-------------------------------------------- On Sun, 9/14/14, Monroe L. King Jr. <monroe@xxxxxxxxxxxxxxxxxx> wrote: > Which is a big reason I don't much care for the way self pressurized hybrids > fly. I know they can't possibly be efficient. (Unless fuel flow is > controlled by oxidizer flow) Yeah, that's how hybrids work. Fuel regression rate is controlled by oxidizer mass flux. Ad Astra, Ray