HELICOPTER FIRE FIGHTING COMPLEX WITH VSU-15 WATER DISCHARGING DEVICE ON THE EXTERNAL SLING IS DESIGNED FOR:

• extinguishing and localization ot fires in tundra, steppe, forest-steppe, forest and mountain regions;
• extinguishing and localization of industrial and domestic fires;
• delivery to remote and difficult of access regions to fire sites of mobile fire fighting service stations, wheeled and non-wheeled vehicles as well as paratroopers of fire fighting services.

   VSU-15 water discharging device on the external sling allows to perform intake of water, intended for fire fighting, in hovering mode from any kind of water reservoirs, including shallow ones.

   Control of water intake and discharge is performed from the operator's remote control. When necessary the VSU-15 water discharging device can be quickly disconnected and the helicopter can be used for transportation of personnel and equipment.

HELICOPTER FIRE FIGHTING COMPLEX INCLUDES:

• VSU-15 water discharging device;
• External sling providing transportation of VSU-15 and control of water intake and discharge;
• Sattelite navigation system;
• Thermal vision unit;
• Radio for communicaton of the crew with ground fire-brigades;
• System of chemical admixtures dosage.

PERFORMANCE

Performance of Mi-267 helicopter with VSU-15 
corresponds to performance of the basic Mi-261 helicopter

    Regulated volume of the supplied water, m3 ........7; 8; 9; 10; 12,5; 13,5

    Maximum volume of VSU, m3.............................................................. 15,0

    Regulated volume of VSU, m3.................................7; 8; 9; 10; 13,5; 13,5

    Length of slings, mm .........................................................................6500

    Height of tank, mm ........................................................................... 3000

    Diameter along upper rim, mm.......................................................... 3100

    Diameter of discharging cylinder, mm.................................................. 600

    Time of water intake, 15 m3 sec (not more than) ................................. 10

    Rate of water discharge, m/s................................................................ 1,0

    Weight of VSU-15, kg .......................................................................... 250

    Speed of helicopter flight when discharging water, km/h ............. 0 ... 120

    Speed of flight with VSU-15 tank (VSU with water), km/h .......... Up to 180

    Speed of flight with VSU-15 tank (VSU without water), km/h .............. 200

    Flight altitude when fire extinguishing (from VSU), m............ from 20 to 60

Dimensions of watered strip at flight speed 30 km/h, H=20 m

    width, m............................................................................................... 12,2

    length, m..................................................................................... 125... 330