The U.S. aircraft register, updated daily · Carbon Free Flight by 2050
Models · North American · Piston singles · data as of October 2, 2026

North American HARVARD 4

5 on the U.S. register. Built from 1946 to 1952; half of them date from 1952 or earlier. California has the most (2). 80% are registered to companies, flight schools, clubs and other organisations; the rest to individuals, who are never named here.

About the HARVARD 4 from the FAA's model table

Type
Fixed-wing, single engine · Piston singles
Power
Piston (reciprocating), 1 engine
Common engines
P&W R1340 Series (3), P & W R-1830 Series (1)
Seats
2
Cruise speed
about 141 mph
Maker on the register
North American
Registered
earliest certificate March 21, 1972; newest November 2, 2017

Where they are owner's state

California2Washington1Missouri1Illinois1

Who owns them registrant type

LLC2 (40%)Corporation2 (40%)Individual1 (20%)

Versions as the FAA records them · click one to list only those aircraft

VersionRegisteredBuiltShare
HARVARD 451946 to 1952100.0%

When they were built by decade

012341194041950

Registrations by year certificates issued since 2010, including changes of owner · 2026 is the year so far

00122120112201512017

Registration status

Valid5 (100%)

Airworthiness certificate class

Experimental4 (80%)None on file1 (20%)

Biggest operators companies, schools and clubs

Onaero INC1Fast Toys For Boys LTD1Dms Aviation Services LLC1American Aircraft Sales LLC1

Fleet pages: American Aircraft Sales LLC

Accident history NTSB

Each aircraft's own page already shows its NTSB accident and incident record. The model-wide record (accidents per year, fatal and non-fatal, against the number registered) is being added; it will appear here.

Questions people ask answers refresh every morning

How many North American HARVARD 4 aircraft are registered in the U.S.?

5 as of October 2, 2026, counting 1 version the FAA records separately.

Which state has the most North American HARVARD 4s?

California, with 2.

Who owns the North American HARVARD 4?

80% are registered to companies, flight schools, clubs and other organisations; the rest to individuals and co-owners, who are never named on this site.

Aircraft newest certificates first · 5

Tail no.Maker and modelOwner and baseCertificateRegisteredStatus
N1811B North American
HARVARD 4
Onaero INC
Santa Monica, California
Experimental 2017-11-02 Valid
N4289C North American
HARVARD 4
Dms Aviation Services LLC
Wildwood, Missouri
Experimental 2015-08-14 Valid
N7553U North American
HARVARD 4
Fast Toys For Boys LTD
Wenatchee, Washington
Experimental 2015-08-13 Valid
N28500 North American
HARVARD 4
American Aircraft Sales LLC
Livermore, California
None on file 2011-04-19 Valid
N7554U North American
HARVARD 4
Individual owner
Illinois
Experimental 1972-03-21 Valid