Ask 'Rocket Guy' Brian Walker 272
We've mentioned amateur rocket enthusiast Brian Walker (better known as Rocket Guy) a few times before; he's one of those people who aren't content with building Estes model rockets that carry eggs or tiny cameras. Instead, Rocket Guy is building a backyard rocket -- and he hopes to launch himself about 35 miles into the air. His launch, originally planned to take place sometime this year, has been delayed for the best of reasons, but now's your chance to ask about the theory and practice of home-brewed rocket travel. We'll pass the best questions along to Rocket Guy, and post his answers soon.
Legal issues? (Score:5, Interesting)
Re:Legal issues? (Score:3, Interesting)
Re:Legal issues? (Score:2)
Yes, a permit is needed for that altitude. Of course, if you can get a trebuchet to launch a projectile high enough for it to need a permit, can I grovel before you?
From wildhobbies [wildhobbies.com]
Re:Legal issues? (Score:3, Insightful)
Eastern Oregon is a desolate desert area that makes Nevada look like Manhattan. It is so desolate that the nearest town is Frenchglen, 35 air miles away with a population of 25. The nearest town of over 500 is Burns, which is over 100 miles away. The rocket isn't going near any populated area. The FAA shouldn't worry.
Re:Legal issues? (Score:2)
The rain shadow of the cascades reduces rainfall in the eastern oregon area to about 5 inches. Steens mountain sucks even more moisture out, reducing it to 3. The alvord desert has too little vegetation to start a fire.
BTW, the craters of idaho has towns nearby.
Re:Legal issues? (Score:3, Insightful)
You might not realize it from reading Slashdot but not all government regulations are a BAD thing.
Yes the DMCA sucks, but so does having your plane crash because some "rocket man" happened to launch a small missile into the flight-path of one of its engine intakes at the wrong time.
Re:Legal issues? (Score:2)
The chances of that happening are very infestimal. Airspace is a big area. He will be crossing the 25-40 thousand foot range of commercial flights for probably less than a minute. He is launching in a remote part of Eastern Oregon where jets don't even cross. So anyway, let's say a jet crosses somewhere in the Alvord Desert every hour (an overestimate). The Alvord Desert is about a 30 by 15 mile salt flat area between a huge desert mountain and another desert area. So anyway, the total area is about 450 square miles. A jet would cross it in less than two minutes. A jet takes up a volume of air say 150 x 150 x 30. That is 675 thousand ft 3. The total volume of air from the 25-40 thousand foot level over the Alvord desert is 188 trillion cubic feet. At any point in time, the jet is taking up 1 279 billionth of the airspace in the Alvord Desert.
The chances of the rocket hitting a passing jet are one in over 100 trillion. The chances of it hitting a habitated area are one in infinity, because there are no habitated areas anywhere in the rocket's range.
Re:Legal issues? (Score:2)
Re:Legal issues? (Score:2)
Granted, there are a few considerations that make this a more likely thing to happen then a rocket and airplane mid-air, but still, with all the flight safety measures that are in place, the chance would also be very very small.
Now go to CNN [cnn.com].
I do agree that the chances of his rocket hitting anything flying are very small, but if it happens the result would be a disaster. The regulations are there to make it even less likely to happen. In our country there are not very many restrictions on ultralight flying, and as a result a couple of months ago a Belgian F-16 crashed after a mid-air collision with an ultralight, killing two of the three pilots involved.
Re:Legal issues? (Score:2)
In practise it doesn't work for various reasons. One of the main ones is that airspace is regulated into sections at certain areas and heights, and some of these areas are out of bounds to casual flyers. So in Britain, there's a few areas just outside restricted airspace sections (eg. Manchester airport) where it's SERIOUSLY crowded, not bcos there's lots of stuff coming and going from the airport, but bcos anyone flying past there has to detour round the airport, and no-one wants to go too far so they all skirt round in the same place. It's even more so for non-casual flights (eg. 747s) which are restricted to certain airlanes.
