Good point. These are all ICBM-derived rockets that used toxic hypergolic propellants so they could be stored for long periods and launched very quickly. (All h

Good point. These are all ICBM-derived rockets that used toxic hypergolic propellants so they could be stored for long periods and launched very quickly. (All hypergolic propellants are nasty things you don't want to get close to.) The only US rocket on your list is the Titan and it's been retired. AFAIK no current US rockets for routine civilian or commercial use have hypergolic first stage propellants; long storage and quick launch are not required for these rockets.* Happy to be corrected if I'm wrong about that. *Outside the US hypergolic propellants are still used anyway. Apparently the Long March and Proton-M are in this category.