There are 8 Aerotek PITTS S2S 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 1981.
N4270C
1981 Aerotek PITTS S2S
Queen Creek, AZ
N68TS
1981 Aerotek PITTS S2S
Victoria, TX
N364SL
1980 Aerotek PITTS S2S
Longview, TX
N80PS
1980 Aerotek PITTS S2S
Glenburn, ME
N31461
1979 Aerotek PITTS S2S
Watsonville, CA
N540TX
1979 Aerotek PITTS S2S
Lewes, DE
N260TC
1978 Aerotek PITTS S2S
Queen Creek, AZ
N8235
Aerotek PITTS S2S
Middletown, DE