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== AFC submission pending review ==
{{Infobox rocket
|image = NROL-71 Wide (cropped alt).jpg
|caption = Delta 4 Heavy launches from Vandenberg

|name = Delta 4 Heavy
|function = Orbital [[heavy-lift launch vehicle]]
|manufacturer = [[United Launch Alliance]]
|webpage =
|country-origin = [[United States]]

|cpl = US$350 million <ref>{{cite web|title=ULA CEO Tory Bruno|url=https://twitter.com/torybruno/status/963109303291854848|website=Twitter|access-date=12 February 2018|quote=Delta IV Heavy goes for about $350M. That's current and future, after the retirement of both Delta IV Medium and Delta II.}}</ref><br/>NRO: US$440 million
|cpl-year = 2018
|height = {{cvt|72|m}}
|diameter = {{cvt|5|m}}
|width = {{cvt|15|m}}
|mass = {{cvt|733000|kg}}
|stages = 2+

|capacities =
{{Infobox rocket/payload
|location = [[Low Earth orbit|LEO]]
|kilos = {{cvt|28790|kg}}
}}
{{Infobox rocket/payload
|location = [[Geostationary transfer orbit|GTO]]
|kilos = {{cvt|14220|kg}}
}}
|family = [[Delta IV|Delta 4]]
|comparable = {{flatlist|
* [[Long March 5]]
* [[Ariane 5]]
* [[Falcon Heavy]]
* [[Titan 4|Titan IV]]
* [[Proton-M]]
}}
|status = Active
|sites = {{unbulleted list
| [[Cape Canaveral Air Force Station|Cape Canaveral]], [[Cape Canaveral Space Launch Complex 37|SLC-37B]]
| [[Vandenberg Air Force Base|VAFB]], [[Vandenberg Space Launch Complex 6|SLC-6]]
}}
|launches = 12 <!-- as of 10 December 2020 NROL-44 launch -->
|success = 11
|fail =
|partial = 1
|other_outcome =
|first = 21 December 2004 ([[List of USA satellites|USA-181]])
|last = 10 December 2020 ([[NROL|NROL-44]])
|payloads = {{flatlist|
* [[EFT-1]]
* [[NROL|NRO classified payloads]]
** [[KH-11 Kennen|Kennen]]
** [[Orion (satellite)|Orion]]
* ''[[Parker Solar Probe]]''
}}
|stagedata =
{{Infobox rocket/stage
|type = booster
|diff = [[Common Booster Core|CBC]]
|stageno =
|name =
|number = 2
|length = {{cvt|40.8|m}}
|diameter = {{cvt|5.1|m}}
|width =
|empty = {{cvt|26000|kg}}
|gross = {{cvt|226400|kg}}
|propmass = {{cvt|200400|kg}} <ref name=sf1d4>{{cite web|title=Delta IV Heavy|url=http://www.spaceflight101.com/delta-iv-heavy.html|website=Spaceflight 101|access-date=July 26, 2014}}</ref>
|engines = 1 [[RS-68A]]
|thrust = {{cvt|3140|kN}}
|total = {{cvt|6280|kN}}
|SI = '''[[Sea level]]:''' {{cvt|360|isp}}<br/>'''[[Vacuum]]:''' {{cvt|412|isp}}
|burntime = 242 seconds <ref name=d4ppg>{{cite web|url=http://www.ulalaunch.com/uploads/docs/Launch_Vehicles/Delta_IV_Users_Guide_June_2013.pdf|title=Delta IV Payload Planner's Guide, June 2013 |publisher=United Launch Alliance|archive-url=https://web.archive.org/web/20140710005717/http://www.ulalaunch.com/uploads/docs/Launch_Vehicles/Delta_IV_Users_Guide_June_2013.pdf|archive-date=July 10, 2014 |access-date=July 26, 2014|url-status=dead}}</ref>
|fuel = [[LH2|LH<sub>2</sub>]] / [[LOX]]
}}
{{Infobox rocket/stage
|type = stage
|diff = [[Common Booster Core|CBC]]
|stageno = First
|name =
|length = {{cvt|40.8|m}}
|diameter = {{cvt|5.1|m}}
|width =
|empty =
|gross = {{cvt|226400|kg}}
|propmass = {{cvt|200400|kg}}
|engines = 1 [[RS-68A]]
|thrust = {{cvt|3140|kN}}
|SI = '''[[Sea level]]:''' {{cvt|360|isp}}<br/>'''[[Vacuum]]:''' {{cvt|412|isp}}
|burntime = 328 seconds
|fuel = [[LH2|LH<sub>2</sub>]] / [[LOX]]
}}
{{Infobox rocket/stage
|type = stage
|diff = [[Delta Cryogenic Second Stage|DCSS]]
|stageno = Second

