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Using Mount Kilimanjaro to Launch Rockets: Chat with GPT

11/18/2024 8:40 AM

I occasionally "bounce ideas" off Chat GPT, it normally comes back with good reasons why my idea will fail, or, with information about research which has already been done in the area. On this subject I was surprised by the reasonably favourable response. In addition I was astonished by how rapidly it came back with a comprehensive reply to the main proposition. I believe that I have mentioned both these ideas: the Kilimanjaro rocket launch, and, the extended "head" hydro. scheme before on CR4.

I said:

Very approximately: how much would it cost to buy the northern area of Mount Kilimanjaro National park from Tanzania? I'm talking about the area including the mountain itself about 90 Km West to East and 70 Km North to South.

ChatGPT said:

Purchasing land within a national park, especially one as iconic and environmentally significant as Mount Kilimanjaro National Park, is not a straightforward financial transaction. Such land is protected by national and international conservation laws, making it effectively priceless in monetary terms. Here are key considerations:

1. Legal and Political Constraints:

Mount Kilimanjaro National Park is a UNESCO World Heritage Site, which means it has global significance and is protected under international treaties.

Tanzanian law protects national parks as public land, managed by the Tanzania National Parks Authority (TANAPA). Selling this land would require changing legislation and would likely face intense local and global opposition.

2. Economic Valuation:

Tourism Revenue: Kilimanjaro generates significant revenue for Tanzania, both directly through tourism (climbing fees, park permits) and indirectly through associated industries (hotels, guides, and transport). This annual economic contribution could be estimated at tens of millions of dollars.

Environmental Value: The park provides ecological services, such as water catchment and biodiversity preservation, which are invaluable to local and global ecosystems.

3. Land Value Approximation:

If hypothetically the land could be valued for its size alone (6300 km² approximately), its worth would far exceed typical land prices due to its ecological and touristic significance. Pristine and protected land with similar characteristics could be valued in billions of dollars if sold privately, though this is purely speculative and doesn't account for the political and cultural ramifications.

4. Global Backlash:

Selling Kilimanjaro’s land would likely spark global outcry, as it would compromise conservation efforts and cultural heritage. The international community, NGOs, and governments would likely intervene.

If you're looking to contribute to the preservation or development of Mount Kilimanjaro rather than "own" it, there are many opportunities for conservation partnerships or tourism investments that align with sustainable goals. Let me know if you'd like more information about such options!

I said:

The mountain is "potentially" worth far more than the hundreds of billions of dollars it might be sold for. It is easily the best place on the planet to launch space rockets. It's well known that sites closer to the equator are better. In addition starting the launch from six kilometers from sea level has huge advantages. Compared to other high locations it would be relatively easy to build the road infrastructure to transport "materials" to the summit. In addition, because it rises so steeply and consistently it would be easy to build a linear rail gun to launch the rockets; this would eliminate the largest most fuel consuming first stage. Because the air is much thinner at 5 Km the "launch" speed could be much higher than a similar rail gun at lower altitudes.

The power for the rail gun could easily be supplied by a hydroelectric generator. Most hydro. schemes have a relatively low "head" between the reservoir and the generator. Again because of the steep and consistent slope of the mountain it would be easy to design a scheme with a very much larger "head". You could get away with a relatively small reservoir half way down the mountain and the generator near the bottom.

Of course the launch would take place from West to East to take advantage of the rotation of the earth. This would mean that it would be relatively easy to arrange for the "carrier section" of the rail gun to land in the Indian Ocean.

Astonishingly to me GPT replied instantly: Chat GPT said:

Your idea of leveraging Mount Kilimanjaro for space launches is undeniably fascinating and well-founded in terms of physics and engineering potential. Here’s a breakdown of the feasibility and implications:

1. Advantages of Kilimanjaro for Space Launches:

Equatorial Location: At 3°S latitude, Kilimanjaro is near the equator, allowing rockets to take full advantage of the Earth's rotational speed (~1,670 km/h at the equator). This can save significant energy or increase payload capacity.

High Elevation: Starting at 5,895 meters above sea level drastically reduces atmospheric drag and required delta-v for orbital insertion.

Steep and Consistent Slope: The mountain’s slope makes it ideal for a linear railgun or maglev launcher, reducing reliance on traditional fuel-heavy first stages.

Hydropower Potential: With Kilimanjaro’s height, a high-head hydroelectric system could generate substantial power for railgun operations, adding a sustainable energy component.

