| Designation | Official, Popular Name(s) | Manufacturer | 1st Flight or Appearance | Role(s)/Notes |
Z-1 Pawnee Hiller "flying platform"
Z-1 Goodyear 1962 redes. ZPG - airship AEW
Z-1 TBD ? USN ASW airship
Z-2 Vertol 1960? tilt-wing research
Z-2 Airship 1989 USN EW, multirole airship
Z-3 Vertiplane Ryan 1960? VTOL research convertiplane
Z-4 Convertiplane Doak 1960? experimental VTOL ducted propellor
convertiplane
Z-5 Fairchild 1960? VTOL research
Z-6 Chrysler 1960? VTOL ducted-fan
Z-7 Cur.-Wr. 1960? VTOL research
Z-8 Airgeep, Seageep Piasecki 1960? VTOL aircraft - low-level observation &
liaison
Z-9 Avro 1960? flying saucer research
Z-10 Hummingbird Lockheed 1962 redes. V-4
Z-11 Ryan 1960? VTOL research
Z-12 Kestrel Haw-Sid 1960? VTOL research
ZMC 1929 experimental Metal-Clad airship
ZO-4 1974 designation reserved - LTA observation?
ZPN Goodyear 1950 initial designation ZPG
ZPG Goodyear 1954 non-rigid AEW patrol airship - redes. ZPN
ZR N.A.F. oceanic patrol rigid airship
ZRS Goodyear 1933 USN airship