There are 3 Rand Kar X-AIR 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 2001 and 2007.
N865HW
2007 Rand Kar X-AIR
New Lisbon, WI
N7046U
2001 Rand Kar X-AIR
Morganton, NC
N5158D
Rand Kar X-AIR
San Juan, PR