|name =
|length = {{cvt|13.7|m}}
|diameter = {{cvt|5.1|m}}
|width =
|empty =
|gross = {{cvt|30700|kg}}
|propmass = {{cvt|27220|kg}}
|engines = 1 [[RL10|RL10-B-2]]
|thrust = {{cvt|110|kN}}
|SI = {{cvt|462|isp}}
|burntime = 1125 seconds
|fuel = [[LH2|LH<sub>2</sub>]] / [[LOX]]
}}
}}
[[File:Delta IV Heavy on pad with Orion EFT-1 (KSC-2014-4686).jpg|thumb|392x392px|right|Delta 4 Heavy for [[Exploration Flight Test-1]]]]

{{AfC submission|||ts=20210217224149|u=71.183.212.131|ns=118}}
{{Afc comment|1=A discussion related to this draft can be found here [[Wikipedia talk:WikiProject Spaceflight#List of...launches page creation and formatting]] [[User:OkayKenji|OkayKenji]] <sup>([[User talk:OkayKenji|talk]] • [[Special:Contributions/OkayKenji|contribs]])</sup> 02:51, 1 March 2021 (UTC)}}
{{use mdy dates|date=February 2020}}
{{short description|variant of the Delta 4 space launch vehicle}}
{{short description|variant of the Delta 4 space launch vehicle}}
{{Use American English|date=August 2020}}
{{Use American English|date=August 2020}}
{{Use dmy dates|date=August 2020}}
{{Use dmy dates|date=August 2020}}


[[File:Delta IV Heavy on pad with Orion EFT-1 (KSC-2014-4686).jpg|thumb|392x392px|right|Delta 4 Heavy for [[Exploration Flight Test-1]]]]{{use mdy dates|date=February 2020}}
== About the Delta 4 Heavy ==

