Client:
Piaggio & C.

Type of silencers:
2 silencers systems consisting of:
1 Reactive silencer (double-chamber resonator)
Ø2,300 Length 3,800mm
Stainless steel 316L th. 4mm
1 quarter wave resonator silencer (treatment of a 16Hz frequency)
Ø400 Length 7,000mm
Stainless steel 316 L th. 2mm

Goal of silencers:
Eliminate aircraft noises emmitted at low frequencies by combustion phenomena

Connected to:
2 stacks Ø1,200 mm Height 14m (manufactured by Beirens)

Generator:
2 steam boilers of 20T/h each

Commissioning:
March 2009