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Laser propulsion system - is it possible to tack?

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Feb 23, 2020
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I am new to the field 8D,
but I imagine there are many resources on the net
usually the fuel is xenon
here are some leads-
Ion thruster - Wikipedia
Electrically powered spacecraft propulsion - Wikipedia
NASA - Ion Propulsion | NASA
Silent and Simple Ion Engine Powers a Plane with No Moving Parts - Scientific American

with lasers we can dramatically apply more wattage,
and burn fuel faster,
perhaps meaning more thrust

ion and plasma thrusters are very similar, I understand that plasma is the most recent

sorry no, I don't know power/weight ratios for these techs
I can understand Newtons and Watts though
 
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Catastrophe

Approaching asteroid? Is this THE one?
Feb 18, 2020
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"sorry no, I don't know power/weight ratios for these techs"

That was the point of my question. Can a method produce significantly more thrust than the power needed to move its own fuel/mechanism?

Cat :)
 
Feb 23, 2020
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"On the other hand, the entire ion propulsion in DS1 can produce 92 mN of force which is "roughly" equivalent to the pulling power of a large beetle, like a cockroach, and DS1 weighs 489.5 kg. This is much less than 1 lbf/lb!"

source:
Could ion propulsion work on Earth or does it work only in space? (northwestern.edu)

DS 1 craft further:
NASA - Deep Space 1 Ion Propulsion System Operation Sequence and Status

the xenon used for that mission was 72kg, we can assume the craft had around 77.5kg xenon tank
the 72kg provided 16,246 hours of thrust
 
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Feb 23, 2020
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viable regarding what objective Cat?

DS-1 mission objectives were all accomplished
many satellites use ion thrusters to maneuver

the thrust is:-
92 millinewtons (0.33 ozf) thrust at maximal power (2,100 W on DS1)
and the craft weighs 489.5 kg

edit- oh I see, in regards to this thread, to power such a unit with a laser
it's very low thrust, but it's the existing technology. I'll try and put the figures together for the time to Mars
cheers!

edit- at a speed that this machine is capable of 56,000 kmh,
it would take 189.6875 days to travel to Mars
254,940,000 km away
 
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  • Like
Reactions: Catastrophe

Catastrophe

Approaching asteroid? Is this THE one?
Feb 18, 2020
2,443
1,451
3,570
viable regarding what objective Cat?

DS-1 mission objectives were all accomplished
many satellites use ion thrusters to maneuver

the thrust is:-
92 millinewtons (0.33 ozf) thrust at maximal power (2,100 W on DS1)
and the craft weighs 489.5 kg

edit- oh I see, in regards to this thread, to power such a unit with a laser
it's very low thrust, but it's the existing technology. I'll try and put the figures together for the time to Mars
cheers!
Many thanks, Cat :)
 

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