MiG-25 Foxbat ( II )

November 21st, 2013
by andrzej

MiG-25jpg

Description of the structure

 

It seems to me that it would be best to introduce the technical characteristics of this rather unconventional after all machines on the example of the variant MiG- 25PD , currently the only varieties that are used for hunting in the reorganized Russian Air Force. So heavy interceptor MiG- 25PD is basically a single seat , twin-engine grzbietopłatem built in the classical system , with redoubled vertical tail . As mentioned above , the structure of the aircraft is made of 80% nickel steel type WNS -2 , WNS WNS -4 -5 , in 8-9% of titanium and 11% of a special thermal resistant aluminum alloy -type D19 . The system is the strength of the hull tank divided into compartments inside reinforced stringers , zespawanym airtight and filled with fuel. Rails are very densely spaced , at 25 minimetrów places . Hull coating has a thickness of 0.6 millimeters. Received wing cover thickness from 3 mm to 0.8 mm hull at the ends . Most heaters in place of the airframe , especially the leading edges of wings and tail were covered with a layer of titanium. The hull in front of an oval , flattened sides. The air intakes, a more wide cross-section similar to a rectangle , distributed over the front and rear . At the rear of the hull container placed on the parachute . The wing slant 42 degrees at the hull and 4o degrees ‘ at the ends ; trailing edge bevel around 9 degrees. The wings are short and broad , with a lift of negative -5 degrees , two degrees of angle adjustment and the relative thickness of 3.7% in the base of the wing and 4.76% at the end. On the upper surface of each wing is called . aerodynamic ridge on the ends of thin trays of equipment fitted at the same time so . weight against flatterowe . Valves with ventilator can be rotated by 25 degrees to 45 degrees off and landing . Darts swing about 25 degrees. Tail plane plate with a taper of 50 degrees along the leading edge span of 8.74 m and area of 9.81 m2. Swings clockwise or differential ( for longitudinal control in flight at high speed ) . The maximum deflection of the tail along the leading edge is in the range +13 / -32 degrees. The tail surfaces are doubled and parted to the side . They are complemented by two under the aerodynamic hull guides , slant front edge of 54 degrees , the back four steps . The maximum deflection of the rudder is 25 degrees . The machine has an automatic control system SAU- 155P1 , integrated with automatic adjustment of the control ARU- 9 . Chassis support standard three . Shin chassis has dual front wheel measuring 700 x 200 mm , additionally equipped with a fender and pulled forward in the hull. Other main wheels are sized 1300 x 360mm . It is also possible the establishment of the main landing gear skis ( next to the wheel ) . Track of the main landing gear is 3.85 m , and the base chassis – 5,139 m The braking during landing pilot can use two parachutes braking system ( It seems to me that it would be best to introduce the technical characteristics of this rather unconventional after all machines on the example of the variant MiG- 25PD , currently the only varieties that are used for hunting in the reorganized Russian Air Force.   So heavy interceptor MiG- 25PD is basically a single seat , twin-engine grzbietopłatem built in the classical system , with redoubled vertical tail . As mentioned above , the structure of the aircraft is made of 80% nickel steel type WNS -2 , WNS WNS -4 -5 , in 8-9% of titanium and 11% of a special thermal resistant aluminum alloy -type D19 . The system is the strength of the hull tank divided into compartments inside reinforced stringers , zespawanym airtight and filled with fuel. Rails are very densely spaced , at 25 minimetrów places . Hull coating has a thickness of 0.6 millimeters. Received wing cover thickness from 3 mm to 0.8 mm hull at the ends . Most heaters in place of the airframe , especially the leading edges of wings and tail were covered with a layer of titanium. The hull in front of an oval , flattened sides. The air intakes, a more wide cross-section similar to a rectangle , distributed over the front and rear . At the rear of the hull container placed on the parachute . The wing slant 42 degrees at the hull and 4o degrees ‘ at the ends ; trailing edge bevel around 9 degrees. The wings are short and broad , with a lift of negative -5 degrees , two degrees of angle adjustment and the relative thickness of 3.7% in the base of the wing and 4.76% at the end. On the upper surface of each wing is called . aerodynamic ridge on the ends of thin trays of equipment fitted at the same time so . weight against flatterowe . Valves with ventilator can be rotated by 25 degrees to 45 degrees off and landing . Darts swing about 25 degrees. Tail plane plate with a taper of 50 degrees along the leading edge span of 8.74 m and area of ​​9.81 m2. Swings clockwise or differential ( for longitudinal control in flight at high speed ) . The maximum deflection of the tail along the leading edge is in the range +13 / -32 degrees. The tail surfaces are doubled and parted to the side . They are complemented by two under the aerodynamic hull guides , slant front edge of 54 degrees , the back four steps . The maximum deflection of the rudder is 25 degrees . The machine has an automatic control system SAU- 155P1 , integrated with automatic adjustment of the control ARU- 9 . Chassis