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SpaceShipTwo Flies Again

timothy posted about 3 months ago | from the up-in-the-air dept.

Transportation 22

schwit1 writes "The competition heats up: For the first time in six months SpaceShipTwo completed a test flight [Tuesday]." The article linked is from NBC, which also has a deal with Virgin Galactic to televise the first commercial flight. It is thus in their interest to promote the spacecraft and company. The following two sentences from the article however clearly confirm every rumor we have heard about the ship in the past year, that they needed to replace or completely refit the engine and that the resulting thrust might not be enough to get the ship to 100 kilometers or 62 miles: "In January, SpaceShipTwo blasted off for a powered test and sailed through a follow-up glide flight, but then it went into the shop for rocket refitting. It's expected to go through a series of glide flights and powered flights that eventually rise beyond the boundary of outer space (50 miles or 100 kilometers in altitude, depending on who's counting)." Hopefully this test flight indicates that they have installed the new engine and are now beginning flight tests with equipment that will actually get the ship into space.

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Oh so close... (1)

Anonymous Coward | about 3 months ago | (#47571439)

Oh so close to something truly cool--the 1 hour to Tokyo flight. Yeah, you'd have to be insanely rich to buy a ticket; but you already have to be insanely rich just to get into suborbital space on this thing. Don't get me wrong. The guys who put this together are fantastic. It's just that it seems like a little more effort could get you something so much more fantastic.

Re:Oh so close... (2)

wagnerrp (1305589) | about 3 months ago | (#47573287)

The difference between something able to reach 100km, and something able to reach that altitude with enough energy to make it a quarter of the way around the world, is significant. They are really not close at all to being a useful transportation mechanism.

What Competition? (0)

Anonymous Coward | about 3 months ago | (#47571465)

How many other companies are making air-dropped sub-orbital spacecraft to help wealthy tourists stroke their egos?

Re:What Competition? (2)

gl4ss (559668) | about 3 months ago | (#47571733)

there's a bunch. none of them are flying yet.

of course, you could always buy a soyuz trip to more into space.

Worthless link (0)

Anonymous Coward | about 3 months ago | (#47571479)

Next time, please direct people to a site where the web developers know what they are doing and can display basic text and images without the need for a JavaScript security hole. Thank you.

It needs a new motor now! (0)

Anonymous Coward | about 3 months ago | (#47571593)

It needs a new motor now. This one has been on deck and ready for many years!

http://v-serv.com/usr/crr457mm.htm

http://v-serv.com/usr/motors/images/18in/e03Firing010-2.jpg

It's time to really do this thing after all other options have been exhausted.

JJ

Glide test? (3, Insightful)

Ecuador (740021) | about 3 months ago | (#47571605)

According to the linked article this was a glide test, not even a powered one. Given the fact that SpaceShipTwo (a bit of a hyperbolic name - RocketPlane would be more accurate) has flown dozens of times, some of those powered, I don't get the "news" aspect exactly. Is it that they had stopped for a few months and it is "news" that they resumed? Still how does that translate to "competition heats up"? And when we say "competition", which other recreational high altitude planes are we talking about and how are they doing?

Re:Glide test? (2, Informative)

Anonymous Coward | about 3 months ago | (#47574761)

The tests uncovered the fact that their initial motor design was a dud. Vibrations, instabilities... it would have torn the whole thing apart had they burned it full duration.

So they had to make a completely new engine. This is the first glide test with the modified SS2.

Dirty Burn (0)

Anonymous Coward | about 3 months ago | (#47571787)

When watching the previous test I noted a "dirty burn" to many.

This is a "flag" that says ... the test was successful but it was only by dumb luck.

The engineers did the right thing afterward.

Cheers.

Re:Dirty Burn (1)

MichaelSmith (789609) | about 3 months ago | (#47572351)

Isn't that because it is burning rubber? All the burns with that engine type are dirty.

Well, duh! (1)

Anonymous Coward | about 3 months ago | (#47571809)

It's a solid rocket motor, of course it needs to be replaced after every flight.

Re:Well, duh! (1)

Enigma2175 (179646) | about 3 months ago | (#47574295)

It's a solid rocket motor, of course it needs to be replaced after every flight.

Actually, it is a hybrid rocket motor [wikipedia.org] which has characteristics of both a solid and liquid motor. Wiki says they are changing the propellant [wikipedia.org] which would explain the motor replacement.

Look out, upper atmosphere! (0)

Anonymous Coward | about 3 months ago | (#47571833)

Bored middle-aged elites will be burping, farting and vomiting for five minutes at 100,000 feet soon!!!!

Re:Look out, upper atmosphere! (0)

Anonymous Coward | about 3 months ago | (#47577083)

100,000 feet != 100 km

Sounds like (3, Funny)

rossdee (243626) | about 3 months ago | (#47571839)

a sequel to a bad movie

Metric conversion problems (0)

Kittenman (971447) | about 3 months ago | (#47571935)

Notice how in one part of the summary, 100km is 62 miles. Then later it becomes 50 miles. Is this Lorentz-Fitzgerald contraction at work? If the summary had meandered on, would the ratio increase further?

Odd how L-F contraction only affects imperial measurements. Maybe Haldane was right, and the universe is indeed queerer than we can imagine.

Re:Metric conversion problems (3, Informative)

Seraphim1982 (813899) | about 3 months ago | (#47572075)

No I didn't.

I did notice one part of the summary where they converted 100 km to 62 miles, and another where they noted that different groups define the edge of space differently, with some using 100 km as the boundary and others using 50 miles. However, at no point did I note someone trying to equate 100 km to 50 miles. Can you point it out for me?

Re:Metric conversion problems (1)

Bomazi (1875554) | about 3 months ago | (#47572969)

The U.S. defines the edge of space as 50 miles (80 km), the rest of the world as 100 km. The discrepancy comes from the fact that it is a somewhat arbitrary boundary so both chose a round number in their respective measurement system. The two values are however reasonably close. For details: https://en.wikipedia.org/wiki/... [wikipedia.org] .

Re:Metric conversion problems (1)

chopper749 (574759) | about 3 months ago | (#47574993)

If 80% is close.

modulates.com (-1)

Anonymous Coward | about 3 months ago | (#47572883)

Video commerce has so much potential, i joined modulates a few months ago to start tracking my campaigns.

Competition? (0)

Anonymous Coward | about 3 months ago | (#47573297)

I didn't realize Virgin Galactic was sending missions to the ISS already.

three years late with commerical launch (1)

peter303 (12292) | about 3 months ago | (#47574429)

I was expecting public subortial launches in 2011. Almost as slow as NASA which is likely to slip seven years behind in a shuttle replacement.
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