ADVANCED SOLAR SOLUTION NETWORK SILAS Wind Sock SOLAR POWERED WIND SOCK Main features: • Water-repellent and colorfast nylon sock, resistant to rot and mildew • White/orange colour; • Metallic structure with covers for protection against dirt and moisture; • Foldable pole with jack; • Weather and corrosion resistant iron construction, coated by polyurethane paint; • Revolving sock frame ASSN provides, according to ICAO recommendations, airport/heliport wind sock for wind strength and direction indication, useful to pilots in flight and on the maneuvering area. The wind sock is illuminated to enable night-time operation and is provided with a red obstruction light. The lights may be powered by a solar kit composed of a battery charged via a photovoltaic panel; this represents the optimal solution for installation in areas not serviced by mains power supply and does not need either site preparation or dedicate infrastructure. The whole structure is treated to withstand severe off-shore (marine) environment. Components • Must (of different height) • Wind sock (of different length) • Red obstruction LED Light • White sock illumination LED light Solar Kit • Solar Panel • Remote Control (option) • Remote Monitoring (option) Two versions for heliports are available: On-the-ground Must height: 4000 or 5600 mm Sock length: 2400 mm Sock fiameter: 600 mm In Elevation Must height: 3000 mm Sock length: 1300 mm Sock diameter: 460 mm Other sizes of must and sock are available upon request. GLOBAL SYSTEM & SERVICE

SILAS Wind Sock Advanced Solar Solution has been established by Gloss following the acquisition of a licensing contract authorizing the industrial exploitation and development of the products belonging to the SCB solar light family, to improve the presence on the reference markets and to attract new potential customers both italians and foreign. Airports Heliports Obstruction lights GLOSS s.r.l. Via R. Piria, 23 00156 Rome (Italy) Tel. +39 06 8901 8902 Fax. +39 06 8901 8902 A