Recovery Feasibility: Launching eastward ensures that booster or railgun components land in the Indian Ocean, simplifying recovery.

2. Challenges and Considerations:

Geopolitical and Legal Hurdles:

Protected Status: Kilimanjaro’s status as a national park and UNESCO World Heritage Site would make repurposing the area nearly impossible under current frameworks.

Sovereignty: Any such project would require Tanzania’s full approval, along with potential partnerships or concessions to international stakeholders.

Global Opposition: Environmental and cultural activists, as well as international conservation bodies, would likely push back on converting a natural wonder into an industrial hub.

Engineering Challenges:

Railgun Construction: Building a railgun up Kilimanjaro's slope would involve advanced engineering to deal with the steep incline, material transport, and structural integrity.

Environmental Impact: Blasting launches and constructing infrastructure on Kilimanjaro would have significant ecological consequences, potentially destabilizing ecosystems.

Infrastructure Logistics: Transporting materials to a remote region and to such high altitudes would require substantial investment in road and rail infrastructure.

Economic Viability:

While the site offers unique advantages, the upfront costs for engineering, land acquisition, environmental impact mitigation, and international negotiations could easily exceed hundreds of billions of dollars.

3. Broader Implications:

Game-Changing Space Industry Potential: A Kilimanjaro launch facility could significantly lower the cost of reaching orbit, making space access more affordable and sustainable. This could accelerate global technological advancement and exploration.

Sustainable Energy Innovations: A hydropower setup as envisioned could become a model for high-head systems, providing a renewable power source for both launches and local communities.

Balancing Conservation and Progress: With careful planning, it might be possible to integrate these projects with minimal ecological and cultural disruption, although this requires groundbreaking innovations in sustainable engineering.

4. Alternative Approaches:

If Kilimanjaro’s ecological and cultural significance prove too great to overcome, there are other equatorial high-altitude locations with less protected status that could serve as viable alternatives. Examples include high-altitude plateaus in South America or less steep volcanic regions near the equator.

Would you like further exploration into these alternatives or suggestions for presenting such a proposal in a way that balances innovation with environmental and cultural considerations?

I said:

Yes, I can't imagine that anywhere else would be as perfect, but, it would be good to explore possibilities which would be more geopolitically favourable.

ChatGPT said:

Memory updated

To identify geopolitically favorable alternatives to Mount Kilimanjaro, let's explore other regions with similar geographic and technical advantages:


1. Alternative Locations Near the Equator

Andes Mountains (South America):

  • Key Sites: Chimborazo (Ecuador) or high plateaus in Peru or Bolivia.
  • Advantages:
    • Proximity to the equator (e.g., Chimborazo is nearly on the equator).
    • High elevation, with Chimborazo's peak at ~6,263 meters above sea level, the highest point on Earth from Earth's center.
    • Large expanses of relatively flat plateaus in the Andes are suitable for infrastructure development.
  • Geopolitical Favorability:
    • Countries like Ecuador or Peru might be open to partnerships if significant economic or technological incentives are offered.
    • Less international resistance than repurposing a UNESCO World Heritage Site.

Ethiopian Highlands (East Africa):

  • Key Sites: Mount Ras Dashen or nearby plateaus.
  • Advantages:
    • High altitudes (4,550 meters for Ras Dashen).
    • Geopolitically, Ethiopia has shown interest in developing its space sector and might welcome foreign investment.
  • Challenges:
    • Infrastructure development would require significant investment.
    • While less ecologically sensitive than Kilimanjaro, some cultural and environmental concerns would still need addressing.

Puncak Jaya (Indonesia):

  • Advantages:
    • Located on the island of New Guinea, near the equator.
    • Elevation of 4,884 meters.
    • Indonesia has a growing interest in aerospace and might be geopolitically favorable for such partnerships.
  • Challenges:
    • Remote location and rugged terrain complicate infrastructure development.
    • High rainfall and potential environmental concerns.

2. Offshore or Floating Platforms

  • Advantages:
    • Placing a launch platform at sea near the equator, such as in international waters off the coasts of Ecuador or the Maldives, avoids most land-use disputes.
    • Floating platforms, like those proposed by SpaceX, can also minimize ecological impacts and be repositioned if needed.
  • Challenges:
    • Lack of natural elevation would make railgun concepts less feasible, but traditional rocket launches are still viable.
    • Higher engineering costs to ensure stability and logistics for assembly and fueling.

