Engines · piston (reciprocating) · data as of October 5, 2026

Wright R-1820 series

185 aircraft on the U.S. register carry a Wright R-1820 series engine, rated at about 1475 horsepower. The North American T-28 is the model most often fitted with it (93 aircraft). The aircraft carrying it were built between 1938 and 1993.

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 R-1820 series. FAA spelling: R-1820 SER.

Fitted to model families

North American T-2893Grumman HU-1621Boeing B-178Grumman S-27Sikorsky S-586Grumman FM-25Grumman Aircraft Eng Corp C-1A4Douglas SUPER R4D-83Grumman F3F-23Douglas DC-33Ayres Corporation S-22Grumman TF-1(C-1A)2

North American T-28 · Grumman HU-16 · Boeing B-17 · Grumman S-2 · Sikorsky S-58 · Grumman FM-2 · Grumman Aircraft Eng Corp C-1A · Douglas SUPER R4D-8 · Grumman F3F-2 · Douglas DC-3

Where they are owner's state

Texas25California25Florida17Washington12Delaware9Nevada8Virginia7Oregon6Colorado6Oklahoma5

Kind of aircraft

Piston singles125 (68%)Piston twins49 (26%)Helicopters7 (4%)Turboprops4 (2%)

When the aircraft were built by decade

What the FAA has certified, ordered and been told about the Wright R-1820 series the component layer

No FAA order in the current files names this engine series. Operators and repair shops have filed 12 failure reports with the FAA since 1995, 4 of them in the last ten years.

Failure reports 12 since · what operators and shops told the FAA

Parts most often reported as the reports name them

Bolt1Control Tube1Cylinder1Engine1Filter1Fitting1Mount1Pump1Stator1Support Bracket1

Latest reports

2023-11-06Fitting: corroded

2023-04-06Wing Root: fractured

2017-07-03Bolt: sheared

2015-08-26Control Tube: broken

2013-07-01Pump: failed

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

North American T-28 93 with this engine series
Grumman HU-16 21 with this engine series
Boeing B-17 8 with this engine series
Grumman S-2 7 with this engine series
Sikorsky S-58 6 with this engine series
Grumman FM-2 5 with this engine series
Douglas DC-3 3 with this engine series
Ayres Corporation S-2 2 with this engine series

Where they are

Texas 25 of these aircraft
California 25 of these aircraft
Florida 17 of these aircraft
Washington 12 of these aircraft
Delaware 9 of these aircraft

Biggest operators

Vi 1 LLC 5 of these aircraft
Comanche Warbirds INC 3 of these aircraft
Wpp Nautical LLC 2 of these aircraft
Tsi Holdco INC 2 of these aircraft

Airworthiness

Failure reports on the Wright R-1820 series 12 reports since 1995

Analytics

These connections as data: /graph/engine/wright-r-1820-series.json · about the eFlight graph.

