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[*Jim Maser = pres RKTDYNE]
PWR - SSME'S & J2-X
-14 engines available at end of STS fly-out
[[arrow over STS in right margin]] NASA already owns (cost is 0)
[maintained critical skills .... which is necessary]
expandible version ~ 30% less
- air start SSME?
- US needs new 2nd stage engine to get beyond Leo
(ie. keep funding/Dev J2-X, regardless of architecture)

~ 2011 RL68A for DSCTA IV's (M+H)

* liquids => easier & monitor, assess health, shut down
(for human-rating, abort)
human-rating RS-G8 + RL10 => sensors
[[right margin]]=> GND-testing drives
[[left margin]] pref: [DECTA IV for crew
[[right margin]] sched/cost = ~ 4 yrs/150-250 M
[[left margin]] [shuttle=derived for cargo
Space PGM
has to serve nat'l need to survive multiple yrs/admins
ISS  that brings countries of world together

problem = things happen too slowly ... lose interest
of public & young employees

Why human space flight? [has to touch + address every aspect of
human survival [therefore] learn things]

note = SpaceX [[right arrow]] set up to serve more risk-averse customer
not customers [[?]] failures not not an option.