Engines · piston (reciprocating) · data as of October 7, 2026

Continental W670 series

987 aircraft on the U.S. register carry a Continental W670 series engine, rated at about 250 horsepower. The Boeing A75 Stearman Kaydet is the model most often fitted with it (345 aircraft). The aircraft carrying it were built between 1928 and 2026.

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 W670 series. FAA spelling: W670 SERIES.

Fitted to model families

Boeing A75 Stearman Kaydet345Waco UPF-7127Boeing B75 Stearman Kaydet120Cessna 19060Boeing E75 Stearman Kaydet59Boeing D7519Fairchild(Howard) M-6216Boeing PT-1715Jones Peter M BOEING/JONES 7513Curtiss Wright TRAVEL AIR 400011Grumman G-16411Waco ASO10

Boeing A75 Stearman Kaydet · Waco UPF-7 · Boeing B75 Stearman Kaydet · Cessna 190 · Boeing E75 Stearman Kaydet · Boeing D75 · Fairchild(Howard) M-62 · Boeing PT-17 · Jones Peter M BOEING/JONES 75 · Curtiss Wright TRAVEL AIR 4000

Where they are owner's state

Texas101California78Florida73Illinois57Delaware52Ohio40Georgia34Virginia33Washington30Pennsylvania27

Kind of aircraft

Piston singles986 (100%)Helicopters1 (0.1%)

When the aircraft were built by decade

What the FAA has certified, ordered and been told about the Continental W670 series the component layer

The design is held under 1 type certificate (TC 168, held by Teledyne Continental Motors). The FAA has issued 1 airworthiness directive (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 8 failure reports with the FAA since 1995, 3 of them in the last ten years.

FAA orders 1 airworthiness directives · newest first

53-09-04 · Propeller Blades · engine

Failure reports 8 since · what operators and shops told the FAA

Parts most often reported as the reports name them

Hinge Bracket4Bearing1Lock Nut1Shoe1Stringer1

Latest reports

2015-09-15Lock Nut: broken

2009-08-10Shoe: inoperative

2007-07-11Stringer: corroded

2004-05-25Hinge Bracket: corroded

Certificates and bulletins

TC 168Type certificate held by Teledyne Continental Motors · 2 models listed

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

Boeing A75 Stearman Kaydet 345 with this engine series
Waco UPF-7 127 with this engine series
Boeing B75 Stearman Kaydet 120 with this engine series
Cessna 190 60 with this engine series
Boeing E75 Stearman Kaydet 59 with this engine series
Boeing D75 19 with this engine series
Fairchild(Howard) M-62 16 with this engine series
Boeing PT-17 15 with this engine series

Where they are

Texas 101 of these aircraft
California 78 of these aircraft
Florida 73 of these aircraft
Illinois 57 of these aircraft
Delaware 52 of these aircraft

Biggest operators

Plane Fun INC Tr Trustee 11 of these aircraft
Eastern Stearman INC Trustee 8 of these aircraft
Aerospace Trust Management LLC Trustee 8 of these aircraft
Southern Aircraft Consultancy INC Trustee 6 of these aircraft
Independent Dusting Svc INC 5 of these aircraft

Airworthiness

FAA orders naming the Continental W670 series 1 airworthiness directives
Failure reports on the Continental W670 series 8 reports since 1995

Analytics

These connections as data: /graph/engine/continental-w670-series.json · about the eFlight graph.

