4. Boeing X-51
Price: $7,700,000
Highest Speed: 3,400mph
Time To Go Around the Earth: 5.5 hours
This pilotless plane is under development and will be a superfast striker weapon which will be operational by 2020.
4. Boeing X-51
Price: $7,700,000
Highest Speed: 3,400mph
Time To Go Around the Earth: 5.5 hours
This pilotless plane is under development and will be a superfast striker weapon which will be operational by 2020.
