Spacecraft 3D

You like this Delta II Heavy model?Good, because you can have one just like it on your table. Go here. Download the AR target and print it out. Download the Android or iOS app and run it. Navigate Select Spacecraft > Launch > Delta II Heavy, point your phone at the target, and there you…

Fins for the win

Good news for scale modelers: ISRO launched a rocket with fins at the back! Bad news: Fins forward too. They’re the wings and tail of their reusable launch vehicle test article.  

Lots of impulse

Thanks to The Rocketry Blog for the link to this video from today’s QM-1 static test: Peak thrust is 3.6 million pounds. I think average thrust would be about 2.9 million pounds, or 13 MN (meganewtons). Two minutes firing time gives a total impulse of about 1.6 GN-s (giganewton-seconds). Coincidentally, Rocketry Victoria has been getting headlines about…