There are 3 Bellanca Aircraft 51 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.
N250DJ
1980 Bellanca Aircraft Corp. 51
Pleasanton, CA
N250MG
1980 Bellanca Aircraft Corp. 51
Midland, TX
N77CT
1980 Bellanca Aircraft Corp. 51
Beaumont, TX