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Forum:	Commercial Space - Military Space
Topic:	Final Delta / Delta IV Heavy launch (NROL-70)

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Your Reply: HTML is ON UBB Code is ON Smilies Legend	[QUOTE]Originally posted by Robert Pearlman: [B]United Launch Alliance (ULA) release <blockquote><font size="+0">[b]NROL-70: Final Delta IV Heavy prepared for launch[/b]</font> The dependable Delta — one of the pillars in American rocketry for more than 60 years — is preparing for its final mission that will carry a national security payload into space to serve and protect the U.S. and our allies. United Launch Alliance (ULA) will use a Delta IV Heavy rocket to launch the NROL-70 mission in service to the National Reconnaissance Office (NRO) and support for the U.S. Space Force's Space Systems Command (SSC). <center><a href="http://www.collectspace.com/review/ula_delta_nrol-70_poster01-lg.jpg" target="AirLock"><img src="http://www.collectspace.com/review/ula_delta_nrol-70_poster01.jpg" width="400" height="601" border="0"></a></center> Liftoff is planned for Thursday, March 28 from Space Launch Complex (SLC)-37 at Cape Canaveral Space Force Station, Florida. This will be the 16th flight of the Delta IV Heavy launch vehicle and 389th and final flight of the Delta program. NROL-70 extends a partnership between the NRO and ULA that began with our very first launch in 2006 and now totals 34 consecutive successes. This will be ULA's 35th NRO launch. The triple-core Delta IV Heavy is the only operational rocket in the world today that possesses all necessary attributes to meet the stringent requirements to perform the NROL-70 mission. It will be the NRO's 12th launch aboard ULA's heavy-performance rocket, which is recognized for delivering high-priority missions for national security and NASA. The rocket first flew in December 2004. The payload aboard NROL-70 is designed, built and operated by the NRO in support of the agency's national security mission to provide intelligence data to U.S. senior policy makers, the Intelligence Community and Department of Defense. Preparations for the NROL-70 launch began with the May 2023 delivery of the rocket from the ULA factory in Decatur, Alabama, to Cape Canaveral via the R/S RocketShip, our ocean-going cargo vessel that transports rocket elements to the launch sites. The final Delta arrived exactly 22 years after the first Delta IV, called the static fire test unit, arrived at the Cape for early pathfinder activities. <center><a href="http://www.collectspace.com/review/ula_delta_nrol-70_poster02-lg.jpg" target="AirLock"><img src="http://www.collectspace.com/review/ula_delta_nrol-70_poster02.jpg" width="400" height="266" border="0"></a></center> Delta IV Heavy consists of a half-million pounds (227,000 kg) of hardware in the form of three common booster cores (CBCs) fitted with RS-68A main engines, a Delta Cryogenic Second Stage (DCSS) with an RL10C-2-1 engine and a metallic trisector payload fairing (PLF) that is 16.7 feet (5.1 meters) in diameter and 65 feet (19.8 meters) in length. The rocket uses liquid hydrogen and liquid oxygen in all stages, with each RS-68A main engine generating 702,000 pounds (312.3 kiloNewtons) of thrust and generating a combined 2.1 million pounds (9.4 mega-Newtons) of liftoff thrust, and the RL10C-2-1 upper stage engine producing 24,750 pounds (106.7 Newtons) of thrust. Testing and connection of the stages took place within the Horizontal Integration Facility (HIF) adjacent from the launch pad. The port and starboard boosters were attached to the center core, then the DCSS was joined to the interstage on the forward end of the center booster. Also completed in the HIF, the Launch Mate Unit (LMU) was fastened to the three CBCs to serve as the structural base of the rocket when it stands atop on the pad's launch table. The LMU contains the 12 holddown bolts that fire to release the fully fueled, 1.6-million-pound (725,700-kg) rocket at liftoff. The 170-foot-long (51.8-meter) rocket then emerged from the HIF on Dec. 19, 2023, riding horizontally aboard a 36-wheel, diesel-powered transporter down the roadway to the launch pad. The Fixed Pad Erector raised the vehicle upright at the pad on Dec. 20, 2023 to complete the Launch Vehicle on Stand (LVOS) milestone in preparation for Delta IV Heavy to launch NROL-70. <center><a href="http://www.collectspace.com/review/ula_delta_nrol-70_poster03-lg.jpg" target="AirLock"><img