-08-23 ValidFAA registration status code V: Valid registration. All codes
N2091S Waco
QCF
Fixed-wing, single engine Sterling Foundation
Valparaiso, Indiana
Standard 2026-07-22 ValidFAA registration status code V: Valid registration. All codes
N51902 Boeing
A75N1(PT17)
Fixed-wing, single engine National Wasp Wwii Museum INC
Sweetwater, Texas
Standard 2026-05-14 ValidFAA registration status code V: Valid registration. All codes
N79997 Boeing
PT-17
Fixed-wing, single engine Individual owner
California
Standard 2026-04-17 ValidFAA registration status code V: Valid registration. All codes
N73449 Boeing
A75N1(PT17)
Fixed-wing, single engine Flying Dutchman Aircraft Holdings LLC
Stafford, Virginia
Standard 2026-03-14 ValidFAA registration status code V: Valid registration. All codes
N11241 Waco
QCF
Fixed-wing, single engine Co-owned owner
California
Standard 2026-03-10 ValidFAA registration status code V: Valid registration. All codes
N6263 Curtiss Wright
TRAVEL AIR 4000
Fixed-wing, single engine Southern Aircraft Consultancy INC Trustee
Casper, Wyoming
Standard 2026-03-02 ValidFAA registration status code V: Valid registration. All codes
N12467 Waco
UEC
Fixed-wing, single engine Southern Aircraft Consultancy INC Trustee
Casper, Wyoming
Standard 2026-02-05 ValidFAA registration status code V: Valid registration. All codes
N691K Travel Air
E-4000
Fixed-wing, single engine Individual owner
Florida
Standard 2026-01-31 ValidFAA registration status code V: Valid registration. All codes
N17211 Boeing
A75N1(PT17)
Fixed-wing, single engine Michalek Construction INC
Keosauqua, Iowa
Standard 2026-01-01 ValidFAA registration status code V: Valid registration. All codes
N13446 Waco
UBF
Fixed-wing, single engine Co-owned owner
Massachusetts
Restricted 2025-09-14 ValidFAA registration status code V: Valid registration. All codes
N9022R Clark
12
Fixed-wing, single engine Individual owner
Oklahoma
Restricted 2025-07-15 ValidFAA registration status code V: Valid registration. All codes
N13074 Waco
UBF
Fixed-wing, single engine Individual owner
Minnesota
Standard 2025-05-01 ValidFAA registration status code V: Valid registration. All codes
N32132 Waco
UPF-7
Fixed-wing, single engine Individual owner
Minnesota
Standard 2025-04-29 ValidFAA registration status code V: Valid registration. All codes
N12457 Waco
UEC
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2025-03-12 ValidFAA registration status code V: Valid registration. All codes
N707R Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
California
Standard 2025-02-27 ValidFAA registration status code V: Valid registration. All codes
N55382 Boeing
A75N1(PT17)
Fixed-wing, single engine Envisage LLC
Virginia Beach, Virginia
Standard 2025-02-17 ValidFAA registration status code V: Valid registration. All codes
N39743 Waco
UPF-7
Fixed-wing, single engine International Air Services INC Trustee
Carson City, Nevada
Standard 2025-01-02 ValidFAA registration status code V: Valid registration. All codes
N13412 Waco
UIC
Fixed-wing, single engine Individual owner
Ohio
Standard 2024-07-27 ValidFAA registration status code V: Valid registration. All codes
N4925N Boeing
A75N1(PT17)
Fixed-wing, single engine Flight Adventures LLC
Jacksonville, Florida
Standard 2024-07-24 ValidFAA registration status code V: Valid registration. All codes
N50061 Boeing
A75N1
Fixed-wing, single engine Bush Bird LLC
Savage, Minnesota
Standard 2024-07-06 ValidFAA registration status code V: Valid registration. All codes
N52011 Boeing
A75N1(PT17)
Fixed-wing, single engine Vintage Aero Collection INC
Wilmington, Delaware
Standard 2024-04-01 ValidFAA registration status code V: Valid registration. All codes
N53478 Boeing
B75N1
Fixed-wing, single engine Individual owner
Texas
Standard 2024-02-19 ValidFAA registration status code V: Valid registration. All codes
N55750 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Texas
Restricted 2024-02-19 ValidFAA registration status code V: Valid registration. All codes
N61116 Boeing
B75N1
Fixed-wing, single engine Individual owner
New York
