United Launch Alliance (ULA) is changing its schedule for receiving the Russian-made RD-180 rocket engine from an annual shipment to twice-per-year, according to a company spokeswoman. ULA spokeswoman Jessica Rye said Wednesday there are deliveries of engines scheduled in August and October instead of just one for 2014. Rye said the engines will be shipped once they are completed instead of once per year. Rye did not provide further details on the reason for the delivery schedule change. ULA uses…
