Working with TamJets, we developed a vectored thrust system for our F-22. Each nozzle rotates on 4 ball bearings. Nozzles can work in unison or separate. Two 100 ounce servos are required. If this is a retro-fit, you may have to get your bifurcated exhaust shortened. Each nozzle will deflect 15 degrees up or down. More photos available so send us an email to sales@centuryjet.com