NK-33/AJ-26 powered Antares, of course. (Not to mention the N-1.)
Which used subcooled LOX, because the NK-33 requires it.
Can you say anything about the arrangements (if any) for keeping LOX at
the proper temp in that version of Antares? I haven't been able to find
much on a casual search, beyond the assertion that Antares LOX was at
-196C, SpaceX F9's at -207C, and mention of a LOX subcooler at the
Wallops pad that they've restored anyway (despite the RD-181 Antares not
using subcooled LOX) because it was cheaper than vac-jacketing the pipes
from the LOX farm to prevent warmish LOX on hot days.
Henry
On 11/7/2016 12:05 PM, William Claybaugh wrote:
Others have used supercool Lox and have not had to load in an all fired
hurry....
Bill
On Monday, November 7, 2016, David Spain <david.l.spain@xxxxxxxxx
<mailto:david.l.spain@xxxxxxxxx>> wrote:
The crux of my question regards the use of supercooled LOX putting a
time constraint on the launch window.
I was hoping to learn how the interaction of the helium
pressurization system and the supercold LOX might put a time
constraint on how long the F9 can stay fueled on the pad? Is that
the main reason SpaceX has always planned on crewing the vehicle first?
