LNorbert

Okay. Please click on the wiki button on top of the page. Type into the search bar: "Liquid fuel". Look at the right side under the image. Oh wow 5kg/l. Now same procedure but solid fuel. Again wow 7.5kg/l (should be 7.5g/cm^3). It uses the metric system. So I think your way of talking is the only thing here that makes no sense.

Hi Everyone! So I been doing research all around and I couldn't find anything that even resembles the fuel... It might be because I only looked at one aspect which is density. There is no monopropellant that even aproches the 5kg/L density and no fuel that is 4kg/L dense either. Plus the oxidizer is the same density as the fuel. LOX for example is 1.141kg/L. Kerosene (Common first stage propelant) is from 0.78kg/L to 0.81kg/L. Liquid hydrogen is 0.07kg/L. Hydrazine (Most common monopropellant) is only 1.012kg/L. I am really interested if anyone found somekind of similarities with real life fuels looking at any kind of aspects. Have fun everyone! And thanks in advance for any replies on the topic.

Well only mostly... The Isp values do show similarities but then take that in account that methane is far from 4 kg/L. (assuming that they use the metric system in KSP) Neither does the LOX have 4 kg/L only 1.141kg/L.