#### Grumpy RPG Reviews

##### Explorer

Edit: I am open to comments, corrections and second opinions.

So I’m working on an adventure involving flying a caravel through the astral plane at a high rate of speed, relative to the fixed geography of Earth. It then occurred to me, what happens if the crew runs the ship into a fixed object at such speed?

Below is the math I am working on, but assistance is welcome. Please note, all the numbers are rounded from the decimal.

The caravel weighs 300 tons, or 600,000 pounds, or 272,155 kg

Is it traveling at 1,124 mph, or about 1,809 kph

or 30 kp minute

or .5 kp second

or 500 meters per second

To calculate the impact in joules I have;

272,155 kg x (500 m x 500 m) = 68,038,750,000 / 2 = 34,019,375,000 J or 34

A hand grenade (like the Russian F1) releases 251,000 joules. For the sake of argument, let’s say that equals 1d6 of damage.

Then the impact does 135,535d6 damage to the vehicle, everyone one and everything aboard, and whatever it impacts.

This is why you should not travel at ludicrous speed.

So I’m working on an adventure involving flying a caravel through the astral plane at a high rate of speed, relative to the fixed geography of Earth. It then occurred to me, what happens if the crew runs the ship into a fixed object at such speed?

Below is the math I am working on, but assistance is welcome. Please note, all the numbers are rounded from the decimal.

The caravel weighs 300 tons, or 600,000 pounds, or 272,155 kg

Is it traveling at 1,124 mph, or about 1,809 kph

or 30 kp minute

or .5 kp second

or 500 meters per second

To calculate the impact in joules I have;

272,155 kg x (500 m x 500 m) = 68,038,750,000 / 2 = 34,019,375,000 J or 34

^{9}J (a bit more than the explosive power of about 8 tons of TNT)A hand grenade (like the Russian F1) releases 251,000 joules. For the sake of argument, let’s say that equals 1d6 of damage.

Then the impact does 135,535d6 damage to the vehicle, everyone one and everything aboard, and whatever it impacts.

This is why you should not travel at ludicrous speed.

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