It's the same argument as saying: "The area of the US is this much. There's X million cars in the US, with an average area each of this much. Therefore the probability of an accident is this much." It doesn't take into account that most of those cars are driving on roads and therefore massively increase the density on the roads. Flying works in exactly the same way, except we have roads with height as well as width.
And then your calculation does assume that he's launching from a sensible place, ie. the middle of nowhere. If there were no rules, there'd be nothing stopping him launching from downtown New York, which would be a Bad Thing...
Grab.
Sept 11th? (Score:2)
Had to be asked... (Score:5, Funny)
Re:Had to be asked... (Score:3, Funny)
Re:Had to be asked... (Score:3, Funny)
Contingency Plan (Score:4, Interesting)
Re:Contingency Plan (Score:3, Funny)
Wait a second, this thing's powered by a FAN?
Boy are you fucked!
Re:Contingency Plan (Score:1)
Re:Contingency Plan (Score:2)
If he has to bail at 35miles (180,000 ft.) he'll shatter the record for highest parachute jump (102,000 ft.). But really, there shouldn't be much difference between 180,000 and 102,000 ft except for a few more minutes of free fall. It goes without saying that he's going to need to bring oxygen with him, and god-knows-what kind of protective clothing.
What can we do to HELP?!?! (Score:2, Interesting)
future of private industry space travel (Score:5, Interesting)
What do you think this will do to the future of space travel? Do you think this will set a precedent for the private industry to get involved in space travel?
Your best chance.. (Score:2)
Now is definitely your chance, seeing as how once this launch is complete your odds of being able to ask him something are markedly decreased
New Level (Score:1, Funny)
Darwin Awards (Score:1)
Gs (Score:1)
Difficulty (Score:3, Insightful)
When someone says "Doing XYZ isn't rocket science" have you ever said "no, it's [harder|easier]"?
Assuming:
a) building rockets IS rocket science
b) rocket science IS difficult
c) difficult things take up a lot of mental space...
Do you have a compulsion to watch Wapner?
Re:Difficulty (Score:1)
i.e. like adding that third, fourth, and fifth spoiler on your Camaro.
I'm sure this guy will concur.
Re:Difficulty (Score:3, Funny)
I have always wondered: What if I were a brain surgon that was a (model) rocket hobbiest (perhaps mixing my own chemicals) and I knew Greek fluently? How would I express a difficult task then?
What I want to know... (Score:2)
Re:What I want to know... (Score:2)
Insurance guy: "Age?"
Rocket Guy: "41."
"Do you smoke?"
"Nope"
"Any major health problems, or diseases in your family?"
"Nope"
"Do you build and fly manned homemade rockets?"
"Yes."
"Ohhh. Thats gonna cost ya."
War on Terror Impact (Score:3, Interesting)
Re:War on Terror Impact (Score:3, Funny)
I don't think 'impacted' is a good choice of words before launch.
authorities (Score:3, Interesting)
Which would be more appropriate... (Score:1)
Rides? (Score:3, Interesting)
tcd004
The landing? (Score:1)
Have you cleared this with the neighbours, so they know to put the pool cover on that day in case you end up in their back yard?
IFR (Score:1)
slashdotted (Score:1)
http://216.239.37.100/search?q=cache:BCOQM5Ncse
FAA, Red Tape, etc. (Score:4, Interesting)
It seems that some of the biggests problems would be an inadequate supply of red tape [octanecreative.com]
;)
Friends (Score:2, Interesting)
Best of reasons? (Score:1)
He came to his senses?
Re:Best of reasons? (Score:2)
Hurry (Score:5, Funny)
Please perform this interview before his planned flight.
Thank You,
-Pete
My Question (Score:2, Troll)
Re:My Question (Score:2)
More to the point, what types of mind-alering substances are you taking, in what dosages, and which delivery methods do you use? Where can we get some?
Seriously, there is a time and a place for taking risks in the name of science (e.g. Marie Curie, who could probably not fully appreciate the inherent risks of working with Radium), and then there is someone setting themselves in front of good ol' Uncle Chuck (Darwin) with a big KICK ME sign on their ass.
PS - Good luck up there. Say hi to my friend Mr. Applewhite.
