Experimental & amateur-built aircraft
42,741 airframes · owner classified from FAA registration data (best-effort)
N21B
Lancair International · LANCAIR 320
N21BJ
BROWN · B.J SPORTSTER
N21BV
VUKOS JOHN P · VELOCITY ELITE RG
N21BW
BLESSING/HODO · PITTS S1-C
N21BX
SIAI-MARCHETTI · SM 1019
N21BZ
RANS INC · RANS S-20 RAVEN
2019
N21CE
CONTERNO JOHN M · CHRISTEN EAGLE II
1982
N21CJ
RANS INC · RANS S21 OUTBOUND
2025
N21CK
KENDALL CLIFFORD L · RV 3A
1990
N21CQ
CCX-2000-0131 LLC · CCX-2000
2021
N21CY
Yakovlev · YAK 52
N21DJ
KOVACH KIM A · PITTS S1S
1992
N21DK
KRUSIENSKI DANIEL P · CASSUTT
N21DN
NADELL DAVID ALLEN · TRICK TRIKE STORM
2011
N21DV
VIHLEN · PITTS SPECIAL S-1S
1977
N21EG
GORANSON ERIC A · SUPER BABY LAKES
N21ER
Van's Aircraft · VANS RV14A
2022
N21EV
MIKOYAN GUREVICH · MIG 21 UM
1974
N21GJ
JASPER GARY H · VANS RV-6
1995
N21GL
WACO · 2T-1A-2
2013
N21GR
ROBINSON DENNIS R · ROBINSON/PITTS S1S
1984
N21HH
Schempp-Hirth · MINI NIMBUS HS7
1978
N21HV
Velocity Aircraft · VELOCITY
2006
N21HW
PZL-MIELEC · TS-11 Iskra
N21JB
WELLER JAY BEE · STS PLYMATE SA-11-A
1999
N21JH
HAMM · PITTS SPECIAL
1976
N21JJ
LACH PETER J · SKYBOLT
N21JS
SIPPRELLE J H · STODDARD HAMILTON 2R
1994
N21JV
WAY · PITTS S-1
1977
N21K
KYLE HOWARD C · LONG EZ
N21KC
CAMPBELL · KR-1
1976
N21KE
Aero Vodochody · L-29 DELFIN
1965
N21KL
Van's Aircraft · VANS ACFT RV-14A
2024
N21L
Miniplane · BNF
1967
N21LB
BROSCHE · VARI-EZE
1977
N21LR
RUBY LOUIS J · LONG-EZ
N21LY
Lockwood Aircraft · DRIFTER
2023
N21MH
HEPPERLEN HARRY M III · RV-4
1995
N21MJ
DEHAVILLAND · DH112 VENOM
N21MM
MELANSON MARVIN · CASSUTT III M
1995
N21MV
VOLLMAN · SKYBOLT
1981
N21NS
NEMYO THOMAS · SA 300
1988
N21PC
MOMBOURQUETTE PAUL · SONERAI II B
N21PE
Van's Aircraft · RV4
2010
N21PF
MIKOYAN GUREVICH · MIG 21 PF
1965
N21PG
MARCZAK LANCE · SKY CRUISER
2013
N21PP
UNDERLAND G / GROTHE L · V-6
N21PR
RENEBERG-PECK · QUICKIE
N21PS
Van's Aircraft · RV-6A
2002
N21QQ
SHILLING E E · Q-2
1983
N21QT
HARPER MERLE F · SEA HAWKER
N21RB
BRAMMER ROBERT C · OSPREY 1
N21RD
ROBERT DARLING · KITFOX III
1991
N21RK
KING · PITTS S-1-S
1974
N21RV
NICHOLSON KNOX W · RV-4
1988
N21S
SCHWEITZER JEROME · RV6
1995
N21SA
MALECHA A C · VANS RV-7A
2010
N21SE
Schempp-Hirth · VENTUS-2C
1997
N21SK
MCLAGAN WILLIAM · AVENTURA UL
2006
N21SN
EDWARDS GARY M · 235/320
1999