Scramjet test coverage now on fox

[Timebuilder]

Probably not.

An 11 second burn using two pounds of fuel is a rate of 654.55 (rounded off) pounds per hour.

Must have been some rate of acceleration to reach Mach 7 in 11 seconds from the 3,500 mph reached by the rocket motor.

 

[crowbar]

What is the speed of sound at the altitude that it went mach 7?

 

[bigD]

The Fox web site said the altitude was about 100,000 feet, so looking at my little chart here, it's 675.8 mph.

 

[A Squared]

Must have been some rate of acceleration to reach Mach 7 in 11 seconds from the 3,500 mph reached by the rocket motor.

That's about 4.6 g As a point of reference the space shuttle's engines are throttled to give a max acceleration of 3 g and an ejection seat gives you 12g-18g.

 

[bigD]

12-18g's?

Holy crap!

 

[crowbar]

A plane carries it to FL 350, than a rocket carries it up to FL 1000 and accelerates it to mach 5, and than a burn of something accelerates it another 2 mach.

What are they going to do know?

Looks like they need to have 3 types of engines on the missle to make it work, or launch them from fighters.

I want to see that mach 7 airliner.