NASA Awards Space Cargo Grant
pha7boy writes "NASA has made a recent award of 171 million dollars to Orbital Sciences Corp. of Virginia in order to aid the company in developing a feasible space cargo delivery service. 'The US space agency intends to hold an open competition in the years ahead for actual space station cargo-delivery contracts, but Orbital of Dulles, VA, is one of two companies receiving financial help from NASA to develop their proposed systems. The other is Space Exploration Technologies of El Segundo, CA.'"
It's not duplicate of the ATV: AFAIK, it's intended for very urgent deliveries of small amounts critical supplies to ISS, where the ATV is designed for long-term scheduled deliveries of large amounts of day-to-day supplies.
The two problems are similar, but complementary.
Pirate Party UK
OSC has proven that it can put small payloads into LEO using solid fuel boosters. For cargo delivery to the ISS, you need a system that can match orbits rather well. That means advanced avionics and more flexibility in the upper stage. For that kind of capability, SpaceX seems to be rather better positioned as their liquid-fuel engines have restart capability.
Yes, the last Falcon I launch did not deliver payload to orbit. But the failure mode was fairly innocuous: slosh in the upper-stage fuel tank together with some positive feedback. Throughout the oscillating burn the risky parts of the system (pumps, engines, guidance) performed well enough to indicate that had the engine not run dry a bit too soon because of the propellant being centrifuged to the tank sides, the burn would have been complete and on target.
The slosh issue looks like an easy fix: baffles in the tank and some changes to the thrust-vectoring software.
This is the second part of the COTS contract. The first already went to SpaceX, while originally Rocketplane/Kistler won the second part, but failed to meet agreed upon fundraising milestones and lost the contract. Now they are reawarding that second part to Orbital Sciences, while maintaining SpaceX as the first COTS partner.