Ion thruster sets world record....
- Thread starter Beefbisquit
- Start date
slowandsteady
Well-Known Member
Warp seven Mr. Scott
HeadieNugz
Active Member
-__- Parsec is a measure of LENGTH.
B166ER420
Well-Known Member
Not a STAR WARS fan?...huh??
.....but your right.A parsec is used by astronomers to measure extreme distanes between stars and galaxies.A distance equal to 3.258 light years or 30.9 trillion kilometers.
I have a black belt in google-fu!
bamabudblazer
Member
I wish I could go.
slowandsteady
Well-Known Member
Was wondering where they got this !! LOL
heckler73
Well-Known Member
operated for over 43,000 hours ... 770 kilograms of xenon propellant and can provide 30 million-newton-seconds of total impulse
30E6 N*s = kg*m*s^-2*s = kg*m/s = m*v = p (hmmm... that can't be right)
43E3 hrs * 3600 s/hr = 154.8E6 s
sooo 193.8 mN of thrust?
I might have that calc completely wrong, but whatever they strap that onto needs a kick-start...
In fact, I think I do have that wrong... I'm not factoring in the change in mass...
http://descanso.jpl.nasa.gov/SciTechBook/series1/Goebel__cmprsd_opt.pdf
From chap. 2.4
Isp = T*(dm/dt*g)^-1
But for Xenon Thrusters it is a different equation... Otherwise, that would be a HUGE amount of thrust...
This is very interesting. Specific Impulse for any thruster is
Isp = V[SUB]ex [/SUB]/ g
which gives units of seconds.
weird... dm[SUB]i[/SUB]/dt / dm[SUB]p[/SUB]/dt is tacked on there...
http://exploration.grc.nasa.gov/education/rocket/specimp.html
NASA FTW!
Can you tell NASA is on a tight budget?
Those are some pretty snazzy graphics! Looks just like the rocket I'm building out of toilet-paper tubes and matchsticks!
And why is the nose crooked?
30E6 N*s = kg*m*s^-2*s = kg*m/s = m*v = p (hmmm... that can't be right)
43E3 hrs * 3600 s/hr = 154.8E6 s
sooo 193.8 mN of thrust?
I might have that calc completely wrong, but whatever they strap that onto needs a kick-start...
In fact, I think I do have that wrong... I'm not factoring in the change in mass...
http://descanso.jpl.nasa.gov/SciTechBook/series1/Goebel__cmprsd_opt.pdf
From chap. 2.4
Isp = T*(dm/dt*g)^-1
But for Xenon Thrusters it is a different equation... Otherwise, that would be a HUGE amount of thrust...
This is very interesting. Specific Impulse for any thruster is
Isp = V[SUB]ex [/SUB]/ g
which gives units of seconds.
weird... dm[SUB]i[/SUB]/dt / dm[SUB]p[/SUB]/dt is tacked on there...
http://exploration.grc.nasa.gov/education/rocket/specimp.html
NASA FTW!
Can you tell NASA is on a tight budget?
Those are some pretty snazzy graphics! Looks just like the rocket I'm building out of toilet-paper tubes and matchsticks!
And why is the nose crooked?
Commander Strax
Well-Known Member
almost better than a pulse jet motorcycle
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