Players can fly too close to stars and land on gas giants

[Luomu]

To do:

• raise hull temperatures to deadly levels at a reasonable distance from stars (a million kilometers? I don't mean realistic, there should be opportunities to admire stars :))
• for gas giants, raise atmospheric pressure to deadly levels at a reasonable altitude. I don't know the numbers exactly.

[Brianetta]

For gas giants, and Venus for that matter, have high pressures do some damage to the ship. The surface of Saturn is about 6 bar; the surface of Venus is well over 100. Venus should crush almost anything, whilst Saturn shouldn't have a landable surface (and should probably borrow from stars on that score).

[Ae-2222]

It's best to decide on the best altitudes for gameplay reasons (sight seeing, diving into thicker atmospheres where weaker ships can't follow) for now and work backwards from that to derive exact hull strengths later when we have better atmospheric models. For reference the bottom of the Mariana trench, which people apparently successfully managed to reach using diving vessels, is 1086 bars according to google. Gas giant radii are given as 1 bar(~1atm) levels. For gas giants,for now, there needs to be a decent multiplier to the pressure returned so eventually things get crushed.

• Tomm's atmospheric scale height branch is able to make rendered atmospheres a lot thicker.
• Exact figures?.. Gas giant pressures follow normal atmosphere pressure rules i.e. an infinitesimal shell of atmosphere should have a pressure gradient that opposes the effects of its weight. Eventually gas composition and the adiabati c atmosphere branch should give numbers..

[Brianetta]

Submarines are designed to resist outside pressure, whereas spacecraft are designed to contain pressure within. Something that can do both would involve compromises of some sort, which wouldn't necessarily be found on all ships. So, "crush almost anything." It should be an exceptional vehicle that can carry a person from vacuum to high pressure whilst maintaining a constant environment within; possibly one with all sorts of foibles, for balance.

The oceans of Earth have nothing on Jupiter, which can compress hydrogen into a metallic state, if physicists are to be believed.

Gas giant radii are given as 1 bar(~1atm) levels.

This is interesting from a Venusian perspective, because the 1 bar level is quite far (about 50km) above the solid surface. Not only that, but it's at a relatively comfortable temperature range (0-50°C). Buoyant space stations could conceivably be built there, if something in the atmosphere was found that was worth having... and a similar approach could be used in the upper atmospheres of gas giants. Bit windy, though, in all cases.

[Brianetta]

Just for reference (-:

[impaktor]

related to #206

[lwho]

I was thinking that once we have New Equipment, we could create a property "pressure_resistance" that would maybe be 1-2 atm for a bare hull. Something considerable higher (10-20atm?) for atmospheric shield and create a high pressure shield that would even sustain the pressure on Venus.

When flying through higher pressure, the hull should just accumulate damage (rate depending on how much one is over the limit).

[Bodasey]

I strongly agree with lwho's Idea of the ship equipment.

I looked for exactly these data in the pioneerwiki, have not found them, so I did a "Gas giant ship crush test" and it turned out that my Amphiesma ship was destroyed at very different atmospheric pressures on different Gas giants (strange, why?) - until I noticed that the ship crashes on a virtual surface I never expected there.