Beriev SD-MBR - Equipment
The project provided that the crew of the aircraft would consist of three people - the pilot, navigator and operator, who would be accommodated in a single sealed cabin. The armchairs of the crew were supplied with armored posts and armored headboards.
The aircraft equipment was mainly concentrated in the bow compartments of the boat. Most of the volume of the fuselage was occupied by fuel in tank compartments and treaded soft tanks. In the aft part of the boat there was a tank-compartment for pumping fuel in flight. This was required to move the center of mass backward when flying at supersonic speed. In the bow of the boat was located a compartment for the impact aircraft-projectile.
The boat of the seaplane had a great elongation. In the bow of the boat there was a hermetic cabin of the crew. The entire boat was divided into 14 watertight compartments designed to accommodate equipment and fuel. In the middle part of the boat there was a cargo compartment 11 m long, having bottom flaps along the entire length and a deck cover. It was decided to seal the manholes by inflatable rubber hoses.
The wing was all-metal, free-bearing, with a sweep of 600 along the leading edge of the middle part and 350 along the leading edge of the consoles. It consisted of four main parts - two centroplanes and two consoles. The wing design was of the caisson type. The caisson part of the center wing was the fuel tanks. On the wing there were slotted flaps and ailerons. All parts of the carcass and plating had an anticorrosive protective coating. At the ends of the consoles on the pylons floats of the usual riveted construction were installed. The tail of the plane consisted of a swept keel and a controlled stabilizer.
A seaplane hydro-chassis was used on the seaplane. Its main elements are nasal skiing, hydrofoil and aft damping ski. The fore-ski was the front reference point of the hydro-chassis and took up 10% of the load. The air wing was located behind the center of mass of the aircraft and during takeoff and landing perceived the bulk of the external load.
The aircraft was supposed to be equipped with four double-track turbojet engines NK-10. Two engines were installed in the tail section of the aircraft in a common nacelle, the other two - in the gondolas above the wing of the aircraft. The input devices of the engines were supplied with adjustable cones. Fuel and oil supply for all 4 engines was carried out separately, a system of fire fighting equipment and a neutral gas system were envisaged.
The fuel was located in 22 tanks with a total capacity of 186,000 liters (its mass reached 144 tons). Fourteen tanks were in the boat, eight tanks in the wing. Three boat-proof tanks with a total capacity of 17,000 kg were protected against 20 mm shells and fragments weighing up to 25 g. The backbone of the ring provided full fuel production in the event of failure of one or more engines. The fuel system was supplied with equipment automatically providing a certain order of fuel consumption and measuring its quantity in tanks.
On the seaplane, the main power supply system was to be a system of alternating three-phase current with a voltage of 115 V and a frequency of 400 Hz, and an auxiliary system - a system of direct current with a voltage of 28.5 V. Turbo generators are used as alternating current electric power sources, and direct current generators and batteries are used for direct current. With the aircraft being autonomous on afloat, the equipment was powered from a remotely controlled on-board electric generator.
The crew was housed in a pressurized airtight cabin, to maintain constant temperature in the cabin, air was taken from the engine compressors. Workplaces of crew members were equipped with devices for connecting sea-level high-altitude suits SI-5.
The air-thermal de-icing system was installed in the toes of the center wing and keel, the electrothermal system in the tips of the wing consoles, the stabilizer and the air intakes of the engines.
To leave the plane in emergency situations for the pilot, navigator and operator provided for ejection seats, individual means of rescue were supplemented by inflatable boats LAS-5M.
The seaplane provided a system for maintaining the necessary thermal conditions in the equipment compartments and cargo hold. For this purpose, air taken from the engine compressors was used. The oxygen equipment of the aircraft used liquid oxygen, which was stored in two cryogenic vessels of the KZh-30 type. The air-thermal de-icing system had working elements in the toes of the centroplane and keel, the electrothermal system was in the tips of the wing console, the stabilizer and the air intakes of the engines.
For the emergency exit of the aircraft in the air, the crew members had ejection seats. The bailout was made down through the emergency hatches with drop caps in the bottom of the boat. On the seats, in addition to the parachute system, the NAZ-1 portable emergency supplies were located. In addition, an inflatable lifeboat LAS-5M along with a set of additional equipment and two radios ABRA-45M and "Shtyr-A-2" were laid on the plane in a special container.
The control system was electrohydraulic, with independent drives located in the boat compartment at the rear wing spar. The control wiring from the cockpit to the steering gears was hard duplicated.
Flight and navigation equipment provided for combat use of the seaplane in difficult weather conditions at all geographical latitudes, at any time of the day, and included the bomber course system, the Pilot-Navigation system "Path", the star-solar orientator, the central gyrovertical, the center of speed and altitude , navigation machine, autopilot AP 33. All systems were connected with each other and with radio navigation and radar equipment, forming a common flight-navigation system.
The following equipment was provided for the seaplane: the long-distance communication system Planeta, the command UHF radio station Dub-5, the SPU-6 airplane intercom, the Baku C equipment for operation with radio-acoustic buoys, the Okhotsk equipment for sound-signal communication with Submarine for the presence of the seaplane afloat, the Sfera-2 long-range navigation system, the ARC-54B automatic radio compass, the RVU-2 low-altitude altimeter, the RV-25 altimeter, the Vologda blind landing system, the Vesuvius instrument for measuring the length and in height of the drift angle and flight altitude "Wind-2", interrogator "Dyural", warning system for radar irradiation "Sirena-3".
The flight and navigational equipment provided combat use of the seaplane in difficult weather conditions at all geographical latitudes, at any time of the day, and included, in addition to the standard set of systems, a path and flight-navigation "Path", a star-solar orientator, a central hydro-test, navigation, autopilot AP-33. From the radio equipment were provided a long-distance communication station "Planet", a command VHF radio "Dub-5", an airplane intercom system SPU-6. Apparatus "Baku-S" was intended for work with radio-acoustic buoys, and "Okhotsk" - for sound communication with submarines when the seaplane was afloat. There was a long-range navigation system "Sphere-2", an automatic radio compass ARK-54B, radio altimeters of small and large altitudes, etc., as well as special equipment in the version of the scout-pointer.
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