Rotary supports
OPM-360R
It is intended for installation of acoustic radiators onto KS-01 switch rack as well as onto various tripods, racks, and watchtowers with bore diameters of 35 mm. There are design versions intended for installation of one to eight radiators. The structure of OPM-360R makes it possible to choose the type of radiators when fastening: with a horn or without it and to exclude a possibility of vertical rotation during operation.
The mechanism ensures 360° rotation of a radiator in a horizontal plane and 100°-180° rotation in a vertical plane depending on the design version.
OPM-540
Rotary support for installation and fastening of a unit consisting of four radiators, without additional horns, onto a car. It ensures location of radiators with a rotating device actuator on a standard baggage compartment. OPM-540 is a welded structure made of 25x40 mm steel profile. It is intended for operation with an electromechanical rotating device providing for remote selection with visual monitoring of radiation direction from passenger compartment. It makes it possible to use a rotating device with rotation angle up to +180° / - 270
OPM-240
Rotary support for installation and fastening of a unit consisting of four radiators, with additional horns, onto UAZ Hunter or other cars. It ensures location of radiators with a rotating device actuator on a standard baggage compartment.
OPM-240 is a welded structure made of aluminum alloy. It is intended for operation with an electromechanical rotating device providing for remote selection with visual monitoring of radiation direction from passenger compartment. It makes it possible to use a rotating device with rotation angle up to ± 120°
OPM-MI17
OPM-MI17 rotary support is intended for installation of five AI-300 acoustic radiators onto MI-17 (MI-8) helicopter. The support fits perfectly in a standard hatch located in the bottom and does not require changes of helicopter structure. Thus installation of the device takes a few minutes and does not require special tool or skills.
The mechanism components are made of AMG-2M aluminum alloy five mm thick, welded with the use of argon welding and are lightweight to maximum extent/
OPM-MI17 has several locked positions of a package of radiators. In initial (upper) state, radiators do not go beyond helicopter hull and look vertically downwards. This position of the mechanism is required for helicopter take-off, transportation of radiators for long distances, and for signal and message transmission vertically downwards when a helicopter hovers above a required facility. The other positions of OPM go beyond limit sizes of helicopter hull and make it possible to position AI-300 at a required angle towards ground. Minimum angle of fixation of 5° makes it possible to transmit signals for a distance of 2 and more kilometers at flight height of more than 150 meters. Large radiation angles in relation to ground surface are intended for lesser ranges and can be adjusted 10°- or 15°-fold.
Adjustment can be performed by one person during flight from helicopter cabin.
The most efficient transmission is achieved at a distance from 400 to 1000 meters as noise level caused by helicopter is already reduced while radiator volume is still high enough. Transmission at the distances is achieved by adjustment of a rotary support at an angle from 30° to 15° between radiation direction and ground surface at flight height of 150 — 200 meters.
Inside a helicopter rotary support shall be covered with a light enclosure to prevent noisy sounds or air flows entering from under a rotor.
