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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."
Link to their website. :) More Q&A about XCOR suborbital stuff on our site: here.
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.
Erlang Developer and podcaster
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
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
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