Aircraft newest certificates first · 185

Tail no.	Maker and model	Group	Owner and base	Certificate	Registered	Status
N99TP	Grumman HU-16	Fixed-wing, multi-engine	Amphibian Aerospace Industries Defense INC Leesburg, Virginia	Experimental	2026-08-18	Valid
N46273	North American T-28C	Fixed-wing, single engine	N46273 LLC Alpine, Wyoming	Experimental	2026-07-22	Valid
N70133	Grumman HU-16C	Fixed-wing, multi-engine	Deeside Trading LLC Sparks, Nevada	Restricted	2026-06-10	Valid
N86572	Grumman FM-2	Fixed-wing, single engine	Wpp Nautical LLC Helena, Montana	Limited	2026-05-25	Valid
N223E	North American T-28B	Fixed-wing, single engine	Individual owner Texas	Experimental	2026-05-01	Valid
N745W	North American T-28C	Fixed-wing, single engine	Lund Investments LLC Newport Beach, California	Experimental	2026-04-30	Valid
N128KA	North American T-28B	Fixed-wing, single engine	R&R Exotic Machines LLC Peoria, Arizona	Experimental	2026-04-25	Valid
N228JK	North American T-28B	Fixed-wing, single engine	Individual owner Texas	Experimental	2026-04-11	Valid
N632NA	North American T-28D	Fixed-wing, single engine	Individual owner Texas	Experimental	2026-04-02	Valid
N306WW	North American T-28B	Fixed-wing, single engine	International Air Services INC Trustee Carson City, Nevada	Experimental	2026-03-09	Valid
N462NA	North American T-28C	Fixed-wing, single engine	Topaero Aviation Consulting LLC Coronado, California	Experimental	2026-03-08	Valid
N138RR	North American T-28B	Fixed-wing, single engine	Wpp Nautical LLC Helena, Montana	Experimental	2026-02-28	Valid
N868KG	Grumman HU 16E	Fixed-wing, multi-engine	Amphibian Aerospace Industries INC Leesburg, Virginia	Restricted	2026-02-06	Valid
N89AW	North American T-28B	Fixed-wing, single engine	Euroaviation INC Trustee Kematen,	Experimental	2025-10-27	Valid
N28CV	North American/Bellek T-28C	Fixed-wing, single engine	Kamikaze Air LLC Lake Mary, Florida	Experimental	2025-10-03	Valid
N9025Y	North American T-28C	Fixed-wing, single engine	AG Air INC Sikeston, Missouri	Experimental	2025-06-24	Valid
N379DM	North American T-28F	Fixed-wing, single engine	Individual owner Iowa	Experimental	2025-06-13	Valid
N9039Z	North American T-28B	Fixed-wing, single engine	Individual owner Texas	Experimental	2025-05-08	Valid
N140AG	North American T-28C	Fixed-wing, single engine	Eagle Defense Aviation LLC Lone Tree, Colorado	Experimental	2025-04-04	Valid
N93RW	Douglas A-24B	Fixed-wing, single engine	N93Rw LLC Granite Falls, Minnesota	Experimental	2025-03-31	Valid
N587MB	Douglas DC-3S/R4D-8	Fixed-wing, multi-engine	Tm Aero Marine INC North Miami, Florida	Standard	2025-02-27	Valid
N31NA	North American T-28B	Fixed-wing, single engine	Northern Flight LLC Bismarck, North Dakota	Experimental	2025-02-21	Valid
N710VC	Grumman S2F-1 (TS-2A)	Fixed-wing, multi-engine	Cactus Air Force LLC Dayton, Nevada	Restricted	2025-02-05	Valid
N14114	North American T-28B	Fixed-wing, single engine	Individual owner Massachusetts	Experimental	2025-01-19	Valid
N28ZZ	North American T-28C	Fixed-wing, single engine	Individual owner Oregon	Experimental	2025-01-08	Valid
N128RC	North American T-28A	Fixed-wing, single engine	5G Wings LLC Montgomery, Texas	Experimental	2024-11-06	Valid
N3193G	Boeing B-17G	Fixed-wing, multi-engine	Individual owner Oregon	Limited	2024-10-30	Valid
N28FU	North American T-28B	Fixed-wing, single engine	Individual owner California	Experimental	2024-10-18	Valid
N83AW	North American T-28B	Fixed-wing, single engine	Cem Aero LLC Helena, Montana	Experimental	2024-09-30	Valid
N280CM	North American T-28B	Fixed-wing, single engine	Higar Air Service INC Redlands, California	Experimental	2024-09-24	Valid
N125DR	North American T-28B	Fixed-wing, single engine	Aviatte Air LLC Fort Wayne, Indiana	Experimental	2024-09-07	Valid
N28XX	North American T-28B	Fixed-wing, single engine	Individual owner Florida	Experimental	2024-07-17	Valid
N888AC	Grumman HU-16	Fixed-wing, multi-engine	Withheld at owner's request	Restricted	2024-07-17	Valid
