Compressed air isn't fuel. You can compress air and release it to gain a (small) boost, which is what Musk is talking about, but it doesn't burn by itself. You need fuel and oxygen for combustion. Releasing a burst of compressed air is however, not a jet, but a rocket engine type. The space shuttle could not maintain sustained flight. This is super simple. It dropped off its fuel/LOX tank on the way to orbit. The space shuttle engines are rocket engines, not jet engines. They use the fuel/LOX mixture they bring with, not the atmospheric air to provide combustion.

Afaik the compressed system would not be the main source of propulsion but boosters as I previously stated.

compressed cooled oxygen cant be uncompressed or warmed/10

you guys crack me up

https://www.praxair.com/-/media/corporate/praxairus/documents/sds/oxygen/oxygen-medipure-gas-o2-safety-data-sheet-sds-p4638.pdf?la=en&rev=40dca71375bc418f92dbb90647bd5c9a

H270 - MAY CAUSE OR INTENSIFY FIRE; OXIDIZER

https://en.wikipedia.org/wiki/Globally_Harmonized_System_of_Classification_and_Labelling_of_Chemicals

Physical hazards
Substances or articles are assigned to 8 different hazard classes largely based on the United Nations Dangerous Goods System.[5]:59–60 Additions and changes have been necessary since the scope of the GHS includes all target audiences.

Explosives, which are assigned to one of six subcategories depending on the type of hazard they present, as used in the UN Dangerous Goods System.
Gases are category 1 flammable if they start to flame in a range in air at 20 °C (68 °F) and a standard pressure of 101.3 kPa. Category 2 is Non flammable and non toxic gases, and category 3 is toxic gases. Substances and mixtures of this hazard class are assigned to one of two hazard categories on the basis of the outcome of the test or calculation method.
A flammable liquid is a liquid with a flash point of not more than 93 °C (199.4 °F). Substances and mixtures of this hazard class are assigned to one of four hazard categories on the basis of the flash point and boiling point. A pyrophoric liquid is a liquid that, even in small quantities, is liable to ignite within five minutes after coming into contact with air. Substances and mixtures of this hazard class are assigned to a single hazard category on the basis of the outcome of the UN Test N.3.
A flammable solid is one that is readily combustible or may cause or contribute to fire through friction. Readily combustible solids are powdered, granular, or pasty substances which are dangerous if they can be easily ignited by brief contact with an ignition source, such as a burning match, and if the flame spreads rapidly. it is further divided into
• flammable solids,
• polymerizing substances

where did someone say that?

And?

lulz

https://www.theonion.com/nasa-issues-formal-apology-for-1969-genocide-of-moon-na-1822370108

Speaking of acting why you getting so defensive over a joke post
and defending your beliefs so zealously the past few pages (especially post 13413 to post 13417)



after claiming you don't care what we believe in?

This post was edited by kai_jph on Jul 16 2019 10:08pm

joke over your head/10



how is a fuel that's used as a propellant and listed as flammable, not also be able to be modified as a controlled combustible?

Are you saying science is to dumb?

Try to list real scientific citations, not your Jesuit/Masonic "IM NOT A RELIGION" spaceball religion sources/cartoons.

That might be hard for you.











Sounds like your getting your panties in a twist and need to project,
meaning that you really obviously care what i belive and are offended i dont care about your Spaceball Religion.
Thats why you've been trolling for 2 years, and yet you haven't been able to prove a single point.
Must be so frustrating for you, my deepest sympathies.

this ones much more ironic

https://www.popularmechanics.com/space/moon-mars/a13598/is-there-poop-on-the-moon-17630231/