XCOR Launch Application Complete

Kulic writes "SpaceDaily.com is reporting that XCOR, a competitor for the X-Prize has had their launch application deemed 'sufficiently complete' by the Federal Aviation Administration's Associate Administrator for Commercial Space Transportation. This significant regulatory milestone means that AST has committed itself either to issue a launch license to XCOR within 180 days or notify Congress that it failed to do so."

Comments

Re:Trip

[PhantomHarlock]

Well, we have a non-exclusive agreement with Space Adventures, the company that helped broker Dennis Tito and Mark Shuttleworth's rides in Russia. They are currently selling tickets for suborbital flights and I believe they currently have over 600 reservations, some paid in full and others are partial down payments.

Link to their website. :) More Q&A about XCOR suborbital stuff on our site: here.

Re:UFP==FAA?

[mcrbids]

are we setting a dangerous precedent here with regard to FAA authority? Do they have full authority of all known space farther than 6370km from Earth's core?

I don't think the FAA is trying to regulate outer space. If they were, then the recent Chinese mission would have had to be licensed by the FAA.

Fat chance.

But, you have to get from here to there, and if you are doing that in the atmospheric space that is immediately over the USA, you need to talk to the FAA.

Re:UFP==FAA?

[Zachary Kessin]

Also, all ships and aircraft are registered in a specific country. If this ship is owned by a US company it will I assume be flying with a US (N---) tail number. That puts the FAA into play. If they were say a Canadian company the Canadian CAA would have to certify it.

If you look at the pictures of Space Ship 1 you will see that it has a US tail number (N328KF). So it too has an (experimental) certification from the FAA.

Re:Early Stages

[PhantomHarlock]

Two things:

Yes, we are not an X-Prize contender. That part of the submission is incorrect. (it's the most common journalistic mistake, we forgive /.)

To clarify...when AST receives a launch license application it deems is "sufficiently complete" it just means that they are now on a 180 day clock to either deny or grant the license. If they deny the license, they have to report to congress and tell them why it was denied. Along the way, they may request from us (XCOR) any kind of new information they might need as well.

So yes, your comment is correct. The license is not granted, but the application is in the 'sufficiently complete' mode. The newsworthy significance of this is that it's the very first sufficiently complete application for a winged suborbital vehicle, of which he hope there will be many more of in the not too distant future. :) -m

From their faq page

[lingqi]

Does it make a lot of noise?
Yes. Our sound level meter goes off the scale of 138 dBA at 10 meters. However, during test flights people on the ground have noted that it is quieter than many jet aircraft they have heard.

oh... really? have these people on the ground checked their hearing after long-term exposure to whatever noise that's abusing their ears???

the BEST earmuffs do a -29dB cut, and that means even wearing that, the grount crew can expect over 109dB (since we don't know how much, it's off the scale right?) exposure...

even wearing earplugs AND a earmuff, you still are pushing ~ >79dB - and earplug + muff doesn't actually give you -60dB.

besides... the ratings are only at certain frequencies; some -29dB muffs are as ineffective as -16dB only for lower frequencies.

Re:From their faq page

[PhantomHarlock]

Yes, at 10 meters an EZ-Rocket engine test (the thing being referred to in your quote) almost requires headphones and earmuffs. And by golly if that's not the same sort of sound levels that come out of an F-4 phantom on full afterburners or a 747 taking off, except you're never that close to them. If you are you're insulated inside the plane.

When the EZ-Rocket is actually in flight, the noise from the ground isn't any different from a fighter jet. And inside the cockpit, our test pilot Dick Rutan says that the engine isn't any louder than a jet with the canopy closed and the earphones on.

The key thing to remember is that the engines that will go on the suborbital vehicle are larger and have much lower noise frequency components. The XR4K5 1800 lb-thrust engine has a low rumble well within the safety margins of just wearing headphones. It has a really beautiful sound when it runs. The 400 lb-thrust EZ-Rocket engine, which is the one that the sound levels refer to, sounds more like full spectrum white noise.

the loudest noise from a rocket engine can be heard when you are standing approximately 45 degrees from the thrust vector (45 from straight behind) and the quietest point is directly in front of it. (in the cockpit)

One of the many advantages of using liquid fuel engines is far less vibration and audable noise variation when compared to a solid fuel engine. Ever read about a NASA astronaut's experiences during the solid fuel burn on a shuttle launch? O.K. for heavy lifters but perhaps not for space tourists. :)

As a side note, I am always amazed at concertgoers for not wearing hearing protection for something that sounds almost as loud as a rocket engine.

--Mike

Re:From their faq page

[PhantomHarlock]

I believe our current eastimates for the EPA and various environmental impact reports are based on many different metering levels taken in different situations from varying distances, both from the test stand and on our flying rocket powered airplane, the EZ-Rocket.

Sound levels are indeed very important, not only for employee occupational hazard levels but for sound levels reaching out in to the town of Mojave and the rest of the airport. We like to be good neighbors. We also had to provide estimated sound levels as part of the Mojave Civilian Flight test Center's application to become the nation's first inland space port.

Fortunately, we're within restricted airspace near Edwards Air Force Base where you are allowed to go supersonic and make sonic booms, one of the few places in America where you can do this. The people who live here are used to the occasional BANG! BANG! in the morning as the boys and girls in the fighter jets paint circles into the skies overhead. The rocket taking off is nowhere near the level or type of sound generated by the sonic booms (good booms make your wall art crooked) and our own booms are minimalized on the ground by the fact that the aircraft is at a 70 degree climb angle.

We've been able to come up with a pretty accurate graph of noise falloff. Once we begin testing the next generation of engines on the next generation of flying vehicle we'll have an even better idea of what to expect for the full suborbital flight profile.

--Mike M., XCOR