Tylo Challenge: Landing without engines

[jakeman8888]

So I have been experimenting with "landers" that don't even have engines but can withstand a high speed impacts. So far I have landed on Mun and Minimus without using engines below 5K meters by just using my "landers". I'm not showing my secret lander because it would make it too easy.

Lets make this a challenge to land on Tylo without the use of any engines 5,000 meters and below. Picture proof is required, and i'll be experimenting with this starting now.

Your craft must be MANNED. 5K meters above the ground, not altimiter.

Here is an example.

Edited July 29, 2013 by jakeman8888

[Captain Sierra]

Tylo is like Kerbin, just minus air resistance. You are asking us to lithobrake (and not die) on the largest atmosphere-less rock in the game. Can this even be done? (hint: if you can pull it off on Kerbin, you're halfway there.

[jakeman8888]

Tylo is like Kerbin, just minus air resistance. You are asking us to lithobrake (and not die) on the largest atmosphere-less rock in the game. Can this even be done? (hint: if you can pull it off on Kerbin, you're halfway there.

Kerbin is easy... I've done Mun and minimus which is... A bit more difficult due to the lack of an atmosphere.

[tavert]

If you come to a complete stop 5000 meters above the terrain, taking g as roughly constant over that altitude range at 7.85 m/s^2 for Tylo, your speed when you hit the surface will be roughly 280 m/s. You sure this is possible?

[jakeman8888]

If you come to a complete stop 5000 meters above the terrain, taking g as roughly constant over that altitude range at 7.85 m/s^2 for Tylo, your speed when you hit the surface will be roughly 280 m/s. You sure this is possible?

If your math is correct i'd say yes it is possible. I'll test something for you quickly.

Obviously if you are head on that may not end well.

Edited July 28, 2013 by jakeman8888

[koshelenkovv]

If you come to a complete stop 5000 meters above the terrain, taking g as roughly constant over that altitude range at 7.85 m/s^2 for Tylo, your speed when you hit the surface will be roughly 280 m/s. You sure this is possible?

It is perfectly possible to lithobrake at mun (esp. at shallow enough angle) at 400 m/s.

But in my case in the moment of impact game glitches and bugs out more often than not.

[lmm]

280m/s is the vertical component of velocity here. So to hit at a shallow angle you'd have to be going much faster.

[metaphor]

Is it 5000 meters above the terrain or 5000 meters by what the altimeter says?

If you stop your vertical speed 5000m above the terrain, you can get your perpendicular-to-surface speed at impact to be less than 280 m/s by using a slope.

A little off-topic, but I have this screenshot which is technically lithobraking while going at orbital speeds, but at that speed it bugs and there's no part collision with the surface.

[jakeman8888]

Is it 5000 meters above the terrain or 5000 meters by what the altimeter says?

If you stop your vertical speed 5000m above the terrain, you can get your perpendicular-to-surface speed at impact to be less than 280 m/s by using a slope.

A little off-topic, but I have this screenshot which is technically lithobraking while going at orbital speeds, but at that speed it bugs and there's no part collision with the surface.

The altimiter. Also i'm not really sure what that screen shot it.

[metaphor]

The altimiter. Also i'm not really sure what that screen shot it.

In the screenshot, the ship has an extension made of cubic octagonal struts that is hitting the surface. But it is in orbit. (Look at its surface speed)

If it's the altimeter that has to read 5000, I'm pretty sure there's some landing spots on Tylo above 5000m altitude.

[InspectorBumHat]

the vertical velocity in your screen shot is over 15m/s, that's too high and you would just end up impacting moments after the screenshot, you vertical velocity needs to be much lower

[metaphor]

the vertical velocity in your screen shot is over 15m/s, that's too high and you would just end up impacting moments after the screenshot, you vertical velocity needs to be much lower

There's a slope there though, there wasn't any impact before or after the screenshot, just a close pass. Anyway, it's not a good example for this challenge since it's going too fast.

If the terrain on Tylo goes up to 4 km and you stop engines at 5 km, you would be going 125 m/s by the time you hit the ground, about the same as on Kerbin without parachutes.

[tavert]

Was the terrain on Tylo redone in 0.21? It used to go up higher than 11km.

[jakeman8888]

Was the terrain on Tylo redone in 0.21? It used to go up higher than 11km.

Well dang I wasn't aware of that. Lets change the rules to 5k above the ground.