Delta-V map for SFS 1.5

[Rocket_Scientis2]

Uh might I ask a question, I play on realistic mode in SFS, and a delta V map would help a lot. Thing is how would I use this one since I'm guessing it would be designed for normal mode so like would I times it by like 100?
Or do you guys know of, or have a delta V map for realistic mode just lying around?

 

[Altaïr]

Uh might I ask a question, I play on realistic mode in SFS, and a delta V map would help a lot. Thing is how would I use this one since I'm guessing it would be designed for normal mode so like would I times it by like 100?
Or do you guys know of, or have a delta V map for realistic mode just lying around?

You can have a decent approximation by multiplying all values by 4.5 (or √(20) to be exact, 20 being the scale factor between normal and realistic).
However the ΔV map is no longer accurate, it was made long ago, before the planets orbits are made elliptic, and before Jupiter's moons' gravity was nerfed. If you want accurate values, I recommend using ANAIS to calculate the transfers, and Warpinator to teleport yourself for test purposes if you want to simulate a transfer from a particular body.
This will be accurate, and you'll be able to simulate transfers that don't even appear on the ΔV map. Like Venus to Mercury or Io to Europe for example.

 

[Axiom]

Io to Europe for example.

Imagine flying to Europe all the way from Io

 

[Altaïr]

Imagine flying to Europe all the way from Io

Europa of course. It's "Europe" in french, I didn't pay attention.

 

[Axiom]

t's "Europe" in french

Oh I didn't know that

 

[Rocket_Scientis2]

You can have a decent approximation by multiplying all values by 4.5 (or √(20) to be exact, 20 being the scale factor between normal and realistic).
However the ΔV map is no longer accurate, it was made long ago, before the planets orbits are made elliptic, and before Jupiter's moons' gravity was nerfed. If you want accurate values, I recommend using ANAIS to calculate the transfers, and Warpinator to teleport yourself for test purposes if you want to simulate a transfer from a particular body.
This will be accurate, and you'll be able to simulate transfers that don't even appear on the ΔV map. Like Venus to Mercury or Io to Europe for example.

Thank you!

 

[Astro826]

However the ΔV map is no longer accurate, it was made long ago, before the planets orbits are made elliptic, and before Jupiter's moons' gravity was nerfed.

Is there an up to date map for the Jovian system? I haven't found one. For my recent 3-Jovian moon mission with the ideal stages rocket, I found the orbital velocity for every moon and transfer delta V between each set of moons myself. I'll gladly share the numbers if it would help to make a new map.

 

[Altaïr]

Is there an up to date map for the Jovian system? I haven't found one. For my recent 3-Jovian moon mission with the ideal stages rocket, I found the orbital velocity for every moon and transfer delta V between each set of moons myself. I'll gladly share the numbers if it would help to make a new map.

I haven't made one. For the numbers I usually calculate them, but it's nice from you if you can communicate them. However it's complicated to make appear all moon-to-moon transfer on the map: there are 6 of them, I remember I made some tries, but it proved to be hard to read for most people. There is an example of a map I made to show all transfers between planets, but it wasn't very popular, so I gave up that format. To this date I found no satisfying map format that shows all those transfers without being messy.

 

[Axiom]

Do you just show the transfers between moons? like Callisto to Ganymede, Ganymede to Europa, etc

 

[roshan]

Hello guys!

Finally, here it is, the official delta-V map for SFS 1.5:
View attachment 40435

This map can be used to know the delta-V requirements for a particular mission. A delta-V calculator can be used then to design an optimal ship to complete the mission.

If you were used to the delta-V map under SFS 1.4, you'll notice that the transfers are slightly more demanding now. This is because the solar system scale has been raised by a factor 2.5, and the Sun is nearly 3 times more massive than before. The only exception to this is Venus because its orbit has been raised a little more, and it's now relatively closer to Earth than it was before.

Here are a few tips about how to use this map:
View attachment 40436 View attachment 40437
Those tutorials were made with the previous delta-V map, which explains that some numbers are slightly different.


Detailed explanation of the delta-V concept:

If you've never heard about delta-V, you've probably been confused by this term. "Delta-V" litterally means velocity difference. It is an abstract resource for rockets, that tells you "by how much it can make vary its velocity". For example, if your ship is moving at 1650 m/s, and then you accelerate until it reaches 1750 m/s, you've spent 100 m/s of delta-V. And some fuel aswell.
Because a rocket has a limited quantity of fuel, its delta-V is limited too. The delta-V of a rocket mainly depends on its fuel reserve. There are other factors, but I won't elaborate here.

Some calculators allow you to know precisely how much delta-V a rocket has at its disposal, this map tells you how much you need for a given mission. The combination of both allows experienced players to accurately design a ship for a particular mission.

hello can you make one for realistic mode

 

[QMSP]

hello can you make one for realistic mode

https://forum.kerbalspaceprogram.com/topic/226099-delta-v-map-for-rss/ The delta-v requirements would be the same as these ones

 

[roshan]

https://forum.kerbalspaceprogram.com/topic/226099-delta-v-map-for-rss/ The delta-v requirements would be the same as these ones

too small to read but thanks for it

 

[QMSP]

thanks

No problem!

 

[Darthan]

hello can you make one for realistic mode

There is one earlier in this thread - link . I used to use it a lot to plan missions. Now I make use of the ANAIS mod on PC or use a 'calibrated' rocket for normal or hard modes on mobile.

 

[Axiom]

There is one earlier in this thread - link . I used to use it a lot to plan missions. Now I make use of the ANAIS mod on PC or use a 'calibrated' rocket for normal or hard modes on mobile.

I think why this hasn't been updated is because orbits are elliptical the Delta-V requirements change (quite a bit in the case of Mercury)

 

[Altaïr]

hello can you make one for realistic mode

Maybe I'll do it someday, but right now the best opportunity is to use ANAIS and Warpinator if you want to get them easily. Otherwise you can take the values from the current map and multiply them by 4.5, that should give a good approximation. The only problem is that this map is old, and some values are obsolete (especially for Jupiter's moons).

 

[roshan]

Maybe I'll do it someday, but right now the best opportunity is to use ANAIS and Warpinator if you want to get them easily. Otherwise you can take the values from the current map and multiply them by 4.5, that should give a good approximation. The only problem is that this map is old, and some values are obsolete (especially for Jupiter's moons).

alright

 

[FPE Fan]

Nice, and thanks️️ッ