DP-65 small-sized remote-controlled anti-grenade launcher (designation MTU Navy 98U) was created at the turn of the 1990s, the state scientific-production enterprise "Basalt" based on the seven-grenade MRG-1.
DP-65 complex was adopted by the Russian navy to protect ships from attack combat divers in the outer roads, open anchorages and team sites, for protection against attacks of underwater combat swimmers at waterworks, offshore platforms and other important marine and coastal facilities. DP-65 is set directly on the floating objects, and on shore.
The structure of the DP-65 complex includes a 55-mm grenade launcher desyatistvolny to launch rocket-propelled grenades, Remote Control, Power Supply, mechanisms for vertical and horizontal guidance with a set of end fittings.
Unlike MRG-1 DP-65 grenade equipped with mechanisms for vertical and horizontal guidance, so that it can be induced to the target from the control panel remotely from a distance of up to 100 m. With the remote control is also carried out and shooting: alternately from each of the 10 trunk or volley. Moreover, the remote control allows you to turn control four grenade launchers.
Guidance complex DP-65 shooting and control is done remotely or manually. In manual control mode, launch grenades carried out an autonomous power supply. The control panel and power supply allow simultaneous connection of one to four grenade launchers.
For detection purposes grenade launcher DP-65 equipped with sonar standpipe 747, that works in any direction around the station at a range of 400 m. Sonar "ANAPA-ME" when used in conjunction with PD-65 provides automatic detection of underwater targets, its classification and maintenance of constant guidance to the point of firing a grenade launcher.
DP-65 complex is provided with locking devices, ensuring the safety of the charging and discharging grenade, blocking the firing circuits in areas, banned for shooting.
Shooting from a grenade being reactive 55-mm high-explosive grenades RG-55M, which resemble miniature depth charges, and consist of a jet engine with an annular stabilizer and a warhead fuze with. The front part of the fuse has the shape of a truncated hemisphere, thereby avoiding grenades bounce when they hit the water. Fuse, which operates at all angles of approach grenades to water, It has several installations depth of undermining, manually set a special key before loading the grenade into the barrel. Explosive fragmentation grenade strikes effectively combat swimmer in a radius of 16 m throughout the range of depths, where it is possible to find. Especially effective firing a volley of pre-detected target. In this case, the affected area is increased tenfold.
Upon cancellation sonar signal reactive garnet GDS-55 may be used to indicate the location of detected diversionists, DP-65 is included in the complex ammunition. According to its weight and size characteristics and the firing range is similar to the RG-55M. In contrast, the, the head portion includes a signal grenade fuse instantaneous, -lifting charge igniter and pyrotechnic torch. At a meeting with the water head of the grenade body is divided into two parts, releasing the pyrotechnic torch, a spring which is pushed out of the housing, and floats on the water surface is lit bright red flame least 60 from. Shooting at the target lesion being grenades RG-55M on the burning torch signaling grenades, which is the benchmark. Starting jet engine garnet performed by electric spark through a bus contact on the annular stabilizer.
Small-sized remotely controlled grenade launcher DP-65 can be operated in areas with cold-temperate and tropical climates.
With dimensions 970, 780 and 1820 mm in length, width and height, respectively, does not exceed the weight of the grenade launcher 132 kg, Remote control weight - 30 kg, the mass of the power supply - 46 kg. Grenade can be induced on purpose in vertical (from -33 to +48 °) and horizontal (+165 °) planes with at least 10 and 15 ° respectively. The maximum firing range is 500 m, bezrikoshetnoy minimum at the height of the grenade launcher above the water surface 1,5 m - 50 m. Power consumption from the AC mains voltage 220 The frequency 50 Hz is 0,5-1 kW.
Compared to peers, DP-65 complex has a more optimum performance on the firing range of 50 to 500 m. In this case, the small weight and size allow it to clean in the utility room in the voyage and use the DP-65 to the ship docked in a dangerous place.
However, along with high combat qualities of the DP-65 has one significant drawback, which is more often seen on ships and ships of small displacement. Thus the drawback is the presence of a treasury cut grenade launcher barrel in radius to 30 m danger zone, formed as a result of jet engine grenades. In this area it is impossible to find people, instruments and responsible units and mechanisms should be protected with heat-resistant housings. Run these restrictions is not always possible, resulting in a grenade firing angle range is sharply reduced.
Production of PD-65 is a compact remote-controlled grenade launcher has been established at the Russian plant in the name of. A. Degtyareva.
DP-65 tactical and technical characteristics of the system
Caliber: 55 mm
Number of trunks: 10 PC
Unit weight (no grenades), kg: 132
Height: 1820 mm
Width: 970 mm
Length: 780 mm
Number of trunks: 10
angle HV, city: -33 … +48
Ugol GN, city: -165 …+165
BH speed, city / a: 10
GN speed, city / a: 15
firing range, m: minimal – 50, maximum - 500