Talk:Delta IV

Corrected some incorrect data about the launch sites and spacecraft. -- Nick L.

I'm not sure if this can be used for anything, but there's a nice photo of the Delta IV's second-stage here: http://mediaarchive.ksc.nasa.gov/detail.cfm?mediaid=24253 --NeuronExMachina 02:15, 19 Dec 2004 (UTC)

I read that Boeing and Mitsubishi were developing a more powerful upper stage engine called MB-60 for use on the Delta IV. However, I have not seen any updates for several years. Does anyone know if this is still being developed?--Todd Kloos 04:23, 24 Dec 2004 (UTC)

Capitalization of class names

The Boeing site (from the link on the main page) refers to each variant with a capitalized name (i.e. Medium or Heavy as opposed to medium or heavy) whenever they are reffered to. Because of this, and if no one objects, I'd like to go through and change all of the references to this format. I think it can be succesfully argued that these are all proper nouns as used, rather than simply adjectives. --Icelight 29 June 2005 15:25 (UTC)

Upcoming Delta IV launch

If nobody has a problem with it, I would like to add some info about the upcoming GOES-N launch on a Delta IV tomorrow. Nick L. 15:57, 28 July 2005 (UTC)

Launch delayed ;-) --Bricktop 22:15, 28 July 2005 (UTC)

The first launch of a valuable payload aboard the Delta IV Heavy is scheduled for fall 2005 -- does this article need an update? Ojw 20:44, 20 January 2006 (UTC)

The GOES-N flight is currently scheduled for Feburary 6, 2006. Might as well wait until the launch to do an update. Linky. Jbanes 21:51, 3 February 2006 (UTC)

SLC-37B not site of Apollo 1 or 7

The page had stated that Delta IVs launched from the "same site" as the Apollo 1 fire and Apollo 7, however, those launches were from SLC-34, just next door to 37B. The Apollo_1 and Apollo_7 pages confirm this. I can also vouch from personal experience, having stood inside the launch ring on SLC-34 and seen a loaded booster from the parking lot at SLC-37. (sadly, that launch got scrubbed and I missed it. :()

Partial success

I'm new here so someone who knows better please fix the laugable "partial sucesess" thing re the dec 2004 launch. Eliminating POV, that means failure. Wiki is not a public relations firm is it. —The preceding unsigned comment was added by 65.188.193.14 (talk • contribs) .

I don't see where calling something a "partial success" is POV. Doing any activity is rarely black and white. Launching rockets is no different. Had the payload been lost that would be a failure. This was a demonstration launch. Most of the goals of the demonstration were met. There was a failure in terms of the early fuel out indication, but the test payload did make it into orbit. For me at least that fits as partial.

On one other note, please sign your comments on talk pages with four tildes (~~~~) to let others know who said what. Thanks. --StuffOfInterest 13:09, 20 January 2006 (UTC)

I would like to throw in a few cents. Partial success is used in numerous places in the industry to describe notable accidents that didn't cause a complete mission loss of the launch vehicle. You see it in the standard text International Reference Guide to Space Launch Systems, Iaskowitz, Hopkins, and Hopkins. You see it in other industry reference sites etc. If you don't like its use that's fine, but there's a difference between it being marketing fluff by Boeing and it being the standard way the industry talks about such accidents. Having the article consistent with industry practice is perfectly reasonable. Georgewilliamherbert 22:36, 20 January 2006 (UTC)

If the mission were carrying a real satellite, then yes, it would be a failure. However, in light of what the mission was - a TEST mission, it is a partial success. This is why the USAF decided to fly a test mission, to make sure everything works. Not only did this mission prove out many aspects of the Heavy variant, it accomplished what a test flight is meant to do - find problems so that they can be fixed before something important ends up in a low orbit. Nick L. 06:37, 21 January 2006 (UTC)