There are 4 Tri-R Technologies TR-1 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 2002 and 2009.
N325K
2009 Wright Jesse M KIS
Fairfield, OH
N660C
2003 Baker Owen C BAKER KIS TR-1
Scotts Valley, CA
N343RL
2002 Gilbert Jackie Wayne Sr KIS TR-1
Monroe, LA
N864E
2002 Rodger Nigel P TR-1
Rio Vista, CA