src="http://www.collectspace.com/review/ula_delta_nrol-70_poster03.jpg" width="400" height="267" border="0"></a></center> Integrated operations began Feb. 26 as encapsulated NROL-70 payload was delivered to the pad and hoisted atop the rocket, finishing assembly of the 235-foot-tall (71.6-meter) Delta IV Heavy and kicking off the final phase of the launch campaign. NROL-70 will be the 389th Delta launch since 1960, the 45th Delta IV and 16th in the Heavy configuration. It also marks the 294th launch of a Delta rocket from Cape Canaveral and the 35th for the Delta IV. This is the final Delta IV Heavy as ULA transitions its future missions from the East and West Coasts to the new Vulcan rocket. A single-core Vulcan is our next generation launch solution that offers accessibility and even higher performance to launch heavy-class missions for the nation.</blockquote>[/B][/QUOTE]
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<table border=0 cellpadding=0 cellspacing=0 width="600"><TR><td bgcolor="#000000"><TABLE BORDER=0 cellpadding=4 border=0 cellspacing=1 WIDTH="100%"><TR bgcolor="#660000"><TD COLSPAN=2><CENTER>T O P I C     R E V I E W</CENTER></TD></TR><TR bgcolor="#494949"><TD valign=top>Robert Pearlman</TD><TD>United Launch Alliance (ULA) release <blockquote>NROL-70: Final Delta IV Heavy prepared for launchThe dependable Delta — one of the pillars in American rocketry for more than 60 years — is preparing for its final mission that will carry a national security payload into space to serve and protect the U.S. and our allies.United Launch Alliance (ULA) will use a Delta IV Heavy rocket to launch the NROL-70 mission in service to the National Reconnaissance Office (NRO) and support for the U.S. Space Force's Space Systems Command (SSC).<center><a href="http://www.collectspace.com/review/ula_delta_nrol-70_poster01-lg.jpg" target="AirLock"><img src="http://www.collectspace.com/review/ula_delta_nrol-70_poster01.jpg" width="400" height="601" border="0"></a></center>Liftoff is planned for Thursday, March 28 from Space Launch Complex (SLC)-37 at Cape Canaveral Space Force Station, Florida.This will be the 16th flight of the Delta IV Heavy launch vehicle and 389th and final flight of the Delta program.NROL-70 extends a partnership between the NRO and ULA that began with our very first launch in 2006 and now totals 34 consecutive successes. This will be ULA's 35th NRO launch.The triple-core Delta IV Heavy is the only operational rocket in the world today that possesses all necessary attributes to meet the stringent requirements to perform the NROL-70 mission. It will be the NRO's 12th launch aboard ULA's heavy-performance rocket, which is recognized for delivering high-priority missions for national security and NASA. The rocket first flew in December 2004.The payload aboard NROL-70 is designed, built and operated by the NRO in support of the agency's national security mission to provide intelligence data to U.S. senior policy makers, the Intelligence Community and Department of Defense.Preparations for the NROL-70 launch began with the May 2023 delivery of the rocket from the ULA factory in Decatur, Alabama, to Cape Canaveral via the R/S RocketShip, our ocean-going cargo vessel that transports rocket elements to the launch sites.The final Delta arrived exactly 22 years after the first Delta IV, called the static fire test unit, arrived at the Cape for early pathfinder activities.<center><a href="http://www.collectspace.com/review/ula_delta_nrol-70_poster02-lg.jpg" target="AirLock"><img src="http://www.collectspace.com/review/ula_delta_nrol-70_poster02.jpg" width="400" height="266" border="0"></a></center>Delta IV Heavy consists of a half-million pounds (227,000 kg) of hardware in the form of three common booster cores (CBCs) fitted with RS-68A main engines, a Delta Cryogenic Second Stage (DCSS) with an RL10C-2-1 engine and a metallic trisector payload fairing (PLF) that is 16.7 feet (5.1 meters) in diameter and 65 feet (19.8 meters) in length.The rocket uses liquid hydrogen and liquid oxygen in all stages, with each RS-68A main engine generating 702,000 pounds (312.3 kiloNewtons) of thrust and generating a combined 2.1 million pounds (9.4 mega-Newtons) of liftoff thrust, and the RL10C-2-1 upper stage engine producing 24,750 pounds (106.7 Newtons) of thrust.Testing and connection of the stages took place within the Horizontal Integration Facility (HIF) adjacent from the launch pad. The port and starboard boosters were attached to the center core, then the DCSS was joined to the interstage on the forward end of