dantes76
17-01-2007, 21:52
XCOR’s Methane/LOX Engine Tests Go “Incredibly Well”
In a press release submitted today, XCOR Aerospace announced that their innovative new rocket engine, the 5M15, has been tested successfully.
XCOR Engine Test
The 7,500 lbf engine is the first of its kind, as methane-oxygen (a fuel-oxidizer combination superior to those currently in use today) has long been ignored by large aerospace companies and NASA as having too much “technology risk.” The engine is the result of a contract that XCOR has with Alliant Techsystems (ATK). Currently, the engine is a workhorse prototype, and does not have any cooling mechanism. However, XCOR has plans to construct a regeneratively cooled engine during this year. Read the original press release.
The benefits of methane-oxygen are many. As opposed to kerosene-oxygen, it has a higher specific impulse, and the combination is less flammable due to a higher oxidizer-to-fuel ratio. Methane and hydrogen are unique in that they can be pressurized greatly, eliminating the need for complicated pump systems. And while hydrogen-oxygen may have a higher specific impulse, the storage of hydrogen requires much more expensive cryogenic storage equipment and is more hazardous. Hydrogen is also less dense, requiring larger, more massive tanks to store. Finally, methane-oxygen will be the method of choice for future Mars explorers, as they will be able to utilize indigenous resources (the atmosphere) to create a great deal of methane from a small hydrogen feedstock. Robert Zubrin, founder of The Mars Society, has proven this feasible (study).
Two days ago, I got in touch with Aleta Jackson at XCOR for an interview. In light of these tests, I will definitely try to get more details about where things are going from here. Subscribe to the feed so you don’t miss it!
http://img126.imageshack.us/img126/4224/mainphpg2viewcoretn9.jpg
http://img126.imageshack.us/img126/9951/070116liquidmethanerocktz1.jpg
http://spaceliberates.us/news/xcors-methanelox-engine-tests-go-incredibly-well/
In a press release submitted today, XCOR Aerospace announced that their innovative new rocket engine, the 5M15, has been tested successfully.
XCOR Engine Test
The 7,500 lbf engine is the first of its kind, as methane-oxygen (a fuel-oxidizer combination superior to those currently in use today) has long been ignored by large aerospace companies and NASA as having too much “technology risk.” The engine is the result of a contract that XCOR has with Alliant Techsystems (ATK). Currently, the engine is a workhorse prototype, and does not have any cooling mechanism. However, XCOR has plans to construct a regeneratively cooled engine during this year. Read the original press release.
The benefits of methane-oxygen are many. As opposed to kerosene-oxygen, it has a higher specific impulse, and the combination is less flammable due to a higher oxidizer-to-fuel ratio. Methane and hydrogen are unique in that they can be pressurized greatly, eliminating the need for complicated pump systems. And while hydrogen-oxygen may have a higher specific impulse, the storage of hydrogen requires much more expensive cryogenic storage equipment and is more hazardous. Hydrogen is also less dense, requiring larger, more massive tanks to store. Finally, methane-oxygen will be the method of choice for future Mars explorers, as they will be able to utilize indigenous resources (the atmosphere) to create a great deal of methane from a small hydrogen feedstock. Robert Zubrin, founder of The Mars Society, has proven this feasible (study).
Two days ago, I got in touch with Aleta Jackson at XCOR for an interview. In light of these tests, I will definitely try to get more details about where things are going from here. Subscribe to the feed so you don’t miss it!
http://img126.imageshack.us/img126/4224/mainphpg2viewcoretn9.jpg
http://img126.imageshack.us/img126/9951/070116liquidmethanerocktz1.jpg
http://spaceliberates.us/news/xcors-methanelox-engine-tests-go-incredibly-well/