There are 16 Ayres S2R-600 aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 1978 and 1984.
N131CE
1984 Ayres Corporation S2R-600
Pantego, NC
N40103
1981 Ayres Corporation S2R-600
Benson, MN
N4021S
1980 Ayres Corporation S2R-600
Wilmington, DE
N4011X
1979 Ayres Corporation S2R-600
Roseau, MN
N4013S
1979 Ayres Corporation S2R-600
Perry, GA
N4013Y
1979 Ayres Corporation S2R-600
Eads, CO
N70AF
1979 Ayres Corporation S2R-600
Ord, NE
N1206S
1978 Ayres Corporation S2R-600
Lewiston, ID
N4001T
1978 Ayres Corporation S2R-600
Stephen, MN
N4001X
1978 Ayres Corporation S2R-600
Farmington, MO
N4004K
1978 Ayres Corporation S2R-600
Lakeview, MI
N3089K
Ayres Corporation S2R-600
Saint Anthony, ID
N4010H
Ayres Corporation S2R-600
Hill City, KS
N5674X
Ayres Corporation S2R-600
Blythe, CA
N8858Q
Ayres Corporation S2R-600
Port Saint Joe, FL
N8906Q
Ayres Corporation S2R-600
Bend, OR