There are 6 Bell Helicopter HH-1N 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.
N441PA
Bell Helicopter HH-1N
Ramona, CA
N8525H
Bell Helicopter HH-1N
Melbourne, FL
N8528D
Bell Helicopter HH-1N
Melbourne, FL
N8529Q
Bell Helicopter HH-1N
Melbourne, FL
N88SD
Bell Helicopter HH-1N
Chicago, IL
N911HN
Bell Helicopter HH-1N
Santa Barbara, CA