A newly rebuilt engine from a supersonic fighter is put to the test at the S&S / Maddex test cell.
This engine has low smoke fuel nozzles and combustors.
The large cloud is is a mist of unburnt fuel, caused by the afterburner ignition not functioning.
Fuel consumption is about 35-40 gallons per minute at full dry power, and the afterburner adds about 50 to that number.
Testing A Ge J79 With Afterburner