U.S. CitiesCity-Data Forum Index
Go Back   City-Data Forum > General Forums > Science and Technology > Space
 [Register]
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
View detailed profile (Advanced) or search
site with Google Custom Search

Search Forums  (Advanced)
Reply Start New Thread
 
Old 05-16-2012, 04:30 PM
 
Location: Texas
5,070 posts, read 9,076,032 times
Reputation: 1632

Advertisements

I wonder how a person would know for sure if there was a jet plane in the way? Woops!
Reply With Quote Quick reply to this message

 
Old 05-16-2012, 05:54 PM
 
33,735 posts, read 17,283,910 times
Reputation: 18504
Quote:
Originally Posted by Brian.Pearson View Post
I wonder how a person would know for sure if there was a jet plane in the way? Woops!
On the Saturn V model scale, the modelers are required to file a Notice to Airmen (NOTAM), which can - quite reasonably - be denied. If it isn't, it's really on the pilots in the area to read their NOTAMs and avoid the airspace. Of course, the modelers need to pick a launching spot so that they don't encroach on regulated or restricted airspace.

The crazy Danes in the video above had to contend with 1.6 ton of rocket returning to Earth, so they used a naval firing range in the Baltic, where there are well-established procedures for informing other craft to stay away. (One of their main reason to use a sea launch. Less - much less - red tape.)
Reply With Quote Quick reply to this message
 
Old 05-17-2012, 08:30 PM
 
Location: Texas
5,070 posts, read 9,076,032 times
Reputation: 1632
About the only experience with a rocket (so called) was water-air propelled. It literally went out of sight. But I'm sure that doesn't compare to a 1/10 model of a Saturn rocket!
Reply With Quote Quick reply to this message
 
Old 06-25-2013, 12:15 PM
 
33,735 posts, read 17,283,910 times
Reputation: 18504
Default The Crazy Danes at it again...

This time, they launched their Sapphire proof-of-concept rocket - with active guidance. And it worked...

Launched from a platform that was moving around on the ocean, reaching an apogee of 5 miles, yet its guidance worked so well, it never drifted horizontally more than 460 feet off from the perfect vertical.

That is actually pretty goddamn impressive. The Sapphire rocket is 17 feet tall, weighs roughly 450 pounds, is fueled by a hybrid N2O2/polyurethane motor, and it's all - engine, avionics etc. - built and designed from scratch.

http://www.wired.com/wiredscience/20...xt-stop-space/
Reply With Quote Quick reply to this message
 
Old 06-27-2013, 12:28 AM
 
Location: Somewhere in northern Alabama
18,530 posts, read 55,444,914 times
Reputation: 32227
SWEET!!!! 450 lbs with that takeoff speed - where is the thrust curve???
Reply With Quote Quick reply to this message
 
Old 11-20-2013, 08:25 PM
 
3,279 posts, read 6,737,248 times
Reputation: 8308
Where is the stage separation?
Reply With Quote Quick reply to this message
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.

Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.


Reply
Please update this thread with any new information or opinions. This open thread is still read by thousands of people, so we encourage all additional points of view.

Quick Reply
Message:

Over $104,000 in prizes was already given out to active posters on our forum and additional giveaways are planned!

Go Back   City-Data Forum > General Forums > Science and Technology > Space
Follow City-Data.com founder on our Forum or

All times are GMT -6. The time now is 11:49 AM.

© 2005-2019, Advameg, Inc. · Please obey Forum Rules · Terms of Use and Privacy Policy · Bug Bounty

City-Data.com - Archive 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 - Top