William Mook wrote:


To know the kind of engine you need, you need to know the vehicle it will be used for.

To know the kind of vehicle you need, you need to know where it is going and what the vehicle is used for.

To know where you are going and what you are doing, you have to have a long-term plan.

Is anyone doing this?

NASA is not - not officially.

China is - officially.

* * *

Chinese Engines

YF-77 (165,000 lbf)
http://aviationweek.com/awin/chinese...xceed-saturn-v


So a smaller engine than RS-25, BE-4, AR-1, or Raptor. About the size
of the Merlin engines that SpaceX builds for use on Falcon.


Chinese Vehicles

Long-March 11 (140,000 lb LEO)
http://www.americaspace.com/2012/07/...g-new-rockets/


Uh, what does that citation have to do with Long March 11? It doesn't
even mention it and it's largely about paper rockets. Long March 11,
meanwhile, is about the size of Falcon Heavy.

snip speculative MookSpew


--
"The reasonable man adapts himself to the world; the unreasonable
man persists in trying to adapt the world to himself. Therefore,
all progress depends on the unreasonable man."
--George Bernard Shaw