How much would it cost to build a model rocket that has no purpose other than to break past earth's atmosphere into outerspace, and just keep on going?
- posted
20 years ago
How much would it cost to build a model rocket that has no purpose other than to break past earth's atmosphere into outerspace, and just keep on going?
A ton of money and one fast rocket with a stage that can burn outside the atmosphere. Once outside the atmosphere of Earth you would need a boost to get you out of orbit and the gravity field.
Saturn V is a good example of an Earth orbit breaking rocket, as well as the Delta (?) rockets carrying space bound stuff.
If I recall, to break out of earth's gravity field an object needs to be traveling at 6000 mph? I don't think you will see a model rocket break orbit and head out to space in the near future.
But what do I know, I could be wrong. Stranger things have happened. :-)
KMJK
What definition of "model rocket" fits what you describe?
Steven P. McNicoll asked:
Steven,
I agree anyone would be hard pressed to get anything into space on 125g of propellant. I think the definition he was using was: non-professional rocket.
Doug
You could do it with a 50% mass fraction rocket...
and a fuel with a specific impulse of 11300 s....
and no atmosphere.
- Robert ;-)
Doug Sams wrote:
FYI - correction It's aprox 17,000 mph to MAINTAIN an earth orbit and escape velocity is aprox 25,000 mph.
- Scott (search engine) Sager
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Ya know, my wife might have some of that in the laundry room :)
Doug
Thanks Scott. I was a bit off.
KMJK=Not enough time to search engine it. :-(
"Karl Martin Joseph Kowert" wrote in news: snipped-for-privacy@corp.supernews.com:
All rockets can "burn outside the atmosphere". Propellant = fuel + oxidizer. No atmosphere necessary.
Escape veolcity for the Earth is in excess of 25000 mph.
I think it's been done for a couple dollars. At least to LEO :-)
Bob Kaplow NAR # 18L TRA # "Impeach the TRA BoD" >>> To reply, remove the TRABoD!
Cost me over $30 last weekend. I definitely left earth atomsphere, I achieved weightlessness, things got dark, re entry must have been rough. My head was pounding he next morning like I'd gotten beaten up, and I have no idea where I parked my rocket. ;-)
Chuck
Chuck Rudy
VooDoo Digital Productions
Karl Martin Joseph Kowert wrote: > Only 30 BUCKS?? That don't get you far. Light-weight! :-) >
Mmm. 30 bucks is almost 2 litres of real 'Turkey. That'd get you close to geostationary when your landing gear retracts automatically. Guess you might see Pluto on that trip (and probably Donald, Huey, Dewey & Louie too), and if you've got enough propellant in yer tank, it's a fair bet you'd make a low pass as well ;-). Sure you'll need some extra for life-support equipment (chips, candy bars, bail etc.). Perhaps the mission'd be called the Bars Crawler?
G. UKRA #1264 L2
Ah yes, good ol' Huey, Duey, an Louie. Miss them card shark robots, the cheats! :-) Classic in time.
-- KMJK
In article , "New Question" writes: How much would it cost to build a model rocket that has no purpose otherthan to break past earth's atmosphere into outerspace, and just keep ongoing? I think it's been done for a couple dollars. At least to LEO :-) Bob Kaplow NAR # 18L TRA # "Impeach the TRA BoD" Cost me over $30 last weekend. I definitely left earth atomsphere, I achieved weightlessness, things got dark, re entry must have been rough. My head was pounding he next morning like I'd gotten beaten up, and I have no idea where I parked my rocket. ;-)
Chuck
Boy, I'd be around alpha centuri if i tried a third of that amount. someof tend to spend most of our free vaulta on engines
Ahh Yes "Silent Running" a great film that was added to my DVD collection last year via Amazon.... A really great science fiction movie. Tha additional material included on the DVD regarding the making of the movie was also pretty cool.
Mark A Palmer TRA 08542....L3
Oh yeah sure - BUT - they won't go anywhere, since there's no air to push against.
Right?
;O)
(ducking.......)
I assume you left out the vehicle development cost in that estimate.
;-)
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Mark B. Bundick mbundick - at - earthlink - dot - net NAR President www - dot - nar - dot - org
But if you clean your casing as soon as possible after ejection and descent, you can somewhat minimize the risks.
I forgot Jerry, did you run for the position?
what development? NASA has a half dozen capable vehicles, fully tested waiting for the industry or any individual taxpayer to use.
odd to believe that the redstone had no fatalities, or the Thor, or the Titan. but we are still using the Shuttle. ok, NASA is using the shuttle, others are working on other designs.
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