Standard 2024-02-19 ValidFAA registration status code V: Valid registration. All codes
N55079 Boeing
A75N1(PT17)
Fixed-wing, single engine Kebud LLC
West Springfield, Massachusetts
Standard 2023-12-13 ValidFAA registration status code V: Valid registration. All codes
N41871 Fleet
FLEET 16B
Fixed-wing, single engine Individual owner
Arizona
Restricted 2023-10-05 ValidFAA registration status code V: Valid registration. All codes
N11426 Waco
QCF
Fixed-wing, single engine Individual owner
Washington
Restricted 2023-09-13 ValidFAA registration status code V: Valid registration. All codes
N56833 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
California
Restricted 2023-08-23 ValidFAA registration status code V: Valid registration. All codes
N11473 Waco
QDC
Fixed-wing, single engine Co-owned owner
California
Standard 2023-03-17 ValidFAA registration status code V: Valid registration. All codes
N52121 Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
Delaware
Restricted 2023-03-03 ValidFAA registration status code V: Valid registration. All codes
N69CB Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
Oklahoma
Restricted 2023-01-10 ValidFAA registration status code V: Valid registration. All codes
N49413 Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
Alaska
Standard 2023-01-05 ValidFAA registration status code V: Valid registration. All codes
N13408 Waco
UIC
Fixed-wing, single engine Collings Foundation INC DBA
Stow, Massachusetts
Standard 2022-12-26 ValidFAA registration status code V: Valid registration. All codes
N155Y Waco
UBF
Fixed-wing, single engine Texas Barnstorming Museum
Hallettsville, Texas
Standard 2022-08-13 ValidFAA registration status code V: Valid registration. All codes
N3979 Travel Air
4000
Fixed-wing, single engine Individual owner
Florida
Standard 2021-10-12 ValidFAA registration status code V: Valid registration. All codes
N64888 Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
California
Standard 2021-09-30 ValidFAA registration status code V: Valid registration. All codes
N231MM Mooney Aircraft Corp.
M20K
Fixed-wing, single engine Individual owner
North Carolina
Standard 2021-09-23 ValidFAA registration status code V: Valid registration. All codes
N395K Curtiss Wright
ROBIN C-1
Fixed-wing, single engine Co-owned owner
Kentucky
Standard 2021-09-23 ValidFAA registration status code V: Valid registration. All codes
N12002 Waco
UBF
Fixed-wing, single engine Individual owner
Tennessee
Standard 2021-09-10 ValidFAA registration status code V: Valid registration. All codes
N707X Boeing
A75N1(PT17)
Fixed-wing, single engine No Limits Aviation INC
Hayden, Idaho
Standard 2021-08-11 ValidFAA registration status code V: Valid registration. All codes
N11482 Waco
QCF
Fixed-wing, single engine Biscayne Biplanes LLC
Green Cove Springs, Florida
Standard 2021-07-27 ValidFAA registration status code V: Valid registration. All codes
N32193 Waco
UPF-7
Fixed-wing, single engine Marden Aero Services LLC
Erwinna, Pennsylvania
Standard 2021-06-08 ValidFAA registration status code V: Valid registration. All codes
N58416 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
New York
Standard 2021-04-19 ValidFAA registration status code V: Valid registration. All codes
N62159 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Michigan
Standard 2021-04-14 ValidFAA registration status code V: Valid registration. All codes
N48784 Boeing
A75N1(PT17)
Fixed-wing, single engine Webfoot Aviation LLC
Saint Louis, Missouri
Standard 2021-03-24 ValidFAA registration status code V: Valid registration. All codes
N60629 Fairchild(Howard)
M-62C(PT-23A)
Fixed-wing, single engine Aerial Operations LLC
Belgrade Lakes, Maine
Standard 2021-03-06 ValidFAA registration status code V: Valid registration. All codes
N4737V Boeing
E75
Fixed-wing, single engine Individual owner
Washington
Standard 2021-02-19 ValidFAA registration status code V: Valid registration. All codes
N29368 Waco
UPF-7
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2021-02-16 ValidFAA registration status code V: Valid registration. All codes
