Table of Contents
What is a good TWR in KSP?
In Kerbal Space Program (KSP), optimum thrust-to-weight ratio (TWR) is around 1.5-3. When looking at NASA, SpaceX, Blue Origin spacecraft, the launch TWR is around 1.25-1.3.
What is ISP KSP?
From Kerbal Space Program Wiki. The specific impulse (usually written as Isp, or in-game as ISP) defines the efficiency of an engine. It is thrust per the rate of fuel consumption. Or equivalently, it is change in momentum per amount of fuel consumed.
What does Delta V mean in KSP?
Delta-V, or dV as it’s sometimes abbreviated, is a measure of the total amount of acceleration your ship can output. There’re certain amounts required to get into orbit, to do certain interplanetary transfer burns, etc.
Does TWR matter in space KSP?
And – but that was answered – TWR doesn’t matter in space. Actually. If TWR is low, you just need longer to achieve a certain change in velocity.
What is the best engine in KSP?
Overall winners:Nerv: Long Live the King! The nuclear engine is still by far the best for vacuum operation, despite 0.75 TWR being above its comfort zone. Vector/Mammoth: The most versatile engine in the game (at least in Sandbox) is begging for a thrust reduction still one of the best options for easy delta-V.
Does thrust to weight ratio matter in space?
No. But you need useful acceleration, for example to take advantage of the Oberth effect, as stated above. Also if you are sending a payload to another planet, you will need good thrust to enter orbit. Otherwise you will not have enough time to brake into orbit.
Why is thrust to weight ratio important?
The thrust-to-weight ratio of an engine is greater than that of the complete launch vehicle, but is nonetheless useful because it determines the maximum acceleration that any vehicle using that engine could theoretically achieve with minimum propellant and structure attached.
Is higher ISP better in KSP?
ISP is always better high. Always. Sometimes you’d rather sacrifice ISP for more total thrust, and a lot of engines are more effecient in atmosphere or in vacuum, but the higher the ISP, the more value you’ll get out of your heavy, limited fuel.
Is a higher ISP more efficient?
The rate of change of momentum of a rocket (including its propellant) per unit time is equal to the thrust. The higher the specific impulse, the less propellant is needed to produce a given thrust for a given time and the more efficient the propellant is.
How much delta V needed KSP?
Assumption: It takes roughly 2500 m/s of Δv to escape Kerbin’s atmosphere before vacuum Δv values take over for the stage powering the transition (actual value ranges between 2000 m/s and 3400 m/s depending on ascent). Note that, as of KSP 1.3. 1, around 3800 m/s of Δv is required to reach an 80km orbit from the KSC.
How much thrust is needed for space?
Here, we’re measuring the force of thrust produced, as that is the force that pushes the rocket into space. It has to produce a lot of thrust to escape the earth’s gravitational pull, known as escape velocity. It has to produce 3.5 million kilograms (7.2 million pounds) of thrust to do so!
How much thrust does a rocket take off?
Thrust needs to be greater than weight As an example, think of a rocket with a mass of 10 kg. The force of gravity pulling it downwards is 10 x 9.8, which equals 98 N. To get the rocket off the launch pad, the thrust must be greater than 98 N.
How fast is rocket exhaust?
At what speed is propellant expelled in a normal rocket? A very widely used metric called specific impulse addresses exactly this issue. Chemical rockets (presumably that’s what you mean by a “normal rocket”) have specific impulses that range from about 2000 to 4500 meters per second.