### VOLUME III: INTERSTELLAR Table of Contents

**INTERSTELLAR flights could take centuries.**

Fortunately, g-force could reduce this to a few years.

Fortunately, g-force could reduce this to a few years.

Unfortunately, fuel can severely limit duration/distance for interstellar g-force voyages; though, fuel is not a problem for interplanetary flights. G-force vessels can easily carry sufficient fuel to accelerate at constant g-force throughout a trip to Mars, which would take a few days and only a few percent of the ship's mass for fuel. However, interstellar vessels would easily consume well over 100% of its weight in fuel during the multi-year voyage.

Thus, interstellar ships will separate their voyages into three phases:

- G-force for about a year to accelerate to a high percentage of light speed.
- Conserve fuel by cruising for a few years at this speed to save fuel (maintain gravity via longitudinal spin).
- Decelerate back to an orbital speed to conduct interplanetary operations at the destination star.

1. INTERSTELLAR SCENARIOS. TE has grouped most common scenarios into 1) Theoretical 2) Feasible 3) Practical. Which technologies are most likely and therefore most practical? Let's focus on them.2. PUSH TO INTERSTELLAR. Interplanetary performance envelope will need considerable "pushing" for interstellar flights. Particle exhaust speeds will need to be in the high ninety percentiles of light speed. |

3. ACCELERATE FOR A YEAR: Compare spaceship's g-force speeds with c, light speed. See associated 1G TABLE: Accelerate for 1 Year. |

4. CALCULUS DOES DISTANCE. Use exponential to determine g-force interstellar speeds; use integral to determine distance traveled. |

5. TO NEIGHBOR STARS: Between accelerating and decelerating, stellar flights need a lengthy cruise phase. |

6. GETTING THERE: PRACTICALITY G-force acceleration requires mass/energy conversion. Since spaceship has limited mass; it has limited range. Practicality limits range even further. |

7. RECURRING REMAINDER INCREASES PRACTICALITY: Make the feasible range more practical with a dynamic efficiency factor which inversely correlates with vessel performance (exit particle velocity).8. TOTAL TIME DILATION: Can easily compute large part of time dilation during cruise; much more difficult to compute time dilation for acceleration/deceleration portions of flight. |

9. HELIUM-3, WILL IT GET US THERE? No, but it'll keep us warm during the trip; thus, He-3 might very well prove essential for space travel. |

10. INTERSTELLAR RAMJET might enable inflight refueling. The interstellar ramjet (proposed by Dr. Bussard in 1960) is a possible solution to the inherent transportation problem of having to carry enough fuel to power entire flight. |

11. INTERSTELLAR SUPER G. Greater than g-force propulsion can be an enormous help to interstellar travelers. See associated 7G TABLE: Accelerate for 100 Days.12. SNOWBALL FROM OORT Sol's boundary cloud contains "trillions of comets" which could benefit humankind enroute to the stars. See associated 7G TABLE: Decelerate for 48ΒΌ days.13. MORE SNOWBALLS More ways to throw more snowballs. See associated 1G TABLE: Decelerate for 1 Year. |

14. INTERSTELLAR COMMUNICATIONS Maintaining contact will prove challenging. Maintaining huge data flows over these long distances will likely prove even more so. |

15. STELLAR LIGHTHOUSES Like Earth's coastal lighthouses, neighboring stars (see examples in OCTANTS) can help us avoid enroute hazards. They also provide BEARINGS to precisely track remaining distance to our destinations. |

VOLUME 0: ELEVATIONAL |
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VOLUME I: ASTEROIDAL |

VOLUME II: INTERPLANETARY |

VOLUME III: INTERSTELLAR |

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