There are 7 Steen Aero Lab SKYBOLT 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 1988 and 2004.
N540DR
2004 Reed David F SKYBOLT
San Antonio, TX
N325SB
2002 Paul Timothy SKYBOLT
Garrettsville, OH
N16HW
2001 Hodges John P Jr SKYBOLT
Bartlett, TN
N248SC
1999 Cunningham Steve SKYBOLT
Tekoa, WA
N540SB
1999 Clayton Mark H SKYBOLT
Meridian, MS
N62DP
1988 Glanville M/Glanville E STEEN SKYBOLT
Tarzana, CA
N24SB
Flynn Steven W SKYBOLT
Bushnell, FL