Experimental & amateur-built aircraft
42,741 airframes · owner classified from FAA registration data (best-effort)
N4AZ
The Boeing Company · 220
N4BH
Van's Aircraft · RV-12
2021
N4BS
SIDLINGER · PITTS S-1
1976
N4BU
Van's Aircraft · RV10
2021
N4CJ
Cessna Aircraft Company · 525C
2008
N4CW
WHITTLE CARL · PITTS SPECIAL S1S
1988
N4CX
BAKER CARL C · SONERAI 1
1994
N4D
Pitts Special · S-1C
N4DC
ORRE ROBERT L JR · KITFOX IV
1995
N4DE
EIDE · TURNER T-40A
N4DK
YOUNG · JURCA MJ2 TEMPETE
1975
N4EW
Van's Aircraft · RV-7A
2015
N4F
BORK ROGER LEE · 5151 MUSTANG
1989
N4FJ
JOHNSON-HERBERT · CHRISTEN EAGLE II
1988
N4FQ
GOBIN HENRY E · GN-1 AIRCMPR-PTNPOL
1998
N4FW
WALLAMN SPORT PLANE · WSP-1
1975
N4GF
TURNER WILLIAM H · BOWERS FLY BABY
1976
N4GG
GUILLIAT GARY · PITTS S-1S
1980
N4GM
MCQUISTON · WITTMAN TAILWIND W-8
1975
N4GW
WHEELER GEORGE · FIREBOLT
2007
N4GZ
GLADE BERNARD W JR · RANS S-7S
2009
N4HN
AB Sportine Aviacija · GENESIS 2
1999
N4HR
ROSS · PITTS SPECIAL
1973
N4JE
EICKMEIER JOHN L · PITTS SPECIAL S1C
1989
N4JM
MARTIN JACK E · LONG-EZ
1988
N4JP
ALPHA ROMEO HOLDINGS INC · F1 ROCKET
2004
N4JZ
JONES GAY E · LONG-EZ
N4KJ
Van's Aircraft · RV-10
2018
N4KM
MCCARTY K A · OSPREY II
1988
N4KN
PIPISTREL D O O · Taurus 503
2007
N4L
BAUMGARTNER · PITTS S-1
1972
N4LK
Lancair International · LANCAIR IVP
2006
N4MF
NANCHANG CHINA · CJ-6
1973
N4MP
PLYLER · PITTS SPECIAL S-1
1973
N4N
WHEAT REPLICA · CURTIS WRIGHT JR
1970
N4NH
HEIMBERGER NORM · QUICKSILVER II
2010
N4PB
TEMCO · T-35
1950
N4PE
Velocity Aircraft · VELOCITY STD FG-ELIT
N4PH
HARCOURT PHILLIP B · LANCAIR 320
1991
N4PM
Van's Aircraft · VANS RV-6A
2000
N4PU
COOPER WALDEN A · PITTS S1S
1982
N4PX
GALLAGER JOHN C · GLASAIR I TD
N4PY
GRIFFIN JAMES A · GLASAIR III
1993
N4QV
Amateur-Built (Experimental) · QUESTAIR VENTURE
2009
N4RJ
MOHRMAN · DYKE DELTA JD-2
1974
N4RL
LATHAM · PIEL DIAMANT CP-604
N4RT
Van's Aircraft · VANS RV7A
2016
N4SB
SHIMER JON R · SKYBOLT
N4SH
STAUDACHER JON · S-600
1994
N4SQ
HOUK-BASTIAN · PITTS S-1S
1984
N4SX
Lancair International · LANCAIR IV
1999
N4SZ
Van's Aircraft · RV-6
2007
N4TE
Rolladen-schneider · LS-6
1985
N4TF
Vought · F4U-4
1945
N4TP
RANS INC · RANS S-19
2011
N4TT
BALLANTYNE/ROSS · VANS RV-6
1989
N4TW
TIMOTHY D WIENS · CCX-2000
2020
N4TZ
CUMBERLAND/CUMBERLAND · SKYBOLT
1992
N4UC
ULRICH RUDOLF CHRISTEN · CHERRY BX-2
2016
N4UK
Glasflügel · MOSQUITO
1978