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

Wright CURTISS OX5

59 aircraft on the U.S. register carry a Wright CURTISS OX5 engine, rated at about 90 horsepower. The Waco GXE is the model most often fitted with it (12 aircraft). The aircraft carrying it were built between 1917 and 1930.

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 Wright CURTISS OX5. FAA spelling: CURTISS OX5.

Fitted to model families

Waco GXE12Fairchild KR-316Curtiss Wright ROBIN5Travel Air Mfg Co 20005Waco 105Bird A2Command-Aire 32Curtiss Wright TRAVEL AIR 40002Swallow SWALLOW2Swallow TP2Travel Air 40002Waco 92

Waco GXE · Fairchild KR-31 · Curtiss Wright ROBIN · Travel Air Mfg Co 2000 · Waco 10 · Bird A · Command-Aire 3 · Curtiss Wright TRAVEL AIR 4000 · Swallow SWALLOW · Swallow TP

Where they are owner's state

California12Texas6Oregon5Missouri5Pennsylvania4New York4Florida3Oklahoma2Ohio2Michigan2

Kind of aircraft

Piston singles59 (100%)

When the aircraft were built by decade

What the FAA has certified, ordered and been told about the Wright CURTISS OX5 the component layer

The design is held under 1 type certificate (Group 2 Curtiss OX-5, held by Wright Aeronautical Division Curtiss-Wright Corporation). No FAA order in the current files names this engine series.

Certificates and bulletins

Group 2 Curtiss OX-5Type certificate held by Wright Aeronautical Division Curtiss-Wright Corporation · 1 model listed · revised July 15, 1929

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

Waco GXE 12 with this engine series
Fairchild KR-31 6 with this engine series
Curtiss Wright ROBIN 5 with this engine series
Travel Air Mfg Co 2000 5 with this engine series
Waco 10 5 with this engine series
Bird A 2 with this engine series
Command-Aire 3 2 with this engine series
Curtiss Wright TRAVEL AIR 4000 2 with this engine series

Where they are

California 12 of these aircraft
Texas 6 of these aircraft
Oregon 5 of these aircraft
Missouri 5 of these aircraft
Pennsylvania 4 of these aircraft

Biggest operators

Western Antique Aeroplane & Automobile Museum 5 of these aircraft
Freeman Heritage Collection LLC 2 of these aircraft
Worlds Greatest Aircraft Collection INC 1 of these aircraft

Analytics

These connections as data: /graph/engine/wright-curtiss-ox5.json · about the eFlight graph.