Hydrogen Peroxide Fuel (Score:1)
Your missing the point (Score:1)
Rocket Industry Efficiency (Score:5, Interesting)
Which parts or subsystems do you think are candidates for standardization in the coming personal rocket industry?
Engine Work? (Score:5, Interesting)
Having seen all the trouble with catalyst packs and such that other projects have had, how come you havn't done any test firings yet?
Have you even tested your pneumatic launcher?
Do the chicks go for it? (Score:3, Funny)
2 questions [sorry] (Score:1)
Simple question... (Score:3, Interesting)
Re:Simple question... (Score:1)
Inspired by Larry Walters? (Score:4, Interesting)
This story is, of course, very reminiscent of the famous Darwin Award winner Larry Walters [everything2.com], who soared at 16,000 ft. on a lawn chair fitted with dozens of weather balloons. Walters is also quoted as saying "Since I was 13 years old, I've dreamed of going up into the clear blue sky in a weather balloon."
Mr. Walker, in what was has Larry Walters' flight been an inspiration (or warning!) to you?
Re:Inspired by Larry Walters? (Score:2)
Larry Walters didn't win a Darwin Award. You can only win a Darwin if you remove yourself from the gene pool (i.e. kill yourself or destroy your ability to reproduce). He did, however, recieve an honorable mention [darwinawards.com].
Re:Inspired by Larry Walters? (Score:3, Funny)
Usted es un pequeño hombre divertido. Pero no demando que mi pene es el diablo, sólo ése el diablo está en mis pantalones.
Re:Inspired by Larry Walters? (Score:3, Funny)
The devil is in my trousers! Watch, watches! I cannot. I do not have my magnifying glass.
You are a small amused man. But I do not demand that my penis is the devil, only that one the devil is in my trousers.
Good. It is right. But obvious there is enough field in its trousers
Re:Inspired by Larry Walters? (Score:2)
Esto es verdad. Uso los pantalones muy grandes, pero necesito más sitio en la entrepierna.
so... (Score:2)
Do you... (Score:1)
Which is more exciting? (Score:1)
To quote from the movie "Hudson Hawk"... (Score:2)
So... (Score:1)
Mike.
where do you plan to land (Score:1)
or, can the debris hurt someone?
Do you have a will? (Score:1, Interesting)
Server, server, where for art thou server (Score:2, Funny)
You: Ummm, was it was a rocket crashing into the ground at unbelievable speed.
Me: No, I think it was just the sound of a server performing its own crash and burnafter 4 minutes and 30 seconds of slashdot effect.
You: I hope this isn't a sign of things to come...
Fundraising and manpower (Score:3, Interesting)
How are you raising funds for this adventure?
How much time each day do you devote to rocket and launchpad design/construction?
Do you have a staff?
What are you doing for ground control?
Are the rocket designs GPL'd?
What would a Beowolf-cluster of rockets look like?
Insurance problems? (Score:2)
Public Spaceports? (Score:4, Interesting)
If the popularity of private rocket launches increases significantly following your project, do you think there is a chance that a public "Spaceport" could be constructed to allow private entities to launch their own devices safely?
Cost (Score:4, Interesting)
Insurance !?!?!?! (Score:2)
So, sir. What kind of insurance did you have in mind?
Do you have an amateur rocketeer package? I need coverage for fuel tank explosion, fiery re-entry, parachute failure, oxygen leakage, missile-defense laser damage, and front-and-rear collision.
Server (Score:2)
How does it feel to be able to legally bring down most servers on the net at will?
-Sean
What's Next. (Score:5, Interesting)
women (Score:2)
Funding vs technology (Score:5, Interesting)
Any second thoughts? (Score:4, Interesting)
Has your perspective now changed; do you worry of something going wrong, and have you considered backing out?
