Space United Launch Alliance’s Vulcan Centaur rocket set for second launch Nebula NerdOctober 11, 2024045 views United Launch Alliance has prepared its second Vulcan Centaur rocket for launch at the Space Launch Complex-41 in Florida’s Cape Canaveral Space Force Station. The rocket is scheduled to launch on Friday (Oct. 4) after undergoing a key fueling test called a wet dress rehearsal (WDR). During the WDR, the rocket will be loaded with a million pounds of cryogenic propellants and put through a complete countdown procedure. If the WDR and other checkouts go well, the Vulcan Centaur will launch from SLC-41 on Friday during a three-hour window that opens at 6:00 a.m. EDT (1000 GMT).