Airborne apparatus for ground erosion reduction

摘要

Apparatus for reducing ground erosion caused by impinging hot jets (2) such as the lifting jets of VSTOL aircraft or rockets, said jets emanating from a hot jet nozzle (1) such as a lift engine nozzle or a lift/propulsion engine nozzle, comprising means for introducing a coolant fluid (7) to an impingement surface immediately beneath the turning zone.