Category:Spaceplanes of the United States
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Subcategories
This category has the following 16 subcategories, out of 16 total.
A
B
D
L
M
- Martin Marietta X-23 (8 F)
N
- NASA HL-20 (20 F)
- NASA HL-42 (5 F)
- Northrop HL-10 (29 F)
R
- Roton (rocket) (1 P, 6 F)