Jeff Findley writes:

And if they're really serious about that kind of escape system, they
will need to be able to accelerate with more than 1 g in case of a
catastrophic booster failure. 10 g would require 150000 lbf thrust, or
the equivalent of 400 Draco engines. And the fuel to feed them.

You're just being silly. Obviously the engineers at SpaceX have thought
of this.

I surely hope so, but *what* did they think? ;-)

The point is that as clean and nice and easy all this looks in a video,
as soon as you look at the numbers all of this looks very dubious. And a
liquid fueled pusher escape system needs some engines with *massive*
thrust. If they use 400 Draco engines (obviously not really an option)
or just 4 new engines with each 100 times the thrust of a Draco engine,
the required thrust stays the same.

Squeezing something with 150000 lbf thrust into the bottom of a Dragon
capsule along with the fuel tanks for it just seems impossible to me.


Jochem

--
"A designer knows he has arrived at perfection not when there is no
longer anything to add, but when there is no longer anything to take away."
- Antoine de Saint-Exupery