What about John Carmack's project? (Score:5, Interesting)
Cowboy hat? (Score:5, Funny)
Re:Cowboy hat? (Score:2)
advise on future projects (Score:2)
* russian space suit need modification in the crouch dept;
* FAA apply-for-license bribe line phone number
* titanium is best bought from these countries
* books to read
* what to do when mixing dangerous chemicals
* how much $$ would it cost, what did you do wrong and how that could have saved you a couple million
* spelling errors can be deadly when you are a rocket-scientist
etc
Blocking the trolls... (Score:1)
Insurance? (Score:2, Interesting)
Seriously. (Score:2)
As the first amateur in space... (Score:3, Interesting)
I have respect for someone who goes into this knowing they might end up not coming back alive, but realizes that it must be done to further innovation. Good luck to you.
Re:As the first amateur in space... (Score:2)
In answer to your first question: "HOLYSH!T I MADE IT! YAY! I CAN'T BELIEVE IT WORKED!", or, "My Blue Cross number? Sure, it's 398-88293-59. Yeah, better pack that in ice, they might be able to reattach it..."
In answer to your second: The rest of me, I hope.
In answer to your third: The rest of me, I hope.
Insurance at a premium (Score:2)
God speed, Astro Chicken ^__^
What will be in the tape deck? (Score:4, Interesting)
or
Steppenwolf: Born to be wild? [steppenwolf.com]
~Sean
Re:What will be in the tape deck? (Score:2)
operational testing? (Score:5, Interesting)
Armadillo Aerospace (Score:2)
Commercialization. (Score:2)
Exotic Fuels (Score:5, Interesting)
Re:Exotic Fuels (Score:5, Informative)
For reference, while the theoretical Isp is usually listed around 155, we typically only see 115 or so at sea level with less than 300 psi chamber pressure.
> hybrid (ie, plastic/nitrous oxide) propellants?
Peroxide makes a pretty good hybrid oxidizer, with better Isp and density-Isp than nitrous based hybrids, plus it auto-ignites after decomposition. Vec Isp may be as high as 275 with 90% peroxide, but sea level will be down around 200-225, depending on chamber pressures. We fired a couple peroxide / polyethylene hybrid grains last year, but we haven't pursued it much.
There is a very tantalizing possibility of using aluminum hydride as a hybrid graid with peroxide, giving a theoretical vacuum Isp of over 400 (!!!), and it is non-toxic. We are probably going to look into this one of these days.
> buckyballs
Not much use. Buckytube composites may make for very mass efficient tanks and structures in the not too distant future.
> multi-atomic nitrogen
If it can ever be produced affordably, a 600 Isp monoprop would sure be nice. Easy to go boom, though.
> fluorine
Ick. Very toxic, very corrosive. Flourine / lithium hybrids can get over 500 Isp, but it would be very dangerous.
I feel that the best way to take advantage of exotic developments is to build a fully functional vehicle with conventional materials, so if a wonder material / propellent does materialize, you are well poised to take advantage of it.
John Carmack
Publicity? (Score:2, Interesting)
Will you attempt to attract live television footage of your launch?
What kind of records/recordings (audio, video, medical, etc) will you make to document your launch/flight/re-entry?
Slashdot Poll: Non Returnable Rocket Payload ? (Score:2, Funny)
Some questions (Score:2, Interesting)
35 miles up could send you quite a distance ballistically, and the rocket fuel could cause some significant damage if you crashed. Have you needed to get any special clearances in order to launch? Or will the rocket be moved to a safer location for launch?
A lot of rockets blew up on the launch pad in the early days. Have you done anything special to ensure nothing like that will happen to you and your rocket?
A lot of rockets had a smaller "escape" rocket attched to the nose of tha capsule to lift it free of the main engines and fuel in an emergency. I don't see anything like that in your design. What provisions have you made for getting you away and to safety if the main stage fails before you are at safe parachute height?
Question about G-Forces? (Score:2, Interesting)
Re-entry Testing (Score:2, Interesting)
-c.
Ground control to Major Tom (Score:2)
Best of luck, but unlike Major Tom, please don't decide to stay. Come back down to tell us about it. (or at least construct yourself a rugged blackbox recorder!)
Public Safety Analysis? (Score:2)
Forgetting for a moment the risk to your own life, what sort of safety analysis have you done to ensure that you don't hurt or kill spectators or the public in the neighborhood of your launch site, damage property, start fires, etc.?
Re:Live Payload (Score:1)
I know one at