- North American X-15A-2 > of the United States Force™ > Display
- The Fastest (Rocket) Aircraft In The world | by North American | Upscaled Documentary - YouTube
- NASA Armstrong Fact Sheet: Hypersonic Research Program | NASA
- X-15: The fastest rocket plane ever - CNN Style
- X-15: The Rocket Plane That Broke All Speed Records | The National Interest
- NASA Armstrong Fact Sheet: Hypersonic Research Program | NASA
- North American Aircraft
- X-15: The fastest rocket plane ever - CNN Style
- 1959 North 15. 4,500 speed : r/aviation
- North X-15 - Wikipedia
- Fastest X-Plane - 7 North American - YouTube
- ft f 4,520 mph 8-g
- THE STORY OF THE OFFICIAL WORLD RECORD FOR THE HIGHEST SPEED EVER SET BY A POWERED - The Geek Club
- AeroScale :: Osprey Publishing Review
- North X-15 - Wikipedia
- North American X-15: The aircraft Video
- X-15 | Air Space Magazine| Smithsonian Magazine
- THE STORY OF THE OFFICIAL WORLD RECORD FOR THE HIGHEST SPEED EVER SET BY A POWERED - The Geek Club
- NASA Armstrong Fact Sheet: Hypersonic Research Program | NASA
- 5 Things You Never Knew About NASA's X-15 Rocket Plane
- Ultimate Flying Machine - YouTube
- DVIDS - Images - mock-up with test pilot Milt Thompson