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Estimates of launch vehicle pitching rate

Estimates of launch vehicle pitching rate

Estimates of launch vehicle pitching rate

(OP)
Hi all,

Are there any online resources that have figures for the pithcing moment or rate of a Delta II during ascent into LEO?

Thanks in advance.

RE: Estimates of launch vehicle pitching rate

http://stardust.jpl.nasa.gov/mission/msn.html

would allow you to make a reasonable guess. You'll need to get a bit more specific about the configuration as Delta II has a few options (from what I can tell).

There is a Boeing Payload Engineer's manual, but I cannot find a live link to it.

Cheers

Greg Locock

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.

RE: Estimates of launch vehicle pitching rate

(OP)
Hi and thanks for trying to help.  I looked at the link you gave me and I don't understand how I could make a reaosnable guess from that information.  It's not to scale and no pitch orientation info is given.  By the way, the data I seek is for the Delta II 7320-10C.  I also have the Payload Planner's Guide for the Delta II, but it doesn't have pitching data in it.  I assume that the pitching data would also be a function of the desired orbit as well, but I'm just looking for representative values.

Can anybody help me with this???
Many thanks.

RE: Estimates of launch vehicle pitching rate

You need to construct a speed vs altitude model to agree with the data shown, and the known performance data for the rockets. Then you can work back to a pitching rate.

It'll be of the order of one degree per second.

Cheers

Greg Locock

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.

RE: Estimates of launch vehicle pitching rate

(OP)
Okay, I'll give it a try when I get some time.  I don't need an exact answer, just a typical worst case number.  Thanks.

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