| | N14215 | Private | Unallocated | -0001 | Unallocated frame, notes 'Rider Keith R-3', if known please update accordingly |
| | N4453M | Private | Unallocated | -0001 | Unallocated frame, notes 'Mcardle Blaise L SELF BUILT', if known please update accordingly |
| | N811W | Private | Unallocated | -0001 | Unallocated frame, notes 'Economou Arthur HEATH ', if known please update accordingly |
| | N11377 | Private | Unallocated | -0001 | Unallocated frame, notes 'Peterson John W PETERSON', if known please update accordingly |
| | N15520 | Private | Unallocated | 1938 | Unallocated frame, notes 'A & M Aero Co ANDRUS-MORRIS FLEA', if known please update accordingly |
| | N909AN | Private | Unallocated | 1993 | Unallocated frame, notes 'Wood Marshall C ANTIONETTE', if known please update accordingly |
| | N8670E | Private | Unallocated | 1995 | Unallocated frame, notes 'Homebuilt CB-1 ', if known please update accordingly. Owner/Operator Marvin Carlton R |
| | N794E | Private | Unallocated | 2000 | Unallocated frame, notes 'Townsend Thunderbird AIT', if known please update accordingly |
| | N6573R | Private | Unallocated | 2007 | Unallocated frame, notes 'Hoffmann Ryan R ANTHEM', if known please update accordingly |
| | N826GP | Private | Unallocated | 2010 | Unallocated frame, notes 'Homebuilt OSPREY II ', if known please update accordingly. Owner/Operator Zapponi Frederick J |
| | N996N | Private | Unallocated | 2012 | Unallocated frame, notes 'Homebuilt MATHIEU-RUSSELL ', if known please update accordingly. Owner/Operator Alfred And Lois Kelch Aviation Museum |
| | N8078W | Private | Unallocated | 2017 | Unallocated frame, notes 'Homebuilt A', if known please update accordingly. Owner/Operator Haman Thomas W |
| | N6034 | Private | Unallocated | 2021 | Unallocated frame, notes 'Homebuilt SCORPION HELICOPTER ', if known please update accordingly. Owner/Operator Wieder Justin D |