The '''Delta 4 Heavy''' ('''Delta 9250H''') is an [[Evolved Expendable Launch Vehicle|expendable]] [[heavy-lift launch vehicle]], the largest type of the [[Delta IV]] family and the world's second highest-capacity rocket in operation, behind [[SpaceX]]'s [[Falcon Heavy]] rocket (in expendable configuration) and closely followed by CNSA's [[Long March 5]] Rocket.<ref>{{cite web|title=Mission Status Center|url=http://www.spaceflightnow.com/delta/d364/status.html|website=SpaceflightNow |access-date=26 July 2014|quote=The ULA Delta 4-Heavy is currently the world's largest rocket, providing the nation with reliable, proven, heavy lift capability for our country's national security payloads from both the east and west coasts.}}</ref><ref>{{cite web|title=Falcon Heavy, SpaceX's Big New Rocket, Succeeds in Its First Test Launch|url=https://www.nytimes.com/2018/02/06/science/falcon-heavy-spacex-launch.html |work=The New York Times|access-date=6 February 2018|quote=The Falcon Heavy is capable of lifting 140,000 pounds to low-Earth orbit, more than any other rocket today.}}</ref> It is manufactured by [[United Launch Alliance]] and was first launched in 2004.<ref>[http://www.boeing.com/news/releases/2004/q4/nr_041222m.html "Boeing Delta IV Heavy Achieves Major Test Objectives in First Flight"] {{webarchive |url=https://web.archive.org/web/20120419170931/http://www.boeing.com/news/releases/2004/q4/nr_041222m.html|date=19 April 2012}}, Boeing, 2004, accessed 22 March 2012.</ref>
The '''Delta 4 Heavy''' ('''Delta 9250H''') is an [[Evolved Expendable Launch Vehicle|expendable]] [[heavy-lift launch vehicle]], the largest type of the [[Delta IV]] family and the world's second highest-capacity rocket in operation, behind [[SpaceX]]'s [[Falcon Heavy]] rocket (in expendable configuration) and closely followed by CNSA's [[Long March 5]] Rocket.<ref>{{cite web|title=Mission Status Center|url=http://www.spaceflightnow.com/delta/d364/status.html|website=SpaceflightNow |access-date=26 July 2014|quote=The ULA Delta 4-Heavy is currently the world's largest rocket, providing the nation with reliable, proven, heavy lift capability for our country's national security payloads from both the east and west coasts.}}</ref><ref>{{cite web|title=Falcon Heavy, SpaceX's Big New Rocket, Succeeds in Its First Test Launch|url=https://www.nytimes.com/2018/02/06/science/falcon-heavy-spacex-launch.html |work=The New York Times|access-date=6 February 2018|quote=The Falcon Heavy is capable of lifting 140,000 pounds to low-Earth orbit, more than any other rocket today.}}</ref> It is manufactured by [[United Launch Alliance]] and was first launched in 2004.<ref>[http://www.boeing.com/news/releases/2004/q4/nr_041222m.html "Boeing Delta IV Heavy Achieves Major Test Objectives in First Flight"] {{webarchive |url=https://web.archive.org/web/20120419170931/http://www.boeing.com/news/releases/2004/q4/nr_041222m.html|date=19 April 2012}}, Boeing, 2004, accessed 22 March 2012.</ref>


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|{{Planned}}
|{{Planned}}
|}
|}

== See also ==
[[List of Thor and Delta launches]]

[[List of Thor and Delta launches (2000-2009)|List of 2000-2009 Thor and Delta launches]]

[[List of Thor and Delta launches (2010-2019)|List of 2010-2019 Thor and Delta launches]]

[[List of Thor and Delta launches (2020-2029)|List of 2020-2029 Thor and Delta launches]]

[[Delta IV Heavy|Delta 4 Heavy]]

[[United Launch Alliance|ULA]]

[[Delta IV|Delta 4]]

[[Draft:List of Delta 4 Medium launches|List of Delta 4 Medium launches]]

[[Draft:List of Delta 4-M launches|List of Delta 4-M launches]]

[[Delta II|Delta 2]]

[[Delta I|Delta 1]]

[[Delta (rocket family)|Delta]]


== Notes ==
== Notes ==

Revision as of 23:01, 20 March 2021

Delta 4 Heavy for Exploration Flight Test-1

The Delta 4 Heavy (Delta 9250H) is an expendable heavy-lift launch vehicle, the largest type of the Delta IV family and the world's second highest-capacity rocket in operation, behind SpaceX's Falcon Heavy rocket (in expendable configuration) and closely followed by CNSA's Long March 5 Rocket.[1][2] It is manufactured by United Launch Alliance and was first launched in 2004.[3]

The Delta 4 Heavy consists of a central Common Booster Core (CBC), with two additional CBCs as liquid rocket boosters instead of the GEM-60 solid rocket motors used by the Delta IV Medium+ versions. At lift off, all three cores operate at full thrust, and 44 seconds later the center core throttles down to 55% to conserve fuel until booster separation. The boosters burn out at 242 seconds after launch and are separated as the core booster throttles back up to full thrust. The core burns out 86 seconds later, and the second stage completes the ascent to orbit.[4]

The rocket uses three RS-68 engines, one in the central core and one in each booster.[5]

