Final Flight: United Launch Alliance’s Delta IV Heavy

Final Flight: United Launch Alliance’s Delta IV Heavy

Storied Booster Concludes Its Service with Classified Mission
NROL-70, the final Delta IV mission, launches from CCSFS on Tuesday, April 9, 2024. Photo: Mark Stone/FMN
NROL-70, the final Delta IV mission, launches from CCSFS on Tuesday, April 9, 2024. Photo: Mark Stone/FMN

On a bittersweet day in in the annals of spaceflight, the United Launch Alliance (ULA) said goodbye to one of its most powerful and storied rockets. With an ontime launch at 12:53 PM EDT on April 9, the Delta IV Heavy rocket soared into the skies for its final mission, carrying a classified payload for the National Reconnaissance Office (NRO), designated NROL-70.

Launch Date Set for Delta IV Heavy, Another Slight Shift Right For Starliner

Launch Date Set for Delta IV Heavy, Another Slight Shift Right For Starliner

Delta IV Heavy on March 28, 2024
Photo: Charles Boyer / FMN
Delta IV Heavy on March 28, 2024
Photo: Charles Boyer / FMN

Tuesday was an active day for launch scheduling: United Launch Alliance has announced that they will make their next attempt to launch Delta IV Heavy and NROL-70 on Tuesday April 9th, and later, NASA announced that the Crewed Flight Test of Boeing’s Starliner is now Monday, May 6th.

“Scrubby” Rears His Ugly Head Again

“Scrubby” Rears His Ugly Head Again

3/28/24 9:18 PM UPDATE: ULA WILL NOT LAUNCH DELTA IV HEAVY ON FRIDAY – NEW DATE TBD

Scrubby Graphic
ScrubbyLogo (c) FMN

UPDATE: ULA earlier reported that they had repaired a system that caused the company to scrub today’s launch. Upon further testing, ULA determined further repairs are needed. No launch date has yet been announced, but Monday is the next opportunity.

What started out as a dicey proposition about whether the final Delta IV Heavy launch would make it off the pad on Thursday ended with a disappointing scrub. But not for the reason most thought it would be.

Boeing Starliner Launch Now NET May 1st

Boeing Starliner Launch Now NET May 1st

Boeing’s Crewed Flight Test of Starliner has pushed a little further to the right again and is now scheduled to launch no earlier than May 1st. That shift is not due to any concerns with the vehicle or its readiness, but instead, ISS scheduling, specifically docking port availability, when astronauts Suni Williams and Butch Willmore arrive at the orbiting outpost.

Rendering of Boeing’s CST-100 Starliner docked at ISS

NASA’s Steve Stich Gives Quick Starliner Update

Rendering of Boeing’s CST-100 Starliner docked at ISS
Graphic: Boeing Corporation

During the NASA Administrator Briefing from the Kennedy Space Center mainly centered around Crew-8 readiness today, Steve Stich, the Manager of the agency’s Commercial Crew Program gave some insight about the status of the planned first crewed flight of Boeing’s CST-100 Starliner. That launch is currently planned for late April of this year.

Celestis: Enterprise Flight Remains On Course

ULA’s Vulcan lifting off in the early hours of January 8, 2024.
Photo: Charles Boyer, FMN

Celestis, the Texas company that provides space-based memorial services for the families of loved ones is reporting that its Enterprise Flight payload launched on ULA’s Vulcan rocket Monday morning is successful and traveling 85 million miles (297 mil km) from Earth into deep space.

ULA’s Vulcan lifting off in the early hours of January 8, 2024.
Photo: Charles Boyer, FMN

Celestis, the Texas company that provides space-based memorial services for the families of loved ones is reporting that its Enterprise Flight payload launched on ULA’s Vulcan rocket Monday morning is successful and traveling 85 million miles (297 mil km) from Earth into deep space.

ULA: Most Vulcan Systems Have Atlas or Delta Heritage

Graphic showing components of ULA Vulcan Centaur
Graphic: United Launch Alliance

In a press conference today leading up to the maiden launch of the ULA Vulcan in the early hours of Monday morning, ULA Vice President of Government and Commercial Programs Gary Wentz stated that the vast majority of the new rocket is either flight-proven or a variant of flight-proven hardware. He said that “the only hardware that hasn’t flown prior to this flight is the BE-4 engine. All the other or variants thereof have flown on Atlas or Delta flights, missions for other customers.”

Vulcan Rolled Out To Launch Pad, Set To Go Early Monday

ULA Vulcan on the pad
Vulcan on the launch pad at SLC-41 at Cape Canaveral Space Force Station on January 8, 2023
Photo by TJ Waller / Florida Media Now

United Launch Alliance moved its new Vulcan rocket to the launch pad at SLC-41 at Cape Canaveral Space Force station this afternoon. Vulcan will make its maiden launch at 2:18 am EST Monday January 8. The latest forecasts call for an 85% chance of acceptable launch conditions weather-wise, leaving only a 15% Probability of Violation of weather criteria. That forecast will likely be updated by the 45th Weather Wing of the US Space Force as soon as tomorrow and is subject to change.