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Rocket Target Ranges In Miles Or NM?  
User currently offlinewardialer From United States of America, joined Sep 2001, 1183 posts, RR: 0
Posted (2 years 1 month 1 week 3 days 21 hours ago) and read 1827 times:

Whenever theres a launch from Vandenberg AFB either a Minuteman 3 or a Delta rocket, are the distances or ranges ALWAYS measured in Nautical Miles or Miles when the rocket is guided to the kwajalein atoll?

Also, what about commercial aircraft? Are flight plans always use NM instead of Miles?

Thanks

3 replies: All unread, jump to last
 
User currently offlinetdscanuck From Canada, joined Jan 2006, 12709 posts, RR: 79
Reply 1, posted (2 years 1 month 1 week 3 days 13 hours ago) and read 1760 times:

Quoting wardialer (Thread starter):
Whenever theres a launch from Vandenberg AFB either a Minuteman 3 or a Delta rocket, are the distances or ranges ALWAYS measured in Nautical Miles or Miles when the rocket is guided to the kwajalein atoll?

"Always" is a dangerous word but, given that most of the people they're talking to the whole time (aircraft, ships) are using nautical miles it would seem like a good idea to stay in consistent units.

Quoting wardialer (Thread starter):
Also, what about commercial aircraft? Are flight plans always use NM instead of Miles?

I'm not sure about always, but I've never seen one in miles. Every one I've ever touched was in nm.

Tom.


User currently offlinewardialer From United States of America, joined Sep 2001, 1183 posts, RR: 0
Reply 2, posted (2 years 1 month 1 week 3 days 9 hours ago) and read 1713 times:

So do rockets like the Delta and the Minuteman use NM?
I mean not the rockets itself but the launch control tracking systems.


User currently offlinetdscanuck From Canada, joined Jan 2006, 12709 posts, RR: 79
Reply 3, posted (2 years 1 month 1 week 3 days 7 hours ago) and read 1687 times:

Quoting wardialer (Reply 2):
So do rockets like the Delta and the Minuteman use NM?
I mean not the rockets itself but the launch control tracking systems.

Control tracking radar natively measures azimuth (radians), elevation (radians), and time (seconds). It also needs latitude & longitude of the radar site (degrees) and siderial time (radians). Everything else is a conversion. I suspect they convert to nm for operator use but that would be just a convenience thing.

Tom.


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