Launch History

Flight Date Payload [6] Mass Launch site Outcome [6]
1 December 21, 2004 DemoSat, Sparkie / 3CS-1 and Ralphie / 3CS-2 ~13,228 pounds (6000 kilograms) Cape Canaveral, SLC-37B Partial failure[a]
2 November 11, 2007 DSP-23 Defense Support Program 11,574 pounds (5,250 kilograms) Cape Canaveral, SLC-37B Success
3 January 18, 2009 Orion 6 / Mentor 4 (USA-202 / NROL-26) Classified Cape Canaveral, SLC-37B Success
4 November 21, 2010 Orion 7 / Mentor 5 (USA-223 / NROL-32) Classified Cape Canaveral, SLC-37B Success
5 January 20, 2011 KH-11 Kennen 15 (USA-224 / NROL-49) <37,479 pounds (17,000 kilograms) Vandenberg, SLC-6 Success
6 June 29, 2012 Orion 8 / Mentor 6 (USA-237 / NROL-15) Classified Cape Canaveral, SLC-37B Success
7 August 28, 2013 KH-11 Kennen 16 (USA-245 / NROL-65) <37,479 pounds (17,000 kilograms) Vandenberg, SLC-6 Success
8 December 5, 2014 Orion Exploration Flight Test-1 (EFT-1) 46,297 pounds (21,000 kilograms)[7][b] Cape Canaveral, SLC-37B Success
9 June 11, 2016 Orion 9 / Mentor 7 (USA-268 / NROL-37) Classified Cape Canaveral, SLC-37B Success
10 August 12, 2018 Parker Solar Probe[c] 1,510 pounds (685 kilograms) Cape Canaveral, SLC-37B Success
11 January 19, 2019 NROL-71 Classified Vandenberg, SLC-6 Success
12 December 11, 2020 Orion 10 / Mentor 8 (USA-268/ NROL-44)[8][9] Classified Cape Canaveral, SLC-37B Success

Future launches

The data in this table comes from[10] and [11]
Flight Date Payload Mass Launch site Outcome
13 April 29, 2021 NROL-82 41,800 pounds (19,000 kilograms) Vandenberg, SLC-6 Planned

Notes

  1. ^ CBCs underperformed, lower orbit than planned
  2. ^ The officially reported mass of 21,000 kg includes the Launch Abort System (LAS) which did not reach orbit, but excludes the residual mass of the upper stage, which did reach orbit, likely offsetting the mass of the LAS.
  3. ^ Star 48BV upper stage

References

  1. ^ "Mission Status Center". SpaceflightNow. Retrieved 26 July 2014. The ULA Delta 4-Heavy is currently the world's largest rocket, providing the nation with reliable, proven, heavy lift capability for our country's national security payloads from both the east and west coasts.
  2. ^ "Falcon Heavy, SpaceX's Big New Rocket, Succeeds in Its First Test Launch". The New York Times. Retrieved 6 February 2018. The Falcon Heavy is capable of lifting 140,000 pounds to low-Earth orbit, more than any other rocket today.
  3. ^ "Boeing Delta IV Heavy Achieves Major Test Objectives in First Flight" Archived 19 April 2012 at the Wayback Machine, Boeing, 2004, accessed 22 March 2012.
  4. ^ Cite error: The named reference d4ppg was invoked but never defined (see the help page).
  5. ^ "Delta 4-Heavy likely heading for geosynchronous orbit with top secret payload". Spaceflight Now. 26 August 2020. Retrieved 27 August 2020.
  6. ^ a b Krebs, Gunter. "Delta-4". Gunter's Space Page. Retrieved 15 March 2018.
  7. ^ "NASA Orion Exploration Flight Test-1 PRESS KIT" (PDF). NASA. December 2014. p. 12. Public Domain This article incorporates text from this source, which is in the public domain.
  8. ^ "Launch Schedule". Spaceflight Now. 27 October 2020. Retrieved 31 October 2020.
  9. ^ "Launch Mission Execution Forecast". 45th Weather Squadron - Patrick Air Force Base. 30 October 2020. Retrieved 31 October 2020. Public Domain This article incorporates text from this source, which is in the public domain.
  10. ^ "United Launch Alliance - Delta IV Heavy | NROL-82 Rocket Launch". Space Launch Schedule. Retrieved 17 February 2021.
  11. ^ "NROL-44 Investigation Underway, As ULA Prepares for Last Delta IV Heavy Missions". AmericaSpace. 4 September 2020. Retrieved 17 February 2021.
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