Tylo Delta V

[fireblade274]

is 4900Dv enough to land and return from Tylo? The vessel will start in Tylo LKO, land, then return to mothership

[Empiro]

Yes, according to the delta-V maps, though it's cutting it pretty close unless your landing is near perfect.

[fireblade274]

What is the minimum on the maps for the planet? I actually have to make do with 4778Dv now...............................

Edited December 9, 2015 by fireblade274

[Starhawk]

The maps I checked said 4540 m/s.

When I went, my lander had 5200 and it didn't seem like a lot of margin.

Happy landings!

[Warzouz]

What TWR do you have ? from which altitude do you start deorbiting ?

In beta 0.9, I did it with a low TWR and I used 6000m/s from and to 30km.

 

[Streetwind]

dV required depends strongly on your piloting skills and your initial orbit. You need a lot less dV to land from a circular 10x10 km orbit above the surface than from an elliptical 20 x 800 km one.

Most dV maps give minimum numbers. In other words, when a map says 4540 m/s, it assumes the lowest possible circular orbit that will not plaster you against a mountaintop, as well as a perfectly flown reverse gravity turn landing onto an unobstructed landing site, followed by a launch straight back into that lowest possible of all orbits.

Therefore you should always have some extra fuel margin to compensate for less than perfect piloting, adverse landing site conditions, and higher starting orbits.

Edited December 9, 2015 by Streetwind

[ElWanderer]

From a 30km x 30km orbit my first successful landing (at 4km altitude) took 3150m/s and ascent cost 2700m/s.

My follow-up attempt required a bit less to land (I don't seem to have recorded the figures) as I had a better idea of what I was doing. Even so, I took a multi-stage lander with 7km/s of delta-v just in case. Tylo is a harsh mistress.

[Warzouz]

I also did a 2270 m/s landing only but that was a test probe with with high TWR (4.5 starting at 10km)