I guess the ultimate solution would be to design a bypass turbo fan, with enough 'go' to supply all the nozzles, and vectoring nozzels continuously, and then close the vectoring nozzles to make a control input, as opposed to opening it, hence causing more thrust available to the other vectoring nozzles. This way I guess you wouldn't have to worry about hight loss due to thrust reduction on opening a vectoring nozzles, as Eddie discussed earlier. I'm just guessing on that principle, and it would require quite a powerful turbo fan, to overcome all duct losses. Mind you Pegasus's turbofan sounds like it is there already, with 40lb on tap.

I would just like to say that your Harrier project is mind blowing, and if you pull it off, you are the man!!!

Great stuff

Guy