Aircraft newest certificates first · 987

Tail no.	Maker and model	Group	Owner and base	Certificate	Registered	Status
N7PM	Boeing A75L300	Fixed-wing, single engine	Individual owner Florida	Standard	1990-06-19	Valid
N13442	Waco UBF	Fixed-wing, single engine	Owls Head Transportation Museum Owls Head, Maine	Standard	1990-06-18	Valid
N4439N	Boeing B75N1	Fixed-wing, single engine	Individual owner Arkansas	Standard	1990-03-08	Valid
N66461	Boeing B75N1	Fixed-wing, single engine	Individual owner Florida	Standard	1989-12-04	Valid
N65693	Boeing B75N1	Fixed-wing, single engine	Individual owner Illinois	Standard	1989-11-01	Valid
N9739	Bird BK	Fixed-wing, single engine	Individual owner New York	Experimental	1989-10-27	Valid
N5403N	Boeing B75N1	Fixed-wing, single engine	Individual owner Kentucky	Standard	1989-10-04	Valid
N67413	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner Missouri	Standard	1989-05-22	Valid
N184E	Waco UPF-7	Fixed-wing, single engine	Ciabattoni Joseph L Upland, California	Standard	1989-04-14	Valid
N30171	Waco UPF-7	Fixed-wing, single engine	Individual owner Ohio	Standard	1989-02-17	Valid
N60416	Boeing A75	Fixed-wing, single engine	Individual owner New York	Standard	1988-11-15	Valid
N32107	Waco UPF-7	Fixed-wing, single engine	Individual owner Alabama	Standard	1988-10-27	Valid
N9398A	Cessna 190	Fixed-wing, single engine	Individual owner South Dakota	Standard	1988-10-18	Valid
N555J	Boeing B75N1	Fixed-wing, single engine	Individual owner Alabama	Standard	1988-08-12	Valid
N58446	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner Florida	Multiple	1988-04-07	Valid
N5049V	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner Michigan	Standard	1987-11-06	Valid
N3182G	Terteling AVRO 504K	Fixed-wing, single engine	Individual owner Florida	Experimental	1987-07-21	Valid
N32135	Waco UPF-7	Fixed-wing, single engine	Individual owner California	Multiple	1987-04-09	Valid
N47033	Boeing PT-17	Fixed-wing, single engine	Individual owner California	Standard	1987-01-09	Valid
N55361	Boeing A75N1(PT17)	Fixed-wing, single engine	Owls Head Transportation Museum Owls Head, Maine	Standard	1986-09-10	Valid
N9383H	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner Minnesota	Experimental	1986-03-31	Valid
N96X	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner Ohio	Standard	1986-03-24	Valid
N55902	Boeing PT-17	Fixed-wing, single engine	Kw Plastics Troy, Alabama	Standard	1985-05-18	Valid
N73HA	Fairchild(Howard) M-62C(PT-23A)	Fixed-wing, single engine	Individual owner Massachusetts	Standard	1985-03-21	Valid
N9500	Waco ASO	Fixed-wing, single engine	Individual owner North Carolina	Restricted	1984-12-01	Valid
N66053	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner Minnesota	Standard	1984-09-07	Valid
N8801Y	Eagle Aircraft Co EAGLE DW-1	Fixed-wing, single engine	Individual owner California	Restricted	1984-08-22	Valid
N66123	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner Mississippi	Standard	1984-06-13	Valid
N55556	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner Florida	Standard	1983-10-03	Valid
N9362A	Cessna 190	Fixed-wing, single engine	Individual owner Mississippi	Standard	1983-08-17	Valid
N65356	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner Texas	Restricted	1983-05-25	Valid
N1729	Curtis Richard D FOKKER DR1 TRIPLANE	Fixed-wing, single engine	Individual owner Kansas	Experimental	1983-03-31	Valid
N9848A	Cessna 190	Fixed-wing, single engine	Individual owner California	Standard	1982-12-07	Valid
N13570	Waco UIC	Fixed-wing, single engine	Individual owner Texas	Standard	1982-10-14	Valid
N3099B	Cessna 190	Fixed-wing, single engine	Individual owner Oklahoma	Standard	1982-07-19	Valid
N1473	Curtiss Wright TRAVEL AIR 4000	Fixed-wing, single engine	Individual owner Oregon	Restricted	1982-05-19	Valid
N9031	Travel Air 4000	Fixed-wing, single engine	Individual owner California	Standard	1982-04-13	Valid
N8806Y	Eagle Aircraft Co EAGLE DW-1	Fixed-wing, single engine	Precissi Flying Service INC Lodi, California	Restricted	1982-04-07	Valid
N5793	Laird WHIRLWIND	Fixed-wing, single engine	Co-owned owner Ohio	Restricted	1982-01-26	Valid
N2457	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner California	Standard	1982-01-12	Valid
N8700	Curtiss Wright TRAVEL AIR 4000	Fixed-wing, single engine	Individual owner California	Standard	1981-02-12	Valid
N63115	Fairchild(Howard) M-62C(PT-23A)	Fixed-wing, single engine	Co-owned owner Arizona	Standard	1980-07-18	Valid
N8800R	Eagle Aircraft Co.-Bellanca EAGLE DW-1	Fixed-wing, single engine	Prescissi Flying Service INC Lodi, California	Experimental	1980-07-11	Valid