3. Geopolitical Criteria for Selection

To enhance favorability:

  • Look for countries with active interest in space exploration or significant economic incentives for partnerships.
  • Prioritize locations with existing infrastructure or where development would benefit local economies.
  • Avoid regions with high conservation or cultural value to minimize international pushback.

Next Steps

Would you like me to focus on:

  • Detailed comparisons of specific sites (e.g., Andes vs. Ethiopian Highlands)?
  • Practical implementation for offshore platforms?
  • Strategies for aligning space launch projects with sustainable development goals?

I said:

Detailed comparisons of specific sites, please.

ChatGPT said:

Here’s a detailed comparison of potential alternative launch sites that balance equatorial proximity, high altitude, and geopolitical favorability:


1. Mount Kilimanjaro (Tanzania)

Summary:

The ideal reference point, combining proximity to the equator, altitude, and a relatively consistent slope for infrastructure.

  • Latitude: ~3°S
  • Elevation: 5,895 meters
  • Advantages:
    • Near-perfect conditions for equatorial launches.
    • Potential for sustainable energy solutions (e.g., hydroelectric systems).
    • Sufficient infrastructure nearby to support tourism and logistics.
  • Challenges:
    • Significant conservation and geopolitical hurdles.

2. Chimborazo, Ecuador

Summary:

A strong contender due to its high elevation and equatorial location.

  • Latitude: ~1°S
  • Elevation: 6,263 meters
  • Advantages:
    • Technically, the farthest point from Earth’s center due to equatorial bulge.
    • Ecuador is politically stable and has a developing space sector.
    • The Andes region offers extensive plateaus for infrastructure.
  • Challenges:
    • Environmental concerns due to protected status and unique biodiversity.
    • Requires negotiation with Ecuador’s government and local communities.

3. Ethiopian Highlands (Ras Dashen)

Summary:

An excellent East African alternative to Kilimanjaro, with less environmental sensitivity.

  • Latitude: ~13°N
  • Elevation: 4,550 meters
  • Advantages:
    • Ethiopia is actively seeking partnerships for its nascent space program.
    • Highlands region is less ecologically sensitive compared to Kilimanjaro.
    • Strong government interest in economic development projects.
  • Challenges:
    • Higher latitude compared to Kilimanjaro (less equatorial advantage).
    • Infrastructure development required in remote areas.

4. Puncak Jaya, Indonesia

Summary:

A high-altitude, equatorial site in a region with growing aerospace ambitions.

  • Latitude: ~4°S
  • Elevation: 4,884 meters
  • Advantages:
    • Close to the equator with substantial elevation.
    • Indonesia is expanding its space capabilities and might be a favorable partner.
    • The island's rugged terrain offers natural buffers for secure launches.
  • Challenges:
    • Difficult terrain for constructing large-scale infrastructure.
    • High rainfall and ecological sensitivity of the rainforest region.

5. Rwenzori Mountains, Uganda/Democratic Republic of Congo

Summary:

An alternative in the East African region with high peaks and potential for collaboration.

  • Latitude: ~0.4°N
  • Elevation: 5,109 meters (Mount Stanley, highest peak)
  • Advantages:
    • Very close to the equator.
    • Collaborative opportunities with Uganda or DRC, both seeking economic development.
    • Easier to develop than Kilimanjaro due to less steep slopes in some areas.
  • Challenges:
    • Political instability in the region, particularly in the DRC.
    • Lack of existing infrastructure and conservation concerns.

Key Metrics Comparison

Site Latitude Elevation Slope Infrastructure Geopolitical Favorability Environmental Sensitivity
Kilimanjaro 3°S 5,895 m Excellent Moderate High
Chimborazo 1°S 6,263 m Very Good High Moderate
Ethiopian Highlands 13°N 4,550 m Good High Moderate
Puncak Jaya 4°S 4,884 m Moderate Moderate High
Rwenzori 0.4°N 5,109 m Good Moderate Moderate

Next Steps

Would you like to dive deeper into a specific site? For example:

  • Geopolitical strategies to engage with a specific country.
  • Engineering feasibility for infrastructure.
  • Environmental impact studies for a preferred site.
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Commentator

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#1

Re: Using Mount Kilimanjaro to Launch Rockets: Chat with GPT

11/18/2024 9:12 AM

Awesome questions, awesome replies, thank you.

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Guru

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#2

Re: Using Mount Kilimanjaro to Launch Rockets: Chat with GPT

11/18/2024 10:11 AM
  • Starship launch cost: Elon Musk has estimated that the launch cost of Starship could be as low as $2–3 million.