Aircraft newest certificates first · 59

Tail no.	Maker and model	Group	Owner and base	Certificate	Registered	Status
N204H	Fairchild KR-31	Fixed-wing, single engine	Massey Air Museum INC Massey, Maryland	Standard	2026-06-25	Valid
N2975	Curtiss JN4D	Fixed-wing, single engine	Co-owned owner California	Experimental	2025-06-11	Valid
N5273	Waco GXE	Fixed-wing, single engine	Ranger Airfield Foundation Ranger, Texas	Standard	2025-02-27	Valid
N7912	Curtiss Wright ROBIN	Fixed-wing, single engine	Individual owner Arizona	Standard	2023-10-11	Valid
N9181	Bird A	Fixed-wing, single engine	Co-owned owner California	Standard	2023-08-19	Valid
N9848	Travel Air Mfg Co 2000	Fixed-wing, single engine	Travel Air 4000 LLC Cedar Springs, Michigan	Standard	2023-03-27	Valid
N3738	American Eagle 101	Fixed-wing, single engine	Individual owner Florida	Standard	2023-02-15	Valid
N6974	Waco GXE	Fixed-wing, single engine	Co-owned owner California	Standard	2023-02-15	Valid
N7744	Fairchild KR-31	Fixed-wing, single engine	Co-owned owner California	Standard	2023-02-15	Valid
N40K	Perth Amboy BIRD A	Fixed-wing, single engine	Individual owner Texas	Standard	2022-12-23	Valid
N8755T	Swallow TP	Fixed-wing, single engine	Western Antique Aeroplane & Automobile Museum Hood River, Oregon	None on file	2021-07-27	Valid
N7885	Command-Aire 3C-3	Fixed-wing, single engine	Individual owner Georgia	Standard	2021-06-09	Valid
N6278	Travel Air Mfg Co 2000	Fixed-wing, single engine	Individual owner California	Standard	2021-05-03	Valid
N4534	Waco GXE	Fixed-wing, single engine	Freeman Heritage Collection LLC Kingsbury, Texas	Standard	2021-03-15	Valid
N8564	Waco GXE	Fixed-wing, single engine	Individual owner New York	Standard	2021-01-25	Valid
N920H	Waco GXE	Fixed-wing, single engine	Individual owner Oklahoma	Standard	2020-07-30	Valid
N418V	Roos LINCOLN PAGE 1928	Fixed-wing, single engine	Charles H and Isabell Blosser Foundation Aurora, Colorado	Standard	2020-04-23	Valid
N206Y	Eaglerock A-1	Fixed-wing, single engine	Co-owned owner California	Standard	2020-03-30	Valid
N4777	Waco GXE	Fixed-wing, single engine	Co-owned owner Ohio	Standard	2020-02-24	Valid
N4779	Waco 10	Fixed-wing, single engine	Co-owned owner California	Standard	2019-02-11	Valid
N4289	American Eagle A-1	Fixed-wing, single engine	Individual owner California	Standard	2018-12-17	Valid
N979	Swallow SWALLOW	Fixed-wing, single engine	Individual owner California	Standard	2018-10-25	Valid
N136E	Command-Aire 3C-3	Fixed-wing, single engine	Individual owner California	Standard	2018-08-30	Valid
N3945	Travel Air 4000	Fixed-wing, single engine	Co-owned owner California	Standard	2018-07-26	Valid
N4720G	Thomas 2	Fixed-wing, single engine	Rhinebeck Aerodrome Museum Rhinebeck, New York	Experimental	2018-03-06	Valid
N6282	Travel Air Mfg Co 2000	Fixed-wing, single engine	Shannon Air Museum LLC Fredericksburg, Virginia	Standard	2017-12-07	Valid
N832W	Bird A	Fixed-wing, single engine	Individual owner New York	Standard	2017-11-28	Valid
N8333	Curtiss Wright ROBIN	Fixed-wing, single engine	Individual owner Illinois	Standard	2017-05-23	Valid
N940	Waco 10	Fixed-wing, single engine	Rhineback Aerodrome Museum Rhinebeck, New York	Standard	2017-04-17	Valid
N6675K	Waco GXE	Fixed-wing, single engine	Historic Aircraft Restoration Museum Saint Louis, Missouri	Standard	2017-04-14	Valid
N787Y	Brunner-Winkle BIRD A	Fixed-wing, single engine	Western Antique Aeroplane & Automobile Museum Hood River, Oregon	Standard	2016-09-19	Valid
N856E	Swallow TP	Fixed-wing, single engine	Co-owned owner Wisconsin	Standard	2016-07-12	Valid
N139E	Waco 9	Fixed-wing, single engine	Western Antique Aeroplane & Automobile Museum Hood River, Oregon	Standard	2015-08-28	Valid
N6939	Waco GXE	Fixed-wing, single engine	Aas LLC Ovid, Michigan	Standard	2014-11-12	Valid
N6507	Waco 10	Fixed-wing, single engine	Individual owner Ohio	Standard	2014-04-02	Valid
N4418	Curtiss Wright TRAVEL AIR 4000	Fixed-wing, single engine	Aerospace Trust Management LLC Trustee Wilmington, Delaware	Standard	2014-03-13	Valid
N7797	Swallow SWALLOW	Fixed-wing, single engine	Western Antique Aeroplane & Automobile Museum Hood River, Oregon	Standard	2013-06-10	Valid
N10290	Fairchild KR-31	Fixed-wing, single engine	Aircraft Guaranty CORP Trustee Oklahoma City, Oklahoma	Standard	2013-01-15	Valid
N5784	Waco GXE	Fixed-wing, single engine	Individual owner Illinois	Standard	2012-12-04	Valid
N8313	Curtiss Wright ROBIN	Fixed-wing, single engine	Worlds Greatest Aircraft Collection INC Polk City, Florida	Standard	2010-09-29	Valid
N8100	Travel Air Mfg Co 2000	Fixed-wing, single engine	Individual owner Florida	Standard	2010-04-08	Valid
N5132	Waco 10	Fixed-wing, single engine	Individual owner North Dakota	Standard	2010-01-12	Valid
N5283	Curtiss Wright TRAVEL AIR 4000	Fixed-wing, single engine	Individual owner Kentucky	Standard	2009-06-29	Valid
N76F	Curtiss Wright ROBIN	Fixed-wing, single engine	Individual owner Pennsylvania	Standard	2008-07-24	Valid
N7970	Waco GXE	Fixed-wing, single engine	Texas Air Museum INC San Antonio, Texas	Standard	2008-05-29	Valid
N6513	Waco 10	Fixed-wing, single engine	Western Antique Aeroplane & Automobile Museum Hood River, Oregon	Standard	2008-02-19	Valid
N7563	Fairchild KR-31	Fixed-wing, single engine	Freeman Heritage Collection LLC Kingsbury, Texas	Standard	2007-08-25	Valid
N8529	Waco GXE	Fixed-wing, single engine	Individual owner Iowa	Standard	2005-08-12	Valid
N6147	Travel Air Mfg Co 2000	Fixed-wing, single engine	Port Townsend Aero Museum Port Townsend, Washington	Standard	2004-05-13	Valid
N2574	Waco 9	Fixed-wing, single engine	Historical Society of Western Pennsylvania Pittsburgh, Pennsylvania	Standard	2001-03-15	Valid
N3615	Fairchild KR-31	Fixed-wing, single engine	Co-owned owner Missouri	Standard	1998-05-04	Valid
N263E	Curtiss Wright ROBIN	Fixed-wing, single engine	Individual owner Missouri	Standard	1998-04-17	Valid
N3261	Pitcairn PA-4	Fixed-wing, single engine	Individual owner Maryland	Standard	1998-04-16	Valid
N2297	Winstead Bros Airplane Co WINSTEAD SPECIAL	Fixed-wing, single engine	Individual owner Pennsylvania	Standard	1995-09-14	Valid
N807E	American Eagle 129	Fixed-wing, single engine	Individual owner Texas	Standard	1993-03-23	Valid
N5796	Fairchild KR-31	Fixed-wing, single engine	Co-owned owner California	Standard	1992-01-24	Valid
N90539	Travel Air 4000	Fixed-wing, single engine	Individual owner Missouri	Standard	1977-03-28	Valid
N3963	Waco GXE	Fixed-wing, single engine	Individual owner Pennsylvania	None on file	1966-11-10	Valid
N5290	Curtiss Wright TRAVEL AIR 2000	Fixed-wing, single engine	Individual owner Missouri	Standard		Pending cancellation

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.