I designed a crewed interstellar spacecraft

General physics and astronomy discussions not directly related to Celestia
Topic author
alfa015
Posts: 10
Joined: 27.12.2019
With us: 9 months 2 days

I designed a crewed interstellar spacecraft

Post #1by alfa015 » 04.07.2020, 11:38

Hi everybody,

I would like to share with you a crewed interstellar spacecraft which I have designed and called Solar One.

It employs a combination of 3 propulsion methonds: nuclear fusion, beam-powered propulsion , and photon propulsion.

Basically, several compact fusion reactors power a laser system that propels a huge light sail.

Physicis Robert Forward already proposed in 1983 to use a 26-TW laser system to propel a 100-km light sail, a fresnel lens to focus the beam of the laser, and decelerate the spacecraft with a secondary light sail.

I propose something a bit different, which is to use to use for example a 60 TW-laser to propel a 5-km light sail that would deploy from the spacecraft after the acceleration stage, use parabolic mirror that gradually change their orientation in order to focus the laser beam, and finally use a photon rocket to decelerate the spacecraft.

In theory, it could be possible to achieve 25% the speed of light, reaching the closest potentially habitable exoplanet in less than 20 years.

There are of course many challenges, like building a high-energy continuous-wave laser, reducing the weight of the nuclear fusion reactors, and minimizing the effects of zero gravity during such a long trip.

What do you guys suggest to overcome these challenges?

This is my paper and a short video that summarizes all.

Topic author
alfa015
Posts: 10
Joined: 27.12.2019
With us: 9 months 2 days

Post #2by alfa015 » 17.07.2020, 23:27

hope you enjoyed the video :)


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