tsts4
Pattern Altitude
Well it comes back to wanting to launch in the same direction as the Earth’s rotation (doesn’t have to be at the equator— an equatorial launch just lets you do a little more with less, so to speak) and doing so from VAFB puts a lot more folks at risk, particularly in the early days of the space program. It’s not that you can’t launch westward (I launched a MinuteMan III ICBM aimed at Kwajalein from Vandy) but you take a huge hit in range performance compared to the same payload and fuel going eastward. The non-ICBM launches from VAFB are typically polar orbits.