N21EC	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner New York	Standard	1980-04-24	Valid
N59768	Boeing D75N1	Fixed-wing, single engine	Individual owner Pennsylvania	Standard	1979-12-04	Valid
N65851	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner Indiana	Standard	1979-12-01	Valid
N50739	Boeing D75N1	Fixed-wing, single engine	Individual owner Ohio	Standard	1979-10-10	Valid
N8035T	Scesa Joseph Denny FOKKER DR-I	Fixed-wing, single engine	Individual owner Maryland	Experimental	1979-09-20	Valid
N63712	Boeing B75N1	Fixed-wing, single engine	Individual owner Michigan	Standard	1979-05-10	Valid
N64502	Boeing B75N1	Fixed-wing, single engine	Individual owner Wisconsin	Standard	1978-12-12	Valid
N59274	Boeing A75	Fixed-wing, single engine	Individual owner Virginia	Restricted	1978-08-09	Valid
N1CZ	Cessna 190	Fixed-wing, single engine	Individual owner Oregon	Standard	1978-02-28	Valid
N837V	Waco QSO	Fixed-wing, single engine	Individual owner Kansas	Restricted	1978-02-24	Valid
N379M	Travel Air C-4000	Fixed-wing, single engine	Individual owner California	Standard	1978-01-10	Valid
N55271	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner Missouri	Standard	1977-06-20	Valid
N496Y	Grumman G-164	Fixed-wing, single engine	Individual owner Illinois	Restricted	1976-09-16	Valid
N46819	Boeing A75	Fixed-wing, single engine	Individual owner Georgia	Standard	1976-04-06	Valid
N5521N	Boeing B75N1	Fixed-wing, single engine	Individual owner Missouri	Standard	1975-11-05	Valid
N4979C	Snow S2A	Fixed-wing, single engine	Trissell Flying Ser INC Clarksville, Texas	Restricted	1975-01-09	Valid
N59695	Boeing B75N1	Fixed-wing, single engine	Individual owner Texas	Standard	1973-10-29	Valid
N4952	Curtiss Wright TRAVEL AIR 2000	Fixed-wing, single engine	Individual owner Georgia	Standard	1973-07-24	Valid
N72BA	Boeing A75N1(PT17)	Fixed-wing, single engine	Bob Air INC Gastonia, North Carolina	Standard	1972-04-18	Valid
N51443	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner Illinois	Standard	1971-05-20	Valid
N49934	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner South Carolina	Restricted	1971-04-05	Valid
N1636M	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner South Carolina	Standard	1971-03-24	Valid
N52463	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner South Carolina	Restricted	1971-03-24	Valid
N66470	Boeing A75	Fixed-wing, single engine	Independent Dusting Service INC El Campo, Texas	Standard	1969-09-02	Valid
N66417	Boeing B75N1	Fixed-wing, single engine	Individual owner Illinois	Standard	1969-07-11	Valid
N566Z	Stearman Aircraft C3-R	Fixed-wing, single engine	Individual owner Florida	Standard	1969-02-03	Valid
N13427	Waco UIC	Fixed-wing, single engine	Individual owner Washington	Standard	1969-01-17	Valid
N190DF	Cessna 190	Fixed-wing, single engine	Individual owner Washington	Standard	1968-07-01	Valid
N65293	Boeing B75N1	Fixed-wing, single engine	Independent Dusting Svc INC El Campo, Texas	Restricted	1966-12-19	Valid
N7873B	Boeing E75N1	Fixed-wing, single engine	Independent Dusting Service INC El Campo, Texas	Restricted	1959-12-01	Valid
N63916	Boeing A75	Fixed-wing, single engine	Independent Dusting Svc INC El Campo, Texas	Restricted	1955-08-02	Valid
N75758	Boeing B75N1	Fixed-wing, single engine	Independent Dusting Svc INC El Campo, Texas	Restricted	1955-08-02	Valid
N3997B	Boeing E75	Fixed-wing, single engine	Independent Dusting Service INC El Campo, Texas	Restricted	1955-03-28	Valid
N61359	Boeing A75N1(PT17)	Fixed-wing, single engine	Rucker Bros Flying Svc Burdett, Kansas	Limited	1952-11-18	Valid
N4863N	Boeing A75L3	Fixed-wing, single engine	Independent Dusting Svc INC El Campo, Texas	Restricted	1949-09-12	Valid
N4865N	Boeing A75L3	Fixed-wing, single engine	Independent Dusting Svc INC El Campo, Texas	Restricted	1949-09-12	Valid
N12438	Waco QDC	Fixed-wing, single engine	Individual owner California	Standard		Sale reported
N3085D	Boeing PT-17	Fixed-wing, single engine	No Name Aviation LLC Wilmington, Delaware	Standard		Valid
N60593	Fairchild M-62A	Fixed-wing, single engine	Individual owner Oklahoma	Standard		Sale reported
N65101	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner Connecticut	Standard		Pending cancellation
N671N	Waco CSO	Fixed-wing, single engine	No owner on file	Standard		Pending cancellation
N68781	Stinson L-5E	Fixed-wing, single engine	Individual owner Wisconsin	Restricted		Pending
N68974	Boeing PT-13D	Fixed-wing, single engine	Indy Air Sales LLC Anderson, Indiana	Standard		Valid
N69655	Boeing A75N1(PT17)	Fixed-wing, single engine	Individual owner Washington	Standard		Pending

Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 7, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.