Fueling Begins

Pumps have begun the slow-fill stage of loading liquid hydrogen into the core boosters of the Delta IV Heavy this morning. Each of the three core stages holds some 110,000 gallons of the propellant which is kept chilled to minus 423 degrees F. Liquid oxygen at minus 297 degrees will begin loading soon.

12 thoughts on “Fueling Begins”

  1. Hi. When you mention numbers (such as galon etc) would it be possible to also write the metric numbers (litre etc)?

  2. Hi. When you mention numbers (such as galon etc) would it be possible to also write the metric numbers (litre etc)? Als it would be interesting with Celcius degres (or perhaps Kelvin since ist more mor of a sience scale)

  3. I agree, it is long past time for us to make more use of, if not actually adopt, the metric system. I suspect that NASA and its personnel make more use of metric units than most others in this country, so why not post information using those units? At the least, post information using both metric and non-metric units.

  4. Hi friends from NASA. There are some complaints about the imperial units used in this article. I am Portuguese and I use the S.I. (International System). I read many articles here at NASA.GOV that have both systems written. I think it’s a good policy. I read a lot of aviation texts and it is all in Feet, Knots, Miles, and to tell you the truth I like it. I suggest, my friends, that you use both because NASA is an INTERNATIONAL thing. I wish you the best of luck for today’s LAUNCH. Let’s GO !!!

  5. It wasnt ment to be critique. I just suggest to use both. Im sitting in Sweden watching. (We use the metric system) I have this blog (and later on the live feed) up on the big screen in my classroom. My studenst hasve been watching the prosess with great interest. Its easier for them to have both “metric” and “Imperial” units.

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