go available	go maintain	go reliable
go concept	go obtain	go respond
go conduct	go piston engine	go reveal
go connecting rod	go power plant	go sonic
go crankshaft	go powered flight	go supersonic
go essential	go pressure	go to be aware
go expansion	go previous	go to deriv
go heat exchanger	go propellant	go to maintain
go internal combustion engin	go pulseje	go turbo(-)fan
go jet	go purchase	go turbojet
go jet engine	go ramjet	go turboprop