N99160	North American T-28D	Fixed-wing, single engine	Tsi Holdco INC Virginia Beach, Virginia	Experimental	2024-05-16	Valid
N22518	North American-Medore SNJ-4	Fixed-wing, single engine	Tsi Holdco INC Virginia Beach, Virginia	Experimental	2024-05-15	Valid
N85303	Grumman HU-16B	Fixed-wing, multi-engine	Duckbutt LLC Castle Rock, Colorado	Experimental	2024-04-18	Valid
N8039S	North American T-28C	Fixed-wing, single engine	Trojan Phlyers INC Carrollton, Texas	Experimental	2024-01-16	Valid
N662WW	North American T-28B	Fixed-wing, single engine	Sea Horse Sportfishing LLC Clinton, North Carolina	Experimental	2024-01-13	Valid
N649DF	North American T-28C	Fixed-wing, single engine	Three Generations Holding LLC Augusta, Georgia	Experimental	2024-01-10	Valid
N116AG	Grumman HU-16C	Fixed-wing, multi-engine	R P Air INC Mendota Heights, Minnesota	Restricted	2024-01-08	Valid
N648LW	North American T-28C	Fixed-wing, single engine	Individual owner Washington	Experimental	2023-12-18	Valid
N284MS	North American T-28B	Fixed-wing, single engine	Four Aces Aviations LLC Greensboro, Georgia	Experimental	2023-08-18	Valid
N14144	North American T-28D	Fixed-wing, single engine	Cal-Aerofab Flight Academy INC Chino, California	Experimental	2023-07-31	Valid
N211MC	Grumman HU-16B	Fixed-wing, multi-engine	Individual owner Illinois	Restricted	2023-06-29	Valid
N313WB	North American T-28B	Fixed-wing, single engine	Qualitair LLC Trustee Michelstadt,	Experimental	2023-06-21	Valid
N1184T	North American T-28C	Fixed-wing, single engine	Florida Warbirds LLC Cape Coral, Florida	Experimental	2023-06-07	Valid
N736MA	Grumman S2F-1	Fixed-wing, multi-engine	Individual owner Kansas	Restricted	2023-06-07	Valid
N216HU	Grumman HU-16	Fixed-wing, multi-engine	Individual owner Arizona	Experimental	2023-05-02	Valid
N91AW	North American T-28B	Fixed-wing, single engine	Trojan Flight Operations LLC Marion, Indiana	Experimental	2023-04-28	Valid
N752WW	North American T-28B	Fixed-wing, single engine	Heritage of Eagles Air Museum Firebaugh, California	Experimental	2023-03-29	Valid
N115FB	Grumman HU 16E	Fixed-wing, multi-engine	Freeman Jet LLC Cape Coral, Florida	Special flight permit	2023-03-21	Valid
N189G	Grumman Aircraft Eng Corp C-1A	Fixed-wing, multi-engine	Cod Aviation LLC Oklahoma City, Oklahoma	Experimental	2023-01-23	Valid
N746SH	North American T-28C	Fixed-wing, single engine	Individual owner Arizona	Experimental	2022-12-28	Valid
N766NA	North American/Sullivan T-28D	Fixed-wing, single engine	Individual owner Ohio	Experimental	2022-11-29	Valid
N226AH	North American T-28D	Fixed-wing, single engine	Oklahoma Fat Tire Flyers LLC Owasso, Oklahoma	Experimental	2022-09-27	Valid
N226GR	Grumman HU 16E	Fixed-wing, multi-engine	Individual owner Virginia	Experimental	2022-08-09	Valid
N255NA	North American T-28C	Fixed-wing, single engine	Bobcat Aviation LLC South Hutchinson, Kansas	Experimental	2022-08-04	Valid
N8331R	North American T-28B	Fixed-wing, single engine	Warbirds 1 LLC Chattanooga, Tennessee	Experimental	2022-08-01	Valid
N20RW	Grumman F3F-2	Fixed-wing, single engine	Air Legends Foundation San Antonio, Texas	Experimental	2022-03-18	Valid
N44GH	Douglas SUPER R4D-8	Fixed-wing, multi-engine	Flight Data INC Roanoke, Texas	Standard	2022-02-25	Valid
N107NA	North American T-28B	Fixed-wing, single engine	Individual owner California	Experimental	2022-02-16	Valid
N64606	Vertol H21B	Rotorcraft	Classic Rotors Museum Ramona, California	Experimental	2021-12-15	Valid
N23ES	North American T-28A	Fixed-wing, single engine	Individual owner Washington	Experimental	2021-11-12	Valid
N78378	North American T-28C	Fixed-wing, single engine	Barton Aviation LLC San Antonio, Texas	Experimental	2021-10-15	Valid
N14103	North American T-28B	Fixed-wing, single engine	Co-owned owner Florida	Experimental	2021-10-13	Valid
N98TP	Grumman HU-16B	Fixed-wing, multi-engine	Trousdale Aviation LLC Wilmington, Delaware	Experimental	2021-09-27	Valid
N187GH	North American T-28C	Fixed-wing, single engine	Lasc Aviation INC Callaway, Florida	Experimental	2021-09-13	Valid
