Experimental & amateur-built aircraft
42,741 airframes · owner classified from FAA registration data (best-effort)
N51G
POBER SPORT · P-5
1959
N51GV
VILENDRER GERALD J · MONERAI-P
1980
N51HC
PITTS · S-1T
1985
N51HD
DITTMAR HEINI · CONDOR IV
1951
N51HJ
JONES STEPHEN C · MIDGET MUSTANG I
1992
N51HL
CRANE CW · TEENIE EXTRA
2014
N51HS
Van's Aircraft · RV-9A
2006
N51JA
PZL-MIELEC · TS-11 Iskra
N51JE
IVEY JACK · GLASAIR 1 RG
1992
N51JF
FERRARO · STARDUSTER TOO SA300
N51JM
American Legend Aircraft · AL18
2022
N51JR
AVIATION ADVENTURES UNLIMITED · MUSTANG P51D
1984
N51KL
Amateur-Built (Experimental) · LOEHLE 5151 RG
2004
N51KS
SODERGREN KIT · MIDGET MUSTANG
N51LF
FOLSOM LAWRENCE EARL · WOLF W II
1990
N51LJ
Titan Aircraft · TITAN T-51
2007
N51LT
SCHERMERHORN · WITTMAN W-8-ES1
1959
N51LV
Van's Aircraft · Vans RV-8
2008
N51M
SOMMERFIELD WALLY · P51D
N51MD
DANIELSON MARK W · SKYBOLT
1979
N51MG
Magni Gyro · MAGNI M26 VICTOR
2024
N51MH
HOWARD MICHAEL A · RV-6
1996
N51MJ
TOLLE ALAN E · VANS TOLLE RV-6A
1991
N51MY
DROLLINGER LYNN H · 0360
1990
N51NA
North American Aviation · XP-51
1941
N51NF
NORRIS WAYNE C · M2
N51NX
MORGAN G RUSSELL · ONEX
2021
N51P
CHARLIE GOLF AVIATION LLC · SW-51
2025
N51PA
MICHALS JEFFREY J · AER1
2017
N51PF
PRICE JACK K · BUSHBY MUSTANG II
1996
N51PM
Amateur-Built (Experimental) · KITFOX IV
2025
N51PW
PHILLIPS MARK A · RV-6A
2004
N51PZ
Amateur-Built (Experimental) · LEGEND
2002
N51RB
BAUMERT · CHARGER MA-5
1977
N51RD
SKYSTAR AIRCRAFT CORP · SERIES 7
2007
N51RV
ROCKWELL KENT NORMAN · RV-3
N51SC
LEZIN JEREMY S · AIR CAM
1999
N51SJ
MUSSO PAUL A · PITTS SPECIAL
N51SM
Van's Aircraft · VANS RV-9A
N51SR
Lockheed · T-33A 1-LO
1972
N51SX
MCKINNEY MICHAEL C · SWEARINGEN SX 300
2022
N51TL
Scottish Aviation · SERIES 100 MDL 101
1972
N51TP
MARTIN HEISLER · JAVRON PA18 REPLICA
2022
N51TU
NELSON THOMAS A · KR-2
2008
N51UU
Magni Gyro · MAGNI M-24+
2021
N51VS
OWEN I SMITH · BEARHAWK PATROL
2013
N51VW
RIA AIR LLC · P-51-D
2010
N51WC
STOCKTON-JEFFREY · VARI EZE
N51WD
DAWSON BILLY · HATZ-CLASSIC-HC-1
1996
N51WK
DUNCAN W G · LANCAIR 235
1991
N51WL
LYONS WAYLON A · EVANS VP II
1991
N51WY
Amateur-Built (Experimental) · THUNDER MUSTANG
N51XA
Van's Aircraft · GS6A
2013
N51XP
Van's Aircraft · RV-8
2010
N51XX
Amateur-Built (Experimental) · BD-5G
N51XZ
Amateur-Built (Experimental) · S 51 D
2004
N51Y
Titan Aircraft · TITAN T51 MUSTANG
2010
N51YX
KRAUSE RAYMOND A · WAIEX
2007
N51Z
NORTH AMERICAN/SPILLERS · P51A-1NA
1985
N51ZA
NIELSEN MARTIN M · ZENITH 701
2020