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.

Delta IV Heavy / NROL-70

Delta IV was scrubbed at T-min 3:58 by a faulty gaseous nitrogen pump on its first attempt March 28, and at the time, ULA engineers and CEO Tory Bruno were optimistic that a second attempt could happen the next day. Unfortunately, the pump failed again, and ULA stated that they would announce a new launch date only when they were certain that they and NASA (who provides the N2 service to the pad) were past the problem.

Today ULA released their new target date:

DELTA IV HEAVY TO LAUNCH NROL-70

“A United Launch Alliance (ULA) Delta IV Heavy rocket is launching the NROL-70 mission for the National Reconnaissance Office (NRO) from Space Launch Complex-37 at Cape Canaveral Space Force Station, Florida. This is the 16th and final launch of a Delta IV Heavy rocket. 

Launch Date and Time: April 9 at 12:53 p.m. EDT, pending range approval

GO Delta IV Heavy! GO NROL-70!

United Launch Alliance

The launch will be from SLC-37 at Cape Canaveral Space Force Station.

Delta IV Heavy's new launch date is April 9th. Graphic by SpaceIntel101
Delta IV Heavy’s new launch date is April 9th. Graphic by SpaceIntel101

Starliner Crewed Flight Test (CFT)

The Boeing CST-100 Starliner spacecraft is lifted at the Vertical Integration Facility at Space Launch Complex-41 at Florida’s Cape Canaveral Space Force Station on May 4, 2022.
Photo: NASA/Frank Michaux
The Boeing CST-100 Starliner spacecraft is lifted at the Vertical Integration Facility at Space Launch Complex-41 at Florida’s Cape Canaveral Space Force Station on May 4, 2022.
Photo: NASA/Frank Michaux

Later on in the day, rumors of a shift in the Starliner launch date from May 1st came to pass when NASA made this announcement:

NASA, Boeing Update Launch Date for Starliner’s First Astronaut Flight

“Following a review of the International Space Station operations, NASA’s Boeing Crew Flight Test now is targeting no earlier than Monday, May 6, for Starliner’s first launch with astronauts to the orbital complex. The date adjustment optimizes space station schedule of activities planned toward the end of April, including a cargo spacecraft undocking and a crew spacecraft port relocation required for Starliner docking. NASA and Boeing also are performing prelaunch closeout work and completing final certification for flight.”

NASA, Boeing Update Launch Date for Starliner’s First Astronaut Flight

It should be noted that Starliner’s launch date was not moved due to any technical issue, but instead because of ISS logistics. NASA Astronauts Suni Williams and Butch Wilmore will be aboard Starliner when it heads to the International Space Station for a planned one week stay on the orbiting outpost.

This story was written for TalkofTitysville.com by FMN’s Charles Boyer.

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