What space related calculations do you use with KSP?

[CaptainKipard]

Some time ago I started making a spreadsheet for calculations that I often use. So far I have:

Hohmann transfer

Inputs: Initial SMA, desired SMA

Outputs: DV, Initial Apoapis/Periapsis, Desired Apoapsis/Periapsis, Initial orbit period, Transfer orbit period

True anomaly / Orbit phase adjustment (for setting up synchronous satellites etc)

Inputs: Current SMA, Longitude in degrees

Outputs: DV, Transfer SMA, Transfer Apoapsis/Periapsis

Eclipse duration (for working out how much energy i need)

Inputs: SMA

Outputs: Time in shadow

SMA (for working out orbit synchronicity, etc)

Inputs: Orbit period

Outputs: SMA, Apoapsis/Periapsis

I'd like to publish it but I would like to add more calculations first.

Give me some ideas. Make sure you add what inputs and outputs it should have.

[Tank Buddy]

Delta V and TWR. That's it.

[LethalDose]

I mainly calculate orbital periods and the dV needed to move between orbits for a variety of reasons (transfer durations, phase angles, vehicle planning, confirming KSO, etc.).

I do use vessel TWR and total/stage dV, but I don't calculate it because it's so much easier to let VOID do it for me.

[nettcod]

Mostly ÃŽâ€v and TWR.

[Kurtvw]

I just use KSPTOT, and Kerbal Engineer. I'm bad at math, but those two little mods are good at math. KSPTOT will give a pretty good picture of whats needed for DeltaV, and Engineer tells me when I've achieved the need.

[Agent30632]

Nothing.

I'm just the type of person who goes "MOAR BOOSTERS!!!"

[Brapness]

If TV sci-fi has taught me anything, it's that a deep understanding of the maths is completely unnecessary for space travel. Now screw the laws of physics, I'm going to Jool...

[vger]

If TV sci-fi has taught me anything, it's that a deep understanding of the maths is completely unnecessary for space travel. Now screw the laws of physics, I'm going to Jool...

Well... in a future where engines are unbelievably fast and efficient, and the cost of running it is no more than buying a tank of gas... yeah, perfect calculations wouldn't be that big of a deal. But there would still be some pilots who would do it. It's like the difference between someone who knows how to drive a car, vs someone who drives like a madman (without ever crashing). The guy who knows how to drive, will save a lot of fuel and maintenance costs in the long run.

[KvickFlygarn87]

I use Tsiolkovsky's, TWR calculation (F = ma), SOMETIMES Vis-viva.

[CaptainKipard]

K, from the sorts of replies this has gotten I'm guessing there's no need to publish that spreadsheet at all.

[AustralianFries]

Delta V and TWR is pretty much all you need.

K, from the sorts of replies this has gotten I'm guessing there's no need to publish that spreadsheet at all.

Do it anyway.

[Drew Kerman]

VOID and Engineer handle most of the heavy work for me for now. KSPTOT and stuff like that will def help once I go interplanetary. The only math I've had to do myself so far are vis-visa to help me plan missions that required a few orbital changes, and burn time because the game estimate is almost always wrong for me for various reasons.