RandomAwesome8

Hi, I am fairly new to the forums but I have been playing KSP since June, I have created and scraped thousands of designs because they would never end up where I want them to go. I then found out that there is math to find out what you need to get to your destination. But I have no damn clue what they are and how to do them. If you could kindly post those equations, also please post some ships that I could use to get to the different planets of 0.17! Thanks in advance!