You call replacing a gas generator engine (RD-0110) with a staged combustion engine (RD-0124) with over twice the chamber pressure an 'upgrade'? You don't know WTF you are talking about. The engine is completely new with no relation other than that it is used as a drop in replacement with compatible interfaces.
The RD-191 to a lot of people maybe be just an RD-170 with a quarter of the combustion chambers but things are a lot more complicated than that. Plus I only gave those two engines as examples. There are more.
Pump fed engines, Kestrel and Draco, are trivial to design in comparison. The Russians also designed some of those much later than what you mention such as the S5.98M engine used in the Briz-M upper stage used in Proton. They also designed a LOX/LH2 expander cycle engine called the RD-0146. No man. The Russians are the world leaders in liquid rocket engine design and anyone who thinks otherwise are deluding themselves.
SpaceX is doing a nice job so far but their engines are still not state of the art.
AFAIK the US controls most of the electrical power supply panels and the Russians do orbital reboosts and have most of the toilets. So it cannot run 100% without both.
No man. The DoD wanted Shuttle to be a lot larger so they could launch big reconnaissance satellites with it. The USAF also wanted the ability to do polar launches from Vandenberg plus a lot of cross-range capability so it could fly back to where it launched from. Both those features made the Shuttle immensely expensive and bloated.
The original Shuttle proposals by Max Faget were supposed to launch only astronauts not humongous cargo.
You do not know what you are talking about. They recently developed the RD-191 and RD-0124 staged combustion engines. They are developing the Angara rocket to replace Proton. Russia is one of the largest launch services providers in the world.
The largest problem they have had by far has been funding. The main reason for the delays in Angara has been lack of funding and lack of a launch pad because they have had no funding to build one. The first stage of Angara was launched rather successfully with the South Korea Naro rocket (the part of Naro that failed was the South Korean 2nd stage the Russian 1st stage worked perfect).
Last time I traveled to the US I left my luggage unlocked but the lovely people at the TSA - hi folks - still had to break them open by force probably for 'inspecting' my aftershave.
They have been working on it. Besides large hydroelectric projects like the Three Gorges Dam they are currently doing a massive ramp up of nuclear power plants in the large coastal cities. Then there is the natural gas deal they signed recently with Russia and prior deals they made with Turkmenistan.
I expect air pollution in the major coastal cities to be a lot better in a decade. The rest of the country will probably continue burning low grade coal though.
You still needed two people to physically turn a key on site. The password was just something they added to fulfill some political mandate that wanted the weapon release control in the hands of politicians rather than the military.
Gandhi made salt on a beach with his own hands as a form of insubordination against the salt tax in India and encouraged other to do the same remember?
Nah man. This is BS. If you compare the amount of females in the IT pool to begin with its hardly surprising to find a similar ratio in the actually hired staff of any company.
Nah man. For one the Space Shuttle was planned to be retired back when W was still President. It was deemed necessary to retire it to save money for the abortive uber expensive Ares rocket that NASA Administrator Mike Griffin was pushing. When Obama got into power most of the Shuttle maintenance facilities had already been closed down like the rocket engine manufacturing and refurbishing plant. Little he could do but cancel it as scheduled at that point. The plan was always to rely on Soyuz launches until an alternative vehicle could be developed.
There is broad bi-partisan support for the SLS rocket (Ares Strikes Back) in the Senate against Obama's wishes and those people in the Senate are those opposing his space policy. Which was to privatize the ISS launch services and rethink how to do Moon and Mars exploration in an economically sustainable way.
The Senate basically cut the funding for the Commercial Crew program. Setting back for like 2 years a US crew transportation vehicle to the ISS and sploshed it all down on SLS
You do not know rocket history very well. e.g. Von Braun started working at a rocket club in Germany with Oberth where they did a rocket used for a publicity stunt to promote the 'Frau im Mond' movie by Fritz Lang. Some people there had the business idea of using rockets to carry mail quickly point to point. Once WWII started their efforts were redirected to military applications. Eventually the technology got severely restricted and yes people like Lutz Kayzer, who wanted to make commercial rockets, failed due to regulatory barriers that prevented private corporations from launching rockets into space.
Had WWII and the Cold War never happened we might have had a commercial space launch industry a lot sooner.
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You call replacing a gas generator engine (RD-0110) with a staged combustion engine (RD-0124) with over twice the chamber pressure an 'upgrade'? You don't know WTF you are talking about. The engine is completely new with no relation other than that it is used as a drop in replacement with compatible interfaces.
The RD-191 to a lot of people maybe be just an RD-170 with a quarter of the combustion chambers but things are a lot more complicated than that. Plus I only gave those two engines as examples. There are more.
Pump fed engines, Kestrel and Draco, are trivial to design in comparison. The Russians also designed some of those much later than what you mention such as the S5.98M engine used in the Briz-M upper stage used in Proton. They also designed a LOX/LH2 expander cycle engine called the RD-0146. No man. The Russians are the world leaders in liquid rocket engine design and anyone who thinks otherwise are deluding themselves.
