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Old February 1st 20, 03:59 PM posted to sci.space.policy
Alain Fournier[_3_]
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Default Inside SpinLaunch, the Space Industry?s Best Kept Secret

On Feb/1/2020 at 08:11, Jeff Findley wrote :
In article , says...
I don't think it has a launch rate high enough to be interesting for
launching warheads. They advertise a possible high launch rate,
something like a few launches per day, that is high for orbital rockets
but way too low for guns.


True. It's a solution looking for a problem to solve. I certainly
wouldn't invest a dime on this.


Yeah, a dime is really an upper limit for this :-)

Now, for the moon, this thing would be perfect. No air on the moon
means no drag, no aerodynamic heating, and most especially no sonic boom
when exiting the launcher. And as a bonus, the 1/6 gravity also makes
for a low escape velocity and theretofore the required exit velocity is
much lower.


Yes if you have a base on the moon, some method of throwing things off
the moon makes sense. I'm not sure if spinning is the way to do it, a
linear track might be better, or spinning it up to speed might be
better, I don't know. But using electricity to save fuel and oxidizer
like this is the way to go.


Alain Fournier