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Why is there nothing about the history of Delta IV? "The Delta IV entered the space launch market when global capacity was already much higher than demand" tells us nothing. Is it embarrassment that the only US space rocket is 60 years old? I suggest adding a brief history going back to the origins of Delta. Royalcourtier ( talk) 02:51, 6 December 2014 (UTC)
"Delta IV/Evolved Expendable Launch Vehicle Program On Oct. 16, 1998, the U.S. Air Force announced the procurement of 19 Boeing Delta IV launches for the Evolved Expendable Launch Vehicle (EELV) program valued at $1.38 billion. - "This initial launch services contract covers small, medium and heavy payload class launches from 2002 to 2006. It splits 28 missions in a dual-source procurement designed to encourage greater contractor investment and competition in the U.S. space launch industry, and to decrease the Air Force's overall development cost. - "The Air Force also entered into a $500 million agreement with Boeing, supplementing development of the Delta IV family of launch vehicles for meeting all Air Force EELV requirements. - "The Boeing Delta IV/Evolved Expendable Launch Vehicle Program (EELV) is a multi-year U.S. Air Force effort aimed at reducing space launch costs by more than 25 percent. To meet these requirements, Boeing is offering the Delta IV family of vehicles. The family includes five launch vehicles: Medium, Heavy, and three variants of the Medium vehicle, known as Medium-plus, which have been introduced to meet the needs of the commercial market. - "Program Timing "The EELV program development and procurement cycle began in 1995. During the first phase, four competitors completed a 15-month contract to validate low-cost concepts. In December 1996, two contractors were selected to participate in the second phase, known as the Pre-Engineering, Manufacturing and Development (Pre-EMD) phase, a firm, fixed-price 17-month contract worth $60 million for each company." - Rod57 ( talk) 03:48, 5 January 2024 (UTC)
WP:UNITS says "In non-scientific articles relating to the United States, the primary units are US customary" applies since this is a US product. Some exceptions the Delta IV rocket that I can think of are payload mass and the 4 m and 5 m diameters. - Fnlayson ( talk) 18:05, 18 March 2015 (UTC)
Spacecraft articles overlap science and technology. I think that the consistency that matters is to inform the reader regardless of their nationality. Being that the metric International System is, well, international, I feel that the primary unit should be metric followed by a conversion to Imperial. As the WP article stands now, the primary for height is feet and the primary for diameter is meter (without conversion). Whatever you decide, do it consistently. Cheers, BatteryIncluded ( talk) 21:16, 18 March 2015 (UTC)
Is this configuration already retired? — Preceding unsigned comment added by 94.220.12.243 ( talk) 08:38, 3 January 2017 (UTC)
Most of the other rockets have separate launches pages, as that information is separate from the vehicles themselves. Should we move that information to a new page? UnknownM1 ( talk) 06:18, 19 February 2018 (UTC)
I just noticed there is a weird kind of hybrid page of multiple different rockets, separated by decades, under the "Delta" wing. It is very confusing and sort of unhelpful. It seems that the whole page needs reform or rework. UnknownM1 ( talk) 06:20, 19 February 2018 (UTC)
The Delta IV rocket has launched 39 times, and it even says that later in the article. However, in the infobox it still says it's only launched 37 times. Can that please be updated? SnowballEffect ( talk) 23:23, 12 May 2019 (UTC)
This is the
talk page for discussing improvements to the
Delta IV article. This is not a forum for general discussion of the article's subject. |
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|
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Why is there nothing about the history of Delta IV? "The Delta IV entered the space launch market when global capacity was already much higher than demand" tells us nothing. Is it embarrassment that the only US space rocket is 60 years old? I suggest adding a brief history going back to the origins of Delta. Royalcourtier ( talk) 02:51, 6 December 2014 (UTC)
"Delta IV/Evolved Expendable Launch Vehicle Program On Oct. 16, 1998, the U.S. Air Force announced the procurement of 19 Boeing Delta IV launches for the Evolved Expendable Launch Vehicle (EELV) program valued at $1.38 billion. - "This initial launch services contract covers small, medium and heavy payload class launches from 2002 to 2006. It splits 28 missions in a dual-source procurement designed to encourage greater contractor investment and competition in the U.S. space launch industry, and to decrease the Air Force's overall development cost. - "The Air Force also entered into a $500 million agreement with Boeing, supplementing development of the Delta IV family of launch vehicles for meeting all Air Force EELV requirements. - "The Boeing Delta IV/Evolved Expendable Launch Vehicle Program (EELV) is a multi-year U.S. Air Force effort aimed at reducing space launch costs by more than 25 percent. To meet these requirements, Boeing is offering the Delta IV family of vehicles. The family includes five launch vehicles: Medium, Heavy, and three variants of the Medium vehicle, known as Medium-plus, which have been introduced to meet the needs of the commercial market. - "Program Timing "The EELV program development and procurement cycle began in 1995. During the first phase, four competitors completed a 15-month contract to validate low-cost concepts. In December 1996, two contractors were selected to participate in the second phase, known as the Pre-Engineering, Manufacturing and Development (Pre-EMD) phase, a firm, fixed-price 17-month contract worth $60 million for each company." - Rod57 ( talk) 03:48, 5 January 2024 (UTC)
WP:UNITS says "In non-scientific articles relating to the United States, the primary units are US customary" applies since this is a US product. Some exceptions the Delta IV rocket that I can think of are payload mass and the 4 m and 5 m diameters. - Fnlayson ( talk) 18:05, 18 March 2015 (UTC)
Spacecraft articles overlap science and technology. I think that the consistency that matters is to inform the reader regardless of their nationality. Being that the metric International System is, well, international, I feel that the primary unit should be metric followed by a conversion to Imperial. As the WP article stands now, the primary for height is feet and the primary for diameter is meter (without conversion). Whatever you decide, do it consistently. Cheers, BatteryIncluded ( talk) 21:16, 18 March 2015 (UTC)
Is this configuration already retired? — Preceding unsigned comment added by 94.220.12.243 ( talk) 08:38, 3 January 2017 (UTC)
Most of the other rockets have separate launches pages, as that information is separate from the vehicles themselves. Should we move that information to a new page? UnknownM1 ( talk) 06:18, 19 February 2018 (UTC)
I just noticed there is a weird kind of hybrid page of multiple different rockets, separated by decades, under the "Delta" wing. It is very confusing and sort of unhelpful. It seems that the whole page needs reform or rework. UnknownM1 ( talk) 06:20, 19 February 2018 (UTC)
The Delta IV rocket has launched 39 times, and it even says that later in the article. However, in the infobox it still says it's only launched 37 times. Can that please be updated? SnowballEffect ( talk) 23:23, 12 May 2019 (UTC)