SpaceX is doing a nice job so far but their engines are still not state of the art.
AFAIK the US controls most of the electrical power supply panels and the Russians do orbital reboosts and have most of the toilets. So it cannot run 100% without both.
No man. The DoD wanted Shuttle to be a lot larger so they could launch big reconnaissance satellites with it. The USAF also wanted the ability to do polar launches from Vandenberg plus a lot of cross-range capability so it could fly back to where it launched from. Both those features made the Shuttle immensely expensive and bloated.
The original Shuttle proposals by Max Faget were supposed to launch only astronauts not humongous cargo.
The X-37? It has been launched into orbit by Lockheed Martin Atlas V rockets that use Russian RD-180 engines.
Don't joke man. The SLS is a white elephant which will probably never fly in the final configuration.
If you said SpaceX Falcon 9 or Boeing Delta IV Heavy I wouldn't laugh.
You do not know what you are talking about. They recently developed the RD-191 and RD-0124 staged combustion engines. They are developing the Angara rocket to replace Proton. Russia is one of the largest launch services providers in the world.
The largest problem they have had by far has been funding. The main reason for the delays in Angara has been lack of funding and lack of a launch pad because they have had no funding to build one. The first stage of Angara was launched rather successfully with the South Korea Naro rocket (the part of Naro that failed was the South Korean 2nd stage the Russian 1st stage worked perfect).
Last time I traveled to the US I left my luggage unlocked but the lovely people at the TSA - hi folks - still had to break them open by force probably for 'inspecting' my aftershave.
Yeah but Watch Dogs has nothing to do with real life hacking either.
They have been working on it. Besides large hydroelectric projects like the Three Gorges Dam they are currently doing a massive ramp up of nuclear power plants in the large coastal cities. Then there is the natural gas deal they signed recently with Russia and prior deals they made with Turkmenistan.
I expect air pollution in the major coastal cities to be a lot better in a decade. The rest of the country will probably continue burning low grade coal though.
Not a big Monty Python fan I guess.
Uplink: Hacker Elite was kewl.
Yes fiction. Just like 20000 Leagues Under The Sea or From the Earth to the Moon.
All of these were extrapolations into the future based on known science facts at the time.
Lets not even get into 1984.
F-35 has crap combat range and Canada has a large airspace to cover. That seems like a pretty good reason to me.
But they would have to give back some spectrum which would go back for sale to someone else.
You still needed two people to physically turn a key on site. The password was just something they added to fulfill some political mandate that wanted the weapon release control in the hands of politicians rather than the military.
Apple seems to have reinvented Pascal looking at typed variable declarations.
They are working on getting more of it like the so called 'Republic of Donetsk'.
Gandhi made salt on a beach with his own hands as a form of insubordination against the salt tax in India and encouraged other to do the same remember?
RD-171 has similar performance to the F-1 engine and is still used in Zenit. RD-180 is an RD-170 engine cut in half basically.
look at the 20th century;s worst...all white men
Yes Uganda was full of white people.
Nah man. This is BS. If you compare the amount of females in the IT pool to begin with its hardly surprising to find a similar ratio in the actually hired staff of any company.
Thank God someone does not do this politically correct BULLSHIT.
I still remember when Mankind was used as a word.
Nah man. For one the Space Shuttle was planned to be retired back when W was still President. It was deemed necessary to retire it to save money for the abortive uber expensive Ares rocket that NASA Administrator Mike Griffin was pushing. When Obama got into power most of the Shuttle maintenance facilities had already been closed down like the rocket engine manufacturing and refurbishing plant. Little he could do but cancel it as scheduled at that point. The plan was always to rely on Soyuz launches until an alternative vehicle could be developed.
There is broad bi-partisan support for the SLS rocket (Ares Strikes Back) in the Senate against Obama's wishes and those people in the Senate are those opposing his space policy. Which was to privatize the ISS launch services and rethink how to do Moon and Mars exploration in an economically sustainable way.
The Senate basically cut the funding for the Commercial Crew program. Setting back for like 2 years a US crew transportation vehicle to the ISS and sploshed it all down on SLS
You do not know rocket history very well. e.g. Von Braun started working at a rocket club in Germany with Oberth where they did a rocket used for a publicity stunt to promote the 'Frau im Mond' movie by Fritz Lang. Some people there had the business idea of using rockets to carry mail quickly point to point. Once WWII started their efforts were redirected to military applications. Eventually the technology got severely restricted and yes people like Lutz Kayzer, who wanted to make commercial rockets, failed due to regulatory barriers that prevented private corporations from launching rockets into space.
Had WWII and the Cold War never happened we might have had a commercial space launch industry a lot sooner.
I guess you are one of those dumb people who validate information by who's providing it rather than the actual information itself.