Only the Chinese get to drop rockets on their towns.
https://www.youtube.com/watch?v=DJRZ-eyncVk
The Red Plume you see is Hypergolic fuels - the aforementioned "bad stuff". Highly toxic and carcinogenic.
https://www.youtube.com/watch?v=DJRZ-eyncVk
The Red Plume you see is Hypergolic fuels - the aforementioned "bad stuff". Highly toxic and carcinogenic.
Then again, hypergolic components are generally extremely toxic or ridiculously corrosive or both.
[0] generally because e.g. Chlorine Trifluoride is such a strong oxidiser it's famously[1] hypergolic with stuff not usually considered "fuel" like cloth, people, water, sand or asbestos
[1] http://blogs.sciencemag.org/pipeline/archives/2008/02/26/san...
but china probably use the lesser hypergolic combinations for actuall lift off.
Yep, Long March 2, 3 and 4 use YF-20 engines (and its derivatives) which are UDMH-powered.
They're switching to LOX/Kerosene for LM5.
https://www.airspacemag.com/history-of-flight/disaster-at-xi...
https://www.nasa.gov/press-release/demonstration-proves-nucl...