N23PT Fairchild(Howard)
M-62C(PT-23A)
Fixed-wing, single engine Individual owner
Tennessee
Standard 2021-01-27 ValidFAA registration status code V: Valid registration. All codes
N53T Travis
STARDUSTER TOO SA300
Fixed-wing, single engine Individual owner
Michigan
Experimental 2020-11-23 ValidFAA registration status code V: Valid registration. All codes
N53355 Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
Alaska
Standard 2020-09-08 ValidFAA registration status code V: Valid registration. All codes
N11450 Waco
QCF
Fixed-wing, single engine Individual owner
New Jersey
Restricted 2020-09-02 ValidFAA registration status code V: Valid registration. All codes
N58068 Boeing
A75N1(PT17)
Fixed-wing, single engine Aa Stearman Lld
Lewisville, Texas
Multiple 2020-08-10 ValidFAA registration status code V: Valid registration. All codes
N32045 Waco
UPF-7
Fixed-wing, single engine Adventure North Flying Service LLC
Baudette, Minnesota
Standard 2020-06-08 ValidFAA registration status code V: Valid registration. All codes
N54766 Boeing
A75N1(PT17)
Fixed-wing, single engine Fletcher Flying Service 419 LLC
Labelle, Florida
Restricted 2020-05-20 ValidFAA registration status code V: Valid registration. All codes
N32063 Waco
UPF-7
Fixed-wing, single engine Alta Group LLC
Fort Wayne, Indiana
Standard 2020-04-09 ValidFAA registration status code V: Valid registration. All codes
N49733 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
California
Standard 2020-03-24 ValidFAA registration status code V: Valid registration. All codes
N175SE Boeing
B75N1
Fixed-wing, single engine Co-owned owner
Texas
Standard 2020-01-31 ValidFAA registration status code V: Valid registration. All codes
N60961 Boeing
A75N1(PT17)
Fixed-wing, single engine Peeling Away INC
Kalispell, Montana
Standard 2019-12-02 ValidFAA registration status code V: Valid registration. All codes
N65996 Boeing
B75N1
Fixed-wing, single engine Individual owner
Texas
Standard 2019-09-24 ValidFAA registration status code V: Valid registration. All codes
N777FG Piper
PA-28RT-201T
Fixed-wing, single engine Individual owner
California
Standard 2019-09-09 ValidFAA registration status code V: Valid registration. All codes
N50329 Boeing
A75N1(PT17)
Fixed-wing, single engine American Airpower Heritage Flying Museum INC
Dallas, Texas
Standard 2019-09-03 ValidFAA registration status code V: Valid registration. All codes
N5106N Boeing
A75N1
Fixed-wing, single engine Individual owner
California
Standard 2019-08-21 ValidFAA registration status code V: Valid registration. All codes
N59778 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
New York
Standard 2019-08-07 ValidFAA registration status code V: Valid registration. All codes
N6420 Travel Air Mfg Co
2000
Fixed-wing, single engine Individual owner
Michigan
None on file 2019-06-13 ValidFAA registration status code V: Valid registration. All codes
N52224 Fairchild(Howard)
M-62C(PT-23A)
Fixed-wing, single engine Individual owner
New York
Standard 2019-05-15 ValidFAA registration status code V: Valid registration. All codes
N1928M Boeing
A75N1(PT17)
Fixed-wing, single engine Oleary Ruth
Jacksonville, Florida
Standard 2018-08-30 ValidFAA registration status code V: Valid registration. All codes
N4W Waco
ASO
Fixed-wing, single engine Individual owner
Washington
Standard 2018-06-06 ValidFAA registration status code V: Valid registration. All codes
N16236 Waco
VKS-6
Fixed-wing, single engine Individual owner
New York
Standard 2018-05-24 ValidFAA registration status code V: Valid registration. All codes
N400KR Robinson
MERE-MERIT
Fixed-wing, single engine Individual owner
Minnesota
Experimental 2018-02-06 ValidFAA registration status code V: Valid registration. All codes
N13561 Waco
UIC
Fixed-wing, single engine Individual owner
New York
Standard 2018-02-05 ValidFAA registration status code V: Valid registration. All codes
N3932F Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Washington
Standard 2018-01-17 ValidFAA registration status code V: Valid registration. All codes
N11465 Waco
QCF
