Category:Martin Marietta X-23

<nowiki>Martin Marietta X-23 PRIME; X-23 (航空機); Martin Marietta X-23; Martin Marietta SV-5D; Martin Marietta X-23; Martin X-23 PRIME; Martin Marietta X-23; Martin-Marietta X-23 PRIME; مارتن إكس-23 برايم; Martin X-23 PRIME; Martin-Marietta X-23; Martin X-23 PRIME; Martin X-23 PRIME; مارتین ایکس-۲۳ پرایم; Martin X-23 PRIME; X-23; modello sperimentale di spazioplano; Raumflugzeug; American experimental aircraft; מטוס ניסוי אמריקאי; avion spatial; X 23 PRIME; X-23 PRIME; Martin Marietta X-23; Martin Marietta X 23; Martin Marietta X 23 PRIME; X-23; X-23; Martin X-23A PRIME; Martin Marietta X-23; X-23; X-23</nowiki>