My Fuel Density Calculations Seem... Weird....

@mjdfx150529 yeah i screwed up the radius calculations! Thanks so much for adding to the knoledge of the game before it comes out! :)

@MyMessage Check out my post:
https://www.simplerockets.com/Forums/View/1155/Density-of-RP-1-fuel-and-dry-mass-of-fuel-tanks
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Yah.... I think I’ll let the smarty pants do all the hard work, I’m not into that kinda math yet.

Even more stuff now
Using RP-1's density as 810kg / m^3
Time it by the fuel's ideal volume of 1.77m^3 (The value that I got) to get mass of 1434kg
Subtract that from the fuel tank's total mass of 1797kg to get 363kg as the fuel tank's dry mass.
However, this is not accurate, since I assumed that all volume in the fuel tank is fuel, which is not true (as we now know that the fuel tank has mass), but it will make for quite a good estimation.
Now,
The volume of the tank is 1.77m^3, we divide mass by volume to get the fuel tank's empty density as 205kg / m^3
However, the mass of the fuel tank should be determined by its surface area, not its volume (since it is a container). So, dividing the mass by the tank's surface area (2 * 0.75^2 * 3.14 + 1.5 * 3.14 * 1.17 = 9m^2) to get mass per surface area as 40kg / m^2
40 is a much nicer value than 205, so I think that the mass of an empty tank is determined by its surface area, not volume.

So...
Using the height you gave in your post: 1.17m
The radius of the command pod is 0.75m
I got a volume of 1.77m^3 (I have no idea how you got such a large number)
Assuming that all is fuel, density is 1797 / 1.77 = 1186kg / m^3
Quite close to RP-1's 810kg / m^3

You are wrong
Fuel consumption of Apex 1: 1350L / s
Specific Impulse of Apex 1: 298s
Thrust of Apex 1: 3200000N

gravitational acceleration at surface of planet: 9.81m/s
We could get exhaust velocity of the engine as 298 * 9.81 = 2923m/s
Then we could get mass flow rate as 3200000 / 2923 = 1095kg / s
We divide mass flow rate by fuel flow rate to get density 0.81kg / L, or 810kg / m^3
Density of RP-1 is 810kg / m^3

Jundroo did get the density right.
You might've got the volume wrong then.

@Venus thanks :)

@MrNarwhal35 haha no problem :)

You have too much free time.... although I will gladly take these measurements to figure out my rocket design :)

@MrTaco yes. Thanks for the upvotes 😊

Must be a rank thing. Only 10 more upvotes till you are blue.@JoshMan

@MrTaco I've updated the post with exactly what you gave me to paste in. Result it just '!'

@AndrewGarrison ... Am I correct?