“Madec” Si&Si “Madec” Si&Si deflector, reduces blast speed up to 90% and redirects upwards (nearly vertical). It also
accomplishes ICAO (International Civil Aviation Organization) recommendation on minimum visibility through it. So that users can see and prevent
every possible excessive approach of the planes
itself or other vehicles.
Our blast fences are designed, built and proved for
- wide-body aircraft types.
- Jet blasts speeds ranging between 50 and 60 m/s and temperatures up to 60°C.
Data regarding planes and also location and conditions behind every deflector are taken into consideration in its design, manufacture and assembly
in order to provide the adequate degree of protection.
Tolmien and Göertler models are considered in determining the jet blasts characteristics, because both have been widely confirmed for the jet engines gases unload on a flat and rough surface, as it is a non-paved soil.
Upwards deviation of the horizontal jet blast coming out from a plane engine interferes the part of the flow that eventually passes above the fence and so mobilizing air masses that deviates cool down and decelerate the jet blast.
- The fence effect depends closely of its distance to the engines and the power regime of these ones.
The aerodynamical behaviour of the deflector has been analysed in the Test Bench for Aeronautic Engines Development of the Spanish National Institute of Aeronautical Techniques (INTA). It was proved that jet blasts fulfils the stable and laminar flow requirements once they have passed the deflector mesh cell.