Fixed-wing, single engine Aerojet Services INC
Poplar Grove, Illinois
Standard 2017-12-06 ValidFAA registration status code V: Valid registration. All codes
N5165N Boeing
B75N1
Fixed-wing, single engine Apd LLC
Madison, Ohio
Standard 2017-09-13 ValidFAA registration status code V: Valid registration. All codes
N76H Curtiss Wright
ROBIN C-1
Fixed-wing, single engine Co-owned owner
Alaska
Standard 2017-08-23 ValidFAA registration status code V: Valid registration. All codes
N62241 Boeing
A75N1(PT17)
Fixed-wing, single engine Elliott Warbirds LLC
Grand Coteau, Louisiana
Standard 2017-05-23 ValidFAA registration status code V: Valid registration. All codes
N1917W Woerner
FOKKER DR-1
Fixed-wing, single engine Co-owned owner
Ohio
Experimental 2017-05-09 ValidFAA registration status code V: Valid registration. All codes
N13562 Waco
UIC
Fixed-wing, single engine Individual owner
California
Standard 2017-05-03 ValidFAA registration status code V: Valid registration. All codes
N57289 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Washington
None on file 2017-04-14 ValidFAA registration status code V: Valid registration. All codes
N56656 Boeing
A75
Fixed-wing, single engine Individual owner
Colorado
Standard 2017-02-06 ValidFAA registration status code V: Valid registration. All codes
N88887 Boeing
75
Fixed-wing, single engine Individual owner
Tennessee
Standard 2016-12-21 ValidFAA registration status code V: Valid registration. All codes
N56022 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Texas
Standard 2016-12-08 ValidFAA registration status code V: Valid registration. All codes
N517M Waco
CSO
Fixed-wing, single engine Individual owner
Arizona
Standard 2016-11-17 ValidFAA registration status code V: Valid registration. All codes
N69706 Boeing
B75N1
Fixed-wing, single engine Air Cav Helicopters LLC
Wilmington, Delaware
Standard 2016-09-14 ValidFAA registration status code V: Valid registration. All codes
N404 Fairchild
24W-40
Fixed-wing, single engine Co-owned owner
Alaska
Standard 2016-07-26 ValidFAA registration status code V: Valid registration. All codes
N30149 Waco
UPF-7
Fixed-wing, single engine Individual owner
California
Standard 2016-06-29 ValidFAA registration status code V: Valid registration. All codes
N65368 Boeing
B75N1
Fixed-wing, single engine Air Cav Helicopters LLC
Wilmington, Delaware
Standard 2016-05-19 ValidFAA registration status code V: Valid registration. All codes
N65727 Boeing
A75N1(PT17)
Fixed-wing, single engine Avenger LLC
Beaverton, Oregon
Standard 2016-04-21 ValidFAA registration status code V: Valid registration. All codes
N29957 Waco
UPF-7
Fixed-wing, single engine Radial Enterprises LLC
New Carlisle, Ohio
Standard 2016-04-18 ValidFAA registration status code V: Valid registration. All codes
N77ED Boeing
A75N1(PT17)
Fixed-wing, single engine Stellaire Alliance LLC
Fort Worth, Texas
Standard 2015-11-09 ValidFAA registration status code V: Valid registration. All codes
N3277G Curtiss Wright
ROBIN
Fixed-wing, single engine Individual owner
Texas
Standard 2014-11-14 ValidFAA registration status code V: Valid registration. All codes
N49760 Boeing
A75N1(PT17)
Fixed-wing, single engine Matterhorn Holding Company LLC
Saint Petersburg, Florida
Multiple 2014-10-23 ValidFAA registration status code V: Valid registration. All codes
N61V Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
New Jersey
Standard 2014-09-25 ValidFAA registration status code V: Valid registration. All codes
N20900 Waco
VKS-7
Fixed-wing, single engine Individual owner
Indiana
Standard 2014-09-08 ValidFAA registration status code V: Valid registration. All codes
N917PT Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
West Virginia
Standard 2014-08-13 ValidFAA registration status code V: Valid registration. All codes
N12472 Waco
UEC
Fixed-wing, single engine Eaa
Oshkosh, Wisconsin
Standard 2014-06-30 ValidFAA registration status code V: Valid registration. All codes
N13037 Waco
UEC
Fixed-wing, single engine Individual owner
Ohio
Standard 2014-06-30 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.