MIflyer
1st Lieutenant
But we are not worried about the early Scuds but the ones that have proliferated. And the biggest proliferator of the Scud, North Korea, does not have a lot of oil available and so they use petroleum distillates. When the USAF launched Scuds as targets, that is what they used.Early Scud's (R-11) used T-1, or RG-1
And as someone who was heavily involved in the USAF Thor and Atlas programs, I am amused to see the "old" LOX/RP-1 attaining dominance over the the "more advanced" propellants such as A-50 and N2O4, which are not only much more expensive, but are far more hazardous and have a lower ISP was well.