NASA Supports SpaceX Plan To Fuel Rockets With Astronauts On Board (engadget.com)

For years, NASA has been debating whether to allow SpaceX to fuel its spacecraft with super-cold propellant after astronauts have boarded. While the company typically fuels its rockets shortly before launch in order to prevent the coolant from warming up too much, the practice has been deemed "a potential safety risk" by NASA safety advisers due to the high risk of an explosion. Now, according to Engadget, NASA has "decided that it will move forward with the SpaceX plan to fuel rockets after astronauts have already boarded." From the report: "To make this decision, our teams conducted an extensive review of the SpaceX ground operations, launch vehicle design, escape systems and operational history," Kathy Lueders, manager of NASA's Commercial Crew Program, said in a statement. "Safety for our personnel was the driver for this analysis, and the team's assessment was that this plan presents the least risk." SpaceX will have to prove its system is safe, however. The company will have to demonstrate the fueling procedure five times prior to its first crewed flight and afterwards, NASA will assess any remaining risk before certifying SpaceX's system. In September 2016, a Falcon 9 rocket exploded on the launchpad while it was being loaded with propellant. No injuries were reported, but it didn't look good to NASA which was already reviewing the fueling procedure.

Comments

Re: Good

[rkordmaa]

LES would have gotten away from AMOS-6 type scenario, that's pretty well determined. Sitting on the ground is when it's easiest for LES to get away from the exploding rocket, if LES can't get away from a fueling explosion one would have to ask, what's the point of LES to begin with? Because it sure as hell wouldn't get away from the rocket under acceleration.