N390TH	Boeing B-17G	Fixed-wing, multi-engine	Liberty Foundation INC Miami, Florida	Limited	2021-08-12	Valid
N7025N	Grumman HU-16	Fixed-wing, multi-engine	Bussted LLC Wilmington, Delaware	Experimental	2021-07-08	Valid
N28XT	North American T-28B	Fixed-wing, single engine	East Iowa Air INC Bennett, Iowa	Experimental	2021-06-17	Valid
N909WJ	Grumman FM-2	Fixed-wing, single engine	Wildcat Fm-2 INC Trustee Wilmington, Delaware	Limited	2021-06-14	Valid
N9924C	Grumman Acft Eng Cor-Schweizer G-164C	Fixed-wing, single engine	Richter Aviation INC Maxwell, California	Restricted	2021-06-14	Valid
N7025J	Grumman HU-16	Fixed-wing, multi-engine	Sky West Aviation INC Trustee Albuquerque, New Mexico	Experimental	2021-04-15	Valid
N31957	Grumman S2F-1	Fixed-wing, multi-engine	Marine Aviation Museum INC Wilmington, Delaware	Experimental	2021-03-19	Valid
N43155	Grumman HU-16	Fixed-wing, multi-engine	Tactical Flight Ops LLC Camarillo, California	Restricted	2021-02-09	Valid
N88AW	North American T-28B	Fixed-wing, single engine	Individual owner Colorado	Experimental	2021-01-28	Valid
N75947	North American / Bumgarner T-28C	Fixed-wing, single engine	Rodney William Debaun Family Limited Partnership Midlothian, Texas	Experimental	2021-01-22	Valid
N887N	North American T-28B	Fixed-wing, single engine	Individual owner Wisconsin	Experimental	2021-01-13	Valid
N220NA	North American/Armoflex Inc T-28B	Fixed-wing, single engine	International Air Services INC Trustee Carson City, Nevada	Experimental	2020-12-12	Valid
N31428	North American T-28C	Fixed-wing, single engine	Eastern Stearman INC Trustee Leesburg, Virginia	Experimental	2020-12-07	Valid
N232TK	North American T-28C	Fixed-wing, single engine	Individual owner Indiana	Experimental	2020-10-17	Valid
N68803	North American T-28B	Fixed-wing, single engine	Quantum Leasing LLC Scottsdale, Arizona	Experimental	2020-08-14	Valid
N128BC	North American T-28A	Fixed-wing, single engine	N128Bc LLC Conroe, Texas	Experimental	2020-08-07	Valid
N2215D	North American T-28C	Fixed-wing, single engine	Draken International LLC Lakeland, Florida	Experimental	2020-07-02	Valid
N2800G	North American T-28A	Fixed-wing, single engine	Aircraft Guaranty CORP Trustee Oklahoma City, Oklahoma	Experimental	2020-06-19	Valid
N71456	Grumman Aircraft Eng Corp C-1A	Fixed-wing, multi-engine	Individual owner Arizona	Experimental	2020-04-21	Valid
N226CG	Grumman HU-16B	Fixed-wing, multi-engine	Morlock INC Lewes, Delaware	Restricted	2020-04-09	Valid
N63NA	North American T-28B	Fixed-wing, single engine	Individual owner Washington	Experimental	2019-07-25	Valid
N300JH	North American T-28B	Fixed-wing, single engine	Fly Jive Fly LLC Lake Wales, Florida	Experimental	2019-07-02	Valid
N866HA	Grumman HU-16B	Fixed-wing, multi-engine	Individual owner Texas	Experimental	2019-06-27	Valid
N9796N	Douglas R4D-8	Fixed-wing, multi-engine	Fourrier Foundation INC Dallas, Texas	Standard	2019-05-22	Valid
N548NA	North American T-28C	Fixed-wing, single engine	Bga Viation INC Bennettsville, South Carolina	Experimental	2019-04-18	Valid
N28CT	North American T-28B	Fixed-wing, single engine	Individual owner Wisconsin	Experimental	2019-03-18	Valid
N207EV	Boeing B-17G	Fixed-wing, multi-engine	Collings Foundation Stow, Massachusetts	Limited	2019-02-23	Valid
N661NA	North American T-28C	Fixed-wing, single engine	Valkyrieaero LLC Idaho Springs, Colorado	Experimental	2019-02-11	Valid
N778SR	Grumman TF-1(C-1A)	Fixed-wing, multi-engine	Champaign Aviation Museum Urbana, Ohio	Experimental	2019-01-15	Valid
N128JC	North American T-28C	Fixed-wing, single engine	Dk Air LLC Brookings, Oregon	Experimental	2018-12-18	Valid
N28XC	North American T-28C	Fixed-wing, single engine	Individual owner Texas	Experimental	2018-09-15	Valid
N703SC	Sikorsky S58E	Rotorcraft	Vi 1 LLC Brewster, Washington	Standard	2018-06-12	Valid
N28CU	North American T-28B	Fixed-wing, single engine	Individual owner California	Experimental	2017-10-02	Valid

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.