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Results tagged with solar-sail
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user 103
Questions regarding a 'sail' that can be attached to spacecraft to harness the sun's radiation to propel a ship in one direction or another.
7
votes
Is it possible to launch a satellite into orbit with a solar sail and a weather balloon usin...
You need 1000km of altitude to break even between air drag and light pressure of sunlight. Below that the solar sail acts as a parachute, dragging against the remains of the atmosphere. You must reach …
- 56k
3
votes
Laser propulsion possible?
The others covered some essential points concerning use of remote beam sources as propulsion to solar sails. Let me add something else:
The solar sail is huge to gather a lot of relatively weak, scat …
- 56k
8
votes
Can you tack against the sun using a solar sail?
While you can't do tricks common for normal sails due to lack of water to keep your keel from drifting sideways and normally lets the ship travel upwind, you are still able to extract force diagonal t …
- 56k
1
vote
Accepted
Would the Poynting–Robertson effect ever be faster than a solar sail from a 1 AU orbit to th...
No. Let's take the "tacking against the Sun" scenario.
The optimal incidence angle for a 100% reflective solar sail to reduce orbital velocity around the Sun, is 45 degrees, all of the reflected inci …
- 56k