the center booster.Also completed in the HIF, the Launch Mate Unit (LMU) was fastened to the three CBCs to serve as the structural base of the rocket when it stands atop on the pad's launch table. The LMU contains the 12 holddown bolts that fire to release the fully fueled, 1.6-million-pound (725,700-kg) rocket at liftoff.The 170-foot-long (51.8-meter) rocket then emerged from the HIF on Dec. 19, 2023, riding horizontally aboard a 36-wheel, diesel-powered transporter down the roadway to the launch pad.The Fixed Pad Erector raised the vehicle upright at the pad on Dec. 20, 2023 to complete the Launch Vehicle on Stand (LVOS) milestone in preparation for Delta IV Heavy to launch NROL-70.<center><a href="http://www.collectspace.com/review/ula_delta_nrol-70_poster03-lg.jpg" target="AirLock"><img src="http://www.collectspace.com/review/ula_delta_nrol-70_poster03.jpg" width="400" height="267" border="0"></a></center>Integrated operations began Feb. 26 as encapsulated NROL-70 payload was delivered to the pad and hoisted atop the rocket, finishing assembly of the 235-foot-tall (71.6-meter) Delta IV Heavy and kicking off the final phase of the launch campaign.NROL-70 will be the 389th Delta launch since 1960, the 45th Delta IV and 16th in the Heavy configuration. It also marks the 294th launch of a Delta rocket from Cape Canaveral and the 35th for the Delta IV.This is the final Delta IV Heavy as ULA transitions its future missions from the East and West Coasts to the new Vulcan rocket. A single-core Vulcan is our next generation launch solution that offers accessibility and even higher performance to launch heavy-class missions for the nation.</blockquote></TD></TR><TR bgcolor="#333333"><TD valign=top>Robert Pearlman</TD><TD>Preparations are underway for a 2:45 p.m. EDT (1845 GMT) launch of the last Delta rocket in history.The forecast predicts a 30% chance of acceptable conditions due to strong winds.</TD></TR><TR bgcolor="#494949"><TD valign=top>Robert Pearlman</TD><TD>United Launch Alliance update <blockquote>ULA Delta IV Heavy ScrubbedThe launch of a United Launch Alliance Delta IV Heavy carrying the NROL-70 mission for the National Reconnaissance Office was scrubbed due to an issue with the gaseous nitrogen pipeline which provides pneumatic pressure to the launch vehicle systems. The team initiated operations to secure the vehicle.The launch is now planned for Fri., March 29 at 1:37 p.m. EDT.</blockquote></TD></TR><TR bgcolor="#333333"><TD valign=top>Robert Pearlman</TD><TD>United Launch Alliance update <blockquote>ULA Delta IV Heavy DelayedThe launch of a United Launch Alliance Delta IV Heavy carrying the NROL-70 mission for the National Reconnaissance Office was scrubbed due to an issue with the gaseous nitrogen pipeline which provides pneumatic pressure to the launch vehicle systems.The team continues to troubleshoot the pipeline and more time is needed to instill confidence in the system. We will continue to work with our customer to confirm our next launch attempt and a new launch date will be provided upon resolution.</blockquote></TD></TR><TR bgcolor="#494949"><TD valign=top>Robert Pearlman</TD><TD>United Launch Alliance update <blockquote>ULA Delta IV Heavy Launch Reset for April 9The launch of a United Launch Alliance Delta IV Heavy carrying the NROL-70 mission for the National Reconnaissance Office is now planned for Tuesday, April 9 at 12:53 p.m. EDT, pending range approval.</blockquote></TD></TR><TR bgcolor="#333333"><TD valign=top>Robert Pearlman</TD><TD>United Launch Alliance (ULA) live video<center><iframe width="400" height="225" src="https://www.youtube.com/embed/aTh7dhCYZFE?si=qxgOJM1Oj4M67xgR" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen>

Robert Pearlman

collectSPACE

'Heavy' history: ULA launches final Delta rocket after 64 years
After six decades of launches, the liftoff of the last-ever Delta rocket on Tuesday (April 9), brought with it a change in the way the U.S. sends satellites, interplanetary probes and spacecraft into Earth orbit.
United Launch Alliance (ULA) ignited its last Delta IV Heavy rocket with NROL-70, a classified payload for the National Reconnaissance Office (NRO). The powerful booster departed Space Launch Complex-37 (SLC-37) at the Cape Canaveral Space Force Station in Florida at 12:53 p.m. EDT (1623 GMT), literally setting itself on fire for the 16th and final time.

GACspaceguy

With the last launch of Delta rocket it appears that the Delta wall is now complete.

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