Part 1
Part 2
Links and References
ULA's Cis-Lunar 1000 Concept
Transportation Architecture for Cislunar Space
Saturday, September 10, 2016
The ULA's Future ACES Upper Stage Technology
Subscribe to:
Post Comments (Atom)
Blog Archive
CINEMA FANTASTIC
Popular Posts
-
Links and References The Contribution of Neanderthal Introgression to Modern Human Traits
-
I n 2025, total U.S. utility-scale electricity net generation reached approximately 4,429 billion kWh (4.43 trillion kWh) , according to... -
X-Ray of a notional regolith shielded 16 meter in diameter biosphere (Credit: NASA) by Marcel F. Williams A t least 0.1 g is required... -
by Marcel F. Williams Congress has now made it clear that they want the immediate development of a heavy lift vehicle and a crew explorato...
1 comment:
I looked at this, and their "revolutionary" APU appears to be a piston engine. Liquid cooling, inverted oil system... this was old hat before WWII.
Helium-free pressurizing apparently means heating the cryogens to maintain pressure as liquid is taken off.
There were boosters which used the turbopump exhaust for attitude (particularly roll) control but I'm not enough of a fanatic to recall which ones. If the APU is running, there's your stream of exhaust for reaction control.
All of this could have been done 20, 30, 40 years ago. What went wrong?
Post a Comment