skos:altLabel | - C-121 Constellation
- Lockheed C-121A Constellation
- R7V Constellation
- C-121
- C-121 Constellation airplane
- C-121 Super Constellation
- C-121/R7O/R7V Constellation
- C-121/R7V Constellation
- C-121A
- C-121C
- C-121C Constellation
- C-121G
- C-121J
- C-121J (Super Constellation)
- EC-121K<br />NC-121K
- JC-121C
- L-1049B
- L-1049F
- Lockeed C-121 Constellation
- Lockheed C-121/R7V Constellation
- Lockheed C-121J Super Constellation
- Lockheed NC-121K Constellation
- Lockheed R7V Super Constellation
- Lockheed R7V-1
- Lockheed R7V-1 Constellation
- Lockheed R7V-1 Super Constellation
- Lockheed RC-121 Constellation
- Lockheed VC-121A Constellation
- Lockheed VC-121A-LO Constellation
- Lockheed VC-121J Constellation
- NC-121C
- NC-121D
- NC-121J
- NC-121J,K
- NC-121S
- R7O-1
- R7V-1
- R7V-1/C-121J
- R7V-1P
- R7V/C-121 Constellation
- RC-121C
- RC-121D
- TC-121C
- TC-121G
- VC-121A
- VC-121B
- VC-121C
- VC-121E
- VC-121G
- VC-121J
- unarmed airplane
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