"Maxprop" wrote in message
ink.net...

"Bob Crantz" wrote in message
nk.net...

Rocket engines are not their only business. What operational rocket does
the US have compared tot he Russian Proton?

Dunno. Haven't researched it that thoroughly.

Why is the US using Russian engines?

Cheap?


The shuttle does move more gear and people. The Shuttle's big flaw was
building the engines into the airframe.

I wasn't aware of that. Why is that so?


Replacing them is a lot of work, adds to shuttle weight, fuel pipe from tank
to shuttle is a weak point, shuttle must lift tank of fuel on it's airframe,
fuel leaks in spacecraft.

Soviet version of shuttle did not have engines in craft.



Advanced tactical laser to fly soon.

What's the power source these days? Nuke?

Chemical and electric. Good for 100 shots before reloading, can fit in V-22.



Max