Velocity and acceleration is most often used to determine the time and distance needed to reach translation velocity or decelerate from FTL exit to a dead stop.

Duration and acceleration is handy for determining the max radius of an intercept sphere or how fast you're travelling when a timed event happens.

Distance and acceleration is used to calculate flight times for fly-bys or intercepts. If you need the time for a flight from station to station, divide the total distance by two, calculate, and then double the time. This models acceleration, turn over, and deceleration.

What is orbital velocity and period? Orbital velocity is the exact speed required to maintain a stable circular orbit around a planet or moon. Period represents the time it takes to complete one orbit.

Orbital velocity is the direct result of planetary mass and altitude above the surface (in kilometers.) This utility assumes that all stoney planets and moons have a density of 5,520 milligrams per cubic centimeter (Earth density.) Other density values and planetary data are listed in the side bar.

Round duration and hex size are pulled from the previous section.

RKVs can take many forms; long range missiles, big rocks with a bad attitude, or suicidal spacecraft. In general terms, the only two significant factors are the mass and velocity of the projectiles. How much of that potential energy is actually transferred to the target is subject to a lot of variables that are beyond the scope of this utility.

Mass is measured in metric tons. That's one thousand kilograms per ton. Velocity is determined as a fraction of the speed of light. While this kind of velocity is usually not built up during ship to ship combat, it is possible that a strategic relativistic attack could reach these speeds. Typical values would be like .25 or 25 percent of the speed of light.

Using Heim Quantum Theory as a basis for faster than light (FTL) travel, a ship needs to reach translation velocity before it can engage the second stage drive. The mininum velocity for this drive is 30,000 m/s. Technically, that threshold is not FTL. At that velocity, the second stage speed is equivalent to 10% of light speed. The mininum velocity for true FTL is 300,000 or more meters per second.

The first function determines what your second stage speed will be based on your translation velocity. The second function creates a table that determines the time required to run up to run to speed, translated to FTL, and then exit and possibly decelerate. For ease of use, one G is equal to 10 meters per second.