Thrust to Weight Ratio Calculator
For rockets, the point of take-off is most important part of a launch. Up until then, everything has been sitting there still, and when it … Read More
JSCalc
Rocket Thrust Calculator
A Rocket thrust calculator takes data from geometry of nozzle and the rate at which propellant flows through it to produce a quantifiable amount of … Read More
Exhaust Velocity Calculator
The currency of spaceflight is exhaust velocity. It show up on the data sheet as just a number, but it’s a measure of how much … Read More
Specific Impulse Calculator
There’s one number that matters most in rocketry: specific impulse. It’s the efficiency metric for converting fuel into movement. A bigger number mean more thrust … Read More
Rocket Mass Ratio Calculator
Rocketry is hard: You can’t get anywhere without carrying enough fuel to get there. And then you’ve got a spacecraft design on the screen, all … Read More
Rocket Equation Calculator
But it’s not about explosions or fire. There is a quiet tyranny at the heart of every rocket launch. It’s called the rocket equation and … Read More
Hohmann Transfer Delta-V Calculator
For moving an object from one circular orbit to another, there’s still only one best route: the Hohmann transfer, a double push on a single … Read More
Satellite Signal Delay Calculator
Play an online game on a satellite link: you get instant lag. Pressing the key makes your character jump but only a fraction of a … Read More
Satellite Coverage Area Calculator
If you’re reading this, odds are that you’re at a coffee shop, probably on your phone, and enjoying a good connection. Chances are you haven’t … Read More
Satellite Ground Speed Calculator
When I think of a satellite, I imagine it to be a perfectly still object in space, silently surveying the earth below from on high. … Read More