Experimental & amateur-built aircraft
42,741 airframes · owner classified from FAA registration data (best-effort)
N2519B
TIMMER OLAF/DANA · LONG-EZE
1984
N251AB
Magni Gyro · M16 XTREME
2023
N251AG
ANDERSON GREENWOOD · 51
1976
N251AW
RANS INC · RANS S-6ES COYOTE II
2003
N251B
Alexander Schleicher · ASW 20
1979
N251BK
Quad City Ultralight Aircraft Corp · CHALLENGER II
N251BR
RICH BERYL G · HARMON ROCKET II
2000
N251CR
Amateur-Built (Experimental) · STEWART 51-D
2015
N251CV
Cirrus Aircraft · SF50
2014
N251CW
Amateur-Built (Experimental) · RAI 6
N251CX
GIGNAC RAYMOND E · THATCHER CX4
2013
N251DR
Van's Aircraft · RV-7
2007
N251DY
Van's Aircraft · RV-10
2026
N251EX
Glasair Aviation · GLASAIR SPORTSMAN2+2
2025
N251GA
Amateur-Built (Experimental) · THUNDER MUSTANG
2007
N251HF
Amateur-Built (Experimental) · SMITH SUPER CUB
2025
N251JG
Amateur-Built (Experimental) · SW-51
2025
N251KE
ISAACSON ANDREW C · MURPHY REBEL
1995
N251LM
Titan Aircraft · TITAN T-51D
2015
N251MD
RANS INC · RANS S-6S
2014
N251ML
BRM Aero S R O · BRISTELL B23-916M
2025
N251RB
MASON CHARLES D · GLASAIR
1984
N251RG
Gray Richard D · F1 ROCKET
2008
N251RK
Sonex Aircraft · SONEX
2011
N251RT
RUNYAN ROGER L · WAG AERO SPORT TRAIN
2008
N251S
GOODWIN STEPHEN E · FISHER SUPERKOALA
1995
N251SW
Amateur-Built (Experimental) · SW-51 MUSTANG
2025
N251TM
Van's Aircraft · VANS ACFT INC RV-14
2023
N251UT
BETA AIR LLC · ALIA-250
2021
N251WH
HIGHTOWER WILLIAM A · GLASAIR III
1994
N251X
STANLEY K HOHULIN · ONEX
2015
N251Y
Amateur-Built (Experimental) · MUSTANG II
2021
N252
CARTER JAY M · KITFOX S-6
2005
N25209
Williams International · WXM
N2520X
Quicksilver Manufacturing · SPORT 2S
2003
N2520Z
Buckeye · DREAM MACHINE
1994
N25210
ERWIN · KINGFISHER
1977
N2521D
CAMERER CARL E · SKYRAIDER I
1999
N2521F
FRITTS DOFIN · 2000 GTX
2000
N2521H
Air Creation · CLIPPER
1998
N2521X
Szybowcowy Zaklad Doswiadczaln · SZD-36-A
1972
N2522
Van's Aircraft · RV-10
2020
N2522A
Piper Aircraft · PA-22
1953
N2522N
REICHWALD BRIAN T · BH MARATHON
2006
N2522Y
PEGASUS · QUANTUM 15
1999
N25235
Quicksilver · GT 500
2005
N2523T
FLYING K ENTERPRISES · SKY RAIDER
2008
N2524
Progressive Aerodyne · Searey
2005
N2525A
Amateur-Built (Experimental) · REV X
2022
N25265
Cessna Aircraft Company · 152
N2526J
Buckeye · DREAM MACHINE
1997
N2526K
Soaring Concepts · SKY TREK
2002
N2526W
Van's Aircraft · RV-6A
2000
N2527
CHAPMAN VIRGIL D · PIETENPOL AIRCAMPER
2014
N2527R
BUCKEYE AVIATION INC · BREEZE
2002
N2528
Glasair Aviation · GLASAIR SPORTSMAN
2016
N25299
Mil · Mi-17
1984
N252AB
Magni Gyro · M24 ORION PLUS
2024
N252CE
Van's Aircraft · SELLIS RV-4
2003
N252CM
FREDERICK MARK · FREDERICK ROCKET II
1996