Pretty tough to beat that price, and location is important, who wants to launch from a foreign territory..

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#3
In reply to #2

Re: Using Mount Kilimanjaro to Launch Rockets: Chat with GPT

11/18/2024 10:24 AM

I said:

Are there any sites in the United States, that would offer most of the advantages?

ChatGPT said:

ChatGPT

The United States has some locations that could offer partial advantages for space launches, particularly high-altitude sites. While no U.S. site is as close to the equator as Kilimanjaro or Chimborazo, certain high-altitude areas provide benefits for reduced atmospheric drag and infrastructure potential. Here’s an analysis of viable U.S. sites:


1. Mauna Kea, Hawaii

Summary:

A high-altitude volcanic peak in the middle of the Pacific Ocean.

  • Latitude: ~20°N
  • Elevation: 4,207 meters
  • Advantages:
    • High elevation and proximity to the equator relative to other U.S. locations.
    • Established infrastructure for observatories, which demonstrates the feasibility of construction at this altitude.
    • Surrounded by the Pacific Ocean, providing safe trajectories for eastward launches.
  • Challenges:
    • Cultural and environmental sensitivity: Mauna Kea is sacred to Native Hawaiians and home to unique ecosystems.
    • Infrastructure upgrades would face significant opposition from local and international stakeholders.

2. White Sands Missile Range, New Mexico

Summary:

A flat, high-altitude desert region with existing aerospace infrastructure.

  • Latitude: ~33°N
  • Elevation: ~1,200 meters
  • Advantages:
    • Existing launch infrastructure and military support for aerospace testing.
    • Flat terrain simplifies railgun or maglev construction for horizontal launches.
    • Good weather conditions for year-round operations.
  • Challenges:
    • Lower elevation compared to other options reduces atmospheric advantages.
    • Farther from the equator, reducing the rotational boost for launches.

3. San Augustin Plains, New Mexico

Summary:

A vast, high-altitude plain suitable for experimental infrastructure.

  • Latitude: ~34°N
  • Elevation: ~2,000 meters
  • Advantages:
    • Expansive, flat area with minimal ecological disruption potential.
    • Close to White Sands, offering access to existing aerospace expertise.
    • Potential for solar energy installations to power infrastructure.
  • Challenges:
    • Still relatively low compared to Kilimanjaro or Chimborazo.
    • Distance from the equator reduces orbital efficiency.

4. Rocky Mountains (Colorado/Wyoming)

Key Sites: Pikes Peak (Colorado) or high-altitude plateaus in Wyoming.

  • Latitude: ~39°N (Pikes Peak)
  • Elevation: Up to ~4,300 meters (Pikes Peak).
  • Advantages:
    • High elevation in accessible areas.
    • Existing infrastructure and logistics capabilities.
    • Relatively low environmental sensitivity compared to sites like Mauna Kea.
  • Challenges:
    • Far from the equator, requiring more energy for orbital launches.
    • Steeper terrain in some areas could complicate large-scale construction.

5. Southern Texas (Near SpaceX Starbase)

Summary:

Flat, coastal area optimized for traditional launches rather than high-altitude benefits.

  • Latitude: ~26°N
  • Elevation: Sea level
  • Advantages:
    • Proximity to the Gulf of Mexico for safe, eastward launches.
    • Existing infrastructure at SpaceX’s Starbase in Boca Chica.
    • Favorable regulatory environment for aerospace innovation.
  • Challenges:
    • No high-altitude advantage; relies entirely on traditional launch systems.
    • Coastal location vulnerable to hurricanes and other extreme weather.

Comparison of U.S. Options

SiteLatitudeElevationProximity to EquatorInfrastructure PotentialEnvironmental/Cultural Sensitivity
Mauna Kea20°N4,207 mModerateModerateHigh
White Sands33°N1,200 mLowHighLow
San Augustin34°N2,000 mLowHighLow
Rocky Mountains39°N~4,300 mVery LowModerateModerate
Southern Texas26°NSea levelModerateHighLow

Conclusion

For a U.S.-based space launch site with some of the advantages of Kilimanjaro:

  • Best Compromise: Mauna Kea offers high altitude and proximity to the equator but comes with significant cultural and environmental challenges.
  • Logistically Favorable: White Sands or San Augustin Plains are well-suited for experimental railgun or maglev systems, though they lack equatorial benefits.

Would you like me to focus on the feasibility of a specific site or explore how U.S. locations could compete globally despite their limitations?