support standard three . Shin chassis has dual front wheel measuring 700 x 200 mm , additionally equipped with a fender and pulled forward in the hull. Other main wheels are sized 1300 x 360mm . It is also possible the establishment of the main landing gear skis ( next to the wheel ) . Track of the main landing gear is 3.85 m , and the base chassis – 5,139 m The braking during landing pilot can use two parachutes braking system with 60 and 50 m2. On the left ridge kadłubowym founded lowered to the bottom of the boom that hit just before landing on the concrete , and will automatically release the braking parachute . The drive unit are two turbojet with afterburner stacked next to each other in the back of the fuselage. The first prototype was assembled engines R- 15B -300 with the maximum at 73.55 kN ( 7,500 lb ) and with afterburner 100.12 kN ( 10 210 lb ) . The aircraft MiG- 25P was assumed engine R- 15B -300 of the burn-up increased to 109.83 kN ( 11 200 lb ) , and the string without burning remained unchanged. The in-service aircraft MiG -25 used a newer engine R- 15BD -300 . Last manufactured engines R- 15BD -300 had about 1000 hours life . Fuel weighing approximately 15000 kg (depending on modification) contained in the six compartments of the hull , four tanks in the wings and vertical ballasts . there is also the possibility of attaching to the hull of the tank with a capacity of 5280 liters , length of 11.05 m and a diameter of 1.0 m (except aircraft early series ) . The aircraft MiG- 25PD fuel capacity is 14470 kg in internal tanks and 4470 kg in the tank accessories. In the electronic – fighting equipment consists of the MiG – 25PD order: – Doppler radar station Sapfir -25 (also known as S -500 or N -005 ) versions of the RP- 25 , RP -25M or RP – 25mn . It has the ability to detect targets flying against the ground. Detection range bomber type TU -16 flying at high altitude is 10o – 110 km , and the range of automatic tracking of 75-80 km. Against the background of these land values ​​are 27-30 km and 22-25 km). Azimuth observation zone is from 30 to 60 stpni , depending on the mode. In addition, a cone search can be shifted by 56 degrees. In the corner to raise the radar antenna moves 14 degrees , and the axis of observation sector may be inclined by +52 / -42 degrees . The radiolocator Smiercz -A2 used in the earlier Migue – 25P has an automatic target tracking range of 50 km and a detection range for the effective reflection surface equal to 16m2 – 100 km . These data correspond to the target size of the tactical bomber . Gas is looking for target 60 degrees in azimuth and angle of 6 degrees to improve . It can work in two -óch shortwave (2 and 3- centimeter ) . – An integrated complex guidance and navigation ( Russian engineers apparently very delighted in determining the self-created complex electronic components with the word ” kopleks ” ) inspiration -11 , which provides , among others automatic return to the set route with three turning points , returning to one of four preset performance of airports and landing incident to a height of 50 meters . MiG – 25P and MiG – 25PD cooperate with ground guidance system Wozduch – 1M. Guidance on the target can be performed in automatic mode or command at that . In automatic mode, the command of the ground station via the on-board guidance reception apparatus azure ‘ and control system SAU- 155P1 is sent directly to the reins of the aircraft, without the remote control. In command mode at that the same commands are transmitted to the pilot in the form of messages on -board instruments . Additional arrows on indicators of the course, speed and altitude position themselves near the value calculated by the ground system . The purpose of the pilot is to rip the flight to the instructions printed from the ground. This way the pilot is conducted until the capture to the radar board , he takes the initiative further , with possible potential hints of earth. – Other equipment of the machine MiG- 25PD is a standard set of equipment of Soviet fighter aircraft of these years. The equipment includes , among others, Gas active response SO- 69, the device corresponding to the SRO -2N , designed to cooperate with the ground-based radars , as well as the module corresponding to an asking – SRZO -15 complex warning BEACON -3 . Navigation equipment consists of a small amount of radio altimeter RW- 3 and RW -4 , high-altitude radio altimeter RW- 18 and RW -19 automatic radio compass ARK -10 , the receiver signals from MRP- 56P marker , radio- navigation system dog tags close RSBN -6S and the system instrument Landing SP -50 . The aircraft has two radios : R- 832M (for FM ) and R -864 ( to KF ) . The potential battle MiG – 25P and MiG – 25PD is suspended on four arms , placed directly under the wings . It consists of usually four target missiles air-to- air R- 40 in the trendy widely today in aviation Soviet system of several varieties of the same rocket. In the case of missile R -40 ( NATO known as AA -6 ” Acrid ” ) for initial use radar guided variant of the R- 40R and R- 40T heat . Recently, the MiG- 25PD aircraft armament consists of four modernized missile R- 40D versions of R- 40RD and R- 40TD or two missiles R- 40D and four air combat maneuvering missiles R- 60M . as far as I know, the machine interceptor version , due probably to the expected nature of its possible future combat missions , shooting weapons abandoned . the fighter is equipped with automatically lockable in the cockpit . moving part covers leans to the right. aircraft is a single-seat , and the pilot is seated on a chair katapultowanym KM- 1M. with 60 and 50 m2. On the left ridge kadłubowym founded lowered to the bottom of the boom that hit just before landing on the concrete , and will automatically release the braking parachute . The drive unit are two turbojet with afterburner stacked next to each other in the back of the fuselage. The first prototype was assembled engines R- 15B -300 with the maximum at 73.55 kN ( 7,500 lb ) and with afterburner 100.12 kN ( 10 210 lb ) . The aircraft MiG- 25P was assumed engine R- 15B -300 of the burn-up increased to 109.83 kN ( 11 200 lb ) , and the string without burning remained unchanged. The in-service aircraft MiG -25 used a newer engine R- 15BD -300 . Last manufactured engines R- 15BD -300 had about 1000 hours life . Fuel weighing approximately 15000 kg (depending on modification) contained in the six compartments of the hull , four tanks in the wings and vertical ballasts . there is also the possibility of attaching to the hull of the tank with a capacity of 5280 liters , length of 11.05 m and a diameter of 1.0 m (except aircraft early series ) . The aircraft MiG- 25PD fuel capacity is 14470 kg in internal tanks and 4470 kg in the tank accessories. In the electronic – fighting equipment consists of the MiG – 25PD order: – Doppler radar station Sapfir -25 (also known as S -500 or N -005 ) versions of the RP- 25 , RP -25M or RP – 25mn . It has the ability to detect targets flying against the ground. Detection range bomber type TU -16 flying at high altitude is 10o – 110 km , and the range of automatic tracking of 75-80 km. Against the background of these land values are 27-30 km and 22-25 km). Azimuth observation zone is from 30 to 60 stpni , depending on the mode. In addition, a cone search can be shifted by 56 degrees. In the corner to raise the radar antenna moves 14 degrees , and the axis of observation sector may be inclined by +52 / -42 degrees . The radiolocator Smiercz -A2 used in the earlier Migue – 25P has an automatic target tracking range of 50 km and a detection range for the effective reflection surface equal to 16m2 – 100 km . These data correspond to the target size of the tactical bomber . Gas is looking for target 60 degrees in azimuth and angle of 6 degrees to improve . It can work in two -óch shortwave (2 and 3- centimeter ) . – An integrated complex guidance and navigation ( Russian engineers apparently very delighted in determining the self-created complex electronic components with the word ” kopleks ” ) inspiration -11 , which provides , among others automatic return to the set route with three turning points , returning to one of four preset performance of airports and landing incident to a height of 50 meters . MiG – 25P and MiG – 25PD cooperate with ground guidance system Wozduch – 1M. Guidance on the target can be performed in automatic mode or command at that . In automatic mode, the command of the ground station via the on-board guidance reception apparatus azure ‘ and control system SAU- 155P1 is sent directly to the reins of the aircraft, without the remote control. In command mode at that the same commands are transmitted to the pilot in the form of messages on -board instruments . Additional arrows on indicators of the course, speed and altitude position themselves near the value calculated by the ground system . The purpose of the pilot is to rip the flight to the instructions printed from the ground. This way the pilot is conducted until the capture to the radar board , he takes the initiative further , with possible potential hints of earth. – Other equipment of the machine MiG- 25PD is a standard set of equipment of Soviet fighter aircraft of these years. The equipment includes , among others, Gas active response SO- 69, the device corresponding to the SRO -2N , designed to cooperate with the ground-based radars , as well as the module corresponding to an asking – SRZO -15 complex warning BEACON -3 . Navigation equipment consists of a small amount of radio altimeter RW- 3 and RW -4 , high-altitude radio altimeter RW- 18 and RW -19 automatic radio compass ARK -10 , the receiver signals from MRP- 56P marker , radio- navigation system close RSBN -6S and the system instrument Landing SP -50 . The aircraft has two radios : R- 832M (for FM ) and R -864 ( to KF ) . The potential battle MiG – 25P and MiG – 25PD is suspended on four arms , placed directly under the wings . It consists of usually four target missiles air-to- air R- 40 in the trendy widely today in aviation Soviet system of several varieties of the same rocket. In the case of missile R -40 ( NATO known as AA -6 ” Acrid ” ) for initial use radar guided variant of the R- 40R and R- 40T heat . Recently, the MiG- 25PD aircraft armament consists of four modernized missile R- 40D versions of R- 40RD and R- 40TD or two missiles R- 40D and four air combat maneuvering missiles R- 60M . as far as I know, the machine interceptor version , due probably to the expected nature of its possible future combat missions , shooting weapons abandoned . the fighter is equipped with automatically lockable in the cockpit . moving part covers leans to the right. aircraft is a single-seat , and the pilot is seated on a chair katapultowanym KM- 1M.

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