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#4
In reply to #3

Re: Using Mount Kilimanjaro to Launch Rockets: Chat with GPT

11/18/2024 5:20 PM

I have to question the fuel savings, moving this kind of weight around is not easy....

Certainly dragging this beast uphill at all, would be labor and energy intensive...if even possible...even if you broke it down into parts, it's still an uphill battle all the way....

..."Description. When stacked and fully fueled, Starship has a mass of approximately 5,000 t (11,000,000 lb), a diameter of 9 m (30 ft) and a height of 121.3 m (398 ft)."...

Anybody who has ever driven a heavy load over the mountains, knows what I'm talking about....

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#5
In reply to #4

Re: Using Mount Kilimanjaro to Launch Rockets: Chat with GPT

11/19/2024 8:05 AM

That's the whole point: the linear rail gun eliminates the need for the stage one; the stage two and payload get propelled up the mountain by the rail gun.

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#6
In reply to #5

Re: Using Mount Kilimanjaro to Launch Rockets: Chat with GPT

11/19/2024 3:48 PM

It's not likely that any railgun could propel that amount of weight to any velocity approaching what is needed.... .you're talking about accelerating a million lbs to near escape velocity in a very short distance...

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#8
In reply to #6

Re: Using Mount Kilimanjaro to Launch Rockets: Chat with GPT

12/02/2024 2:02 PM

I agree that a railgun is wrong for putting anything sensitive into space. Rocketry will still dominate this engineering task. The fundamental problem is the magnitude of acceleration to achieve the needed velocity. While a railgun does provide the advantage of using energy from earth-bound sources, this also limits the time and distance one can apply those energy sources to a payload. I understand the proposal is to use a railgun as a "first stage" launch of a rocket. However, will the net increased velocity at the moment of rocket ignition be worth the engineering effort to make the railgun and shockproof the payload from the very high acceleration a railgun produces?

Chat GPT does not discuss this problem. Failing to analyze the repercussions of an engineering approach is a fundamental flaw of today's AI bots. To be fair, many human engineering students also fail to consider the repercussions of a design approach. We all have had "nice try" failures in our engineering. Well at least I have.

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#9
In reply to #8

Re: Using Mount Kilimanjaro to Launch Rockets: Chat with GPT

12/03/2024 9:42 AM

Spacex has cut operational costs to just 1% of what the space shuttle cost to operate...

..."According to available information, the estimated fuel cost for a SpaceX rocket, like the Falcon 9, is around $500,000 per launch based on the cost of the propellants (liquid oxygen and RP-1) used, though the exact cost can vary depending on factors like the specific mission and current market prices; it's important to note that SpaceX does not publicly disclose the exact fuel cost for their rockets."....

..."How much is the fuel cost of launching a SpaceX rocket? For a Falcon 9 launch it's about $200,000 for RP-1 (kerosene) and liquid oxygen (LOX). On top of that is the helium (to start the engines and pressurise the tanks) which costs as much as the LOX."...

https://sciencehiddenfacts.quora.com/How-much-is-the-fuel-cost-of-launching-a-SpaceX-rocket#:

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#10
In reply to #9

Re: Using Mount Kilimanjaro to Launch Rockets: Chat with GPT

12/04/2024 7:07 AM

..." Starship

The current cost per launch of SpaceX's Starship is only five percent of the cost of an SLS launch. SpaceX's CEO, Elon Musk, has set a goal of achieving a launch cost of $10 per kilogram for Starship.

Space Shuttle

The Space Shuttle cost an average of $1.6 billion per flight, or nearly $30,000 per pound of payload to reach low-Earth orbit."...

The reduction in cost here is staggering...$10 vs $60,000...really a quantum leap...

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#11
In reply to #10

Re: Using Mount Kilimanjaro to Launch Rockets: Chat with GPT

12/04/2024 7:24 AM

Now I have been toying around with the idea of launching solid projectiles via the big spinner thingy...

Thinking the way might include an ablative packing substance that would fill voids during high G launches and then evaporate in space...and possibly incorporating an electromagnetic repelling force from the outer wall of the launch mechanism to reduce the G-force on the launch arm...not sure how this would work just yet....

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#7

Re: Using Mount Kilimanjaro to Launch Rockets: Chat with GPT

11/21/2024 11:26 PM

I haven't tried Copilot on anything this extensive. But on the simple questions I have compared the 2 AIs on, Copilot was similar or perhaps a bit better than ChatGPT.

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