M-13 MSRA: Difference between revisions

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{{Infobox weapon
{{Infobox weapon
| name              = M-13 MSRA
| name              = M-13 MSRA
| image              = File:ILA 2008 PD 446.JPG
| image              = File:M13MSRA.jpg
| image_size        = 300
| image_size        = 300
| alt                =
| alt                =
| caption            =  
| caption            = A MSRA being fitted to the wing of an EF-135 Draken
| type              =  {{wp|Active radar homing|Active radar guided}} {{wp|Air-to-air missile|air-to-air missile}} and {{wp|Surface-to-air missile|surface-to-air missile}}
| type              =  {{wp|Active radar homing|Active radar guided}} {{wp|Air-to-air missile|air-to-air missile}} and {{wp|Surface-to-air missile|surface-to-air missile}}
| origin            = {{flag|Acrea}}
| origin            = {{flag|Acrea}}
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| range              = {{ubl
| range              = {{ubl
  | In excess of 100 km
  | In excess of 100 km
| No-escape zone of 60 km
  }}
  }}
<!-- Explosive specifications -->  
<!-- Explosive specifications -->  
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== Design ==
== Design ==
=== Propulsion ===
=== Propulsion ===
The DAAMR is propelled by a throttleable ducted rocket with an integrated nozzleless booster, which provides the missile with a long range, a high average speed, a wide operational envelope, a flexible mission envelope, relatively simple design, and ease of logistics. The propulsion system consists of four main components: a ramcombustor with integrated nozzleless booster, two air intakes, the interstage, and the sustain gas generator.
The MSRA uses a solid-propellant rocket motor for propulsion. Prototypes included an air-augmented ducted rocket, but subsequent testing found the missile to be too heavy, too large, and lacking in late-stage speed compared to more advanced solid-propellant rockets being developed at the time. Thus, much development in propulsion went into providing for a longer-ranged rocket motor.  


The solid propellant nozzleless booster is integrated within the ramcombustor and accelerates the missile to a velocity where the ramjet can ignite. The air intakes and the port covers which seal the intake diffusors from the ramcombustor remain closed during the boost phase. The interstage is mounted between the gas-generator and the ramcombustor and contains the ignition unit, the booster igniter, and the gas generator control valve. The gas generator is ignited by the hot gases from the booster combustion which flow through the open control valve. The gas generator contains an oxygen deficient composite solid propellant which produces a hot, fuel-rich gas which auto-ignites in the air which has been decelerated and compressed by the intakes. The high energy boron-loaded propellant provides a roughly threefold increase in specific impulse compared to conventional solid rocket motors.
The defining feature of the MSRA is its use of thrust vectoring control. Adopted from development of the M-9 IRSS, thrust vectoring was added to better utilise the TWS guidance features that new AESA radars being designed into the EF-633 and EF-662, and which were being upgraded into the EF-135, were capable of. Focus went into ensuring that the MSRA was able to retain energy as it closed to the target, which in combination with the thrust vector control provides significantly improved performance against hard-maneuvering targets compared to other contemporary radar-guided missiles. This was done to take advantage of the widespread use of AESA radars among Acrean aircraft, which allows for missiles fired while the radar is in TWS to be more accurate and effective than aircraft lacking such radars. The kinematic performance and energy retention of the MSRA was designed to take advantage of this capability, particularly when utilised by 5th generation fighters.


Thrust is controlled by a valve which varies the throat area of the gas generator nozzle. Reducing the throat area increases the pressure in the gas generator which increases the propellant burn rate, increasing the fuel mass flow into the ramcombustor. The mass flow can be varied continuously over a ratio greater than 10:1.
=== Control ===
=== Control ===
A two-way datalink between the missile and the launch aircraft allows the weapon to receive mid-course target updates and even be re-targeted mid-flight. The missile is also capable of being handed off to third-party command, such as from an airborne early warning and control aircraft, allowing the launching aircraft to move to other tasks. The missile is also capable of reporting its status, including its functionality and target information, back to the weapon controller via the datalink.
Being designed with the sensor fusion and data link capabilities of EFX-series fighters in mind, the MSRA has extensive functionality via datalink in addition to its own inertial guidance system. The use of the MSSL data link allows the aircraft to receive mid-course updates to its flight path as well as be redirected to a new target while in flight. Guidance of the missile can be passed off to other aircraft mid-flight using the datalink, and with this method it can also be targeted onto radar contacts obtained by another aircraft even if the launching aircraft itself does not have a radar lock. Terminal guidance is provided by the missile's onboard radar.
 
=== Warhead ===
=== Warhead ===
Terminal guidance for the DAAMR is provided by an active-radar seeker head. The active-radar proximity fuze uses information provided by four antennae symmetrically-mounted around the missile body behind the seeker head to calculate the optimum time and range to detonate the blast-fragmentation warhead in order to achieve the maximum lethal effect against the target.


== Variants ==
== Variants ==
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== Operators ==
== Operators ==
=== Current ===
=== Current ===
* {{flagicon|Ossoria}} '''[[Ossoria]]'''  
* {{flagicon|Acrea}} '''[[Acrean Air Force|Royal Acrean Air Force]]'''
* {{flagicon|Acrea}} '''[[Acrean Navy|Royal Acrean Navy]]'''  
[[Category:Acrea]]
[[Category:Acrea]]

Revision as of 18:42, 11 November 2020

M-13 MSRA
M13MSRA.jpg
A MSRA being fitted to the wing of an EF-135 Draken
TypeActive radar guided air-to-air missile and surface-to-air missile
Place of origin Acrea
Service history
In service2008-Present
Used byAcrea
WarsZemplen War
Production history
DesignerKobalt-Zeiss AG
NordEX Försvarssystemet AB
ManufacturerNordEX Försvarssystemet AB
Specifications
Weight160 kg (350 lb)
Length3.1 m (10 ft 2 in)
Diameter160 mm (6.3 in)

Effective firing range
  • In excess of 100 km
WarheadHigh explosive blast-fragmentation
Detonation
mechanism
Proximity or direct impact fuse

EngineSolid-propellant rocket motor
SpeedMach 4
Guidance
system

The M-13 MSRA (Missil, strids, radar-activ), often called the "Misrah", is an active radar guided air-to-air missile and surface-to-air missile designed and manufactured by Kobalt-Zeiss AG and NordEX Försvarssystemet AB. The missile was designed to achieve the long range, multi-target capability of the previous M-10C DRAAM missiles, while utilising a smaller missile with very high kinematic performance. It was designed in tandem with the M-9 IRSS infrared missile for use with the EF-633 Mako and EF-662 Vampyr fighters, as well as to equip the EF-135 Draken with more capable armament. The missile has an operational range exceeding 100 km. To achieve its maneuvering performance, the MSRA

Design

Propulsion

The MSRA uses a solid-propellant rocket motor for propulsion. Prototypes included an air-augmented ducted rocket, but subsequent testing found the missile to be too heavy, too large, and lacking in late-stage speed compared to more advanced solid-propellant rockets being developed at the time. Thus, much development in propulsion went into providing for a longer-ranged rocket motor.

The defining feature of the MSRA is its use of thrust vectoring control. Adopted from development of the M-9 IRSS, thrust vectoring was added to better utilise the TWS guidance features that new AESA radars being designed into the EF-633 and EF-662, and which were being upgraded into the EF-135, were capable of. Focus went into ensuring that the MSRA was able to retain energy as it closed to the target, which in combination with the thrust vector control provides significantly improved performance against hard-maneuvering targets compared to other contemporary radar-guided missiles. This was done to take advantage of the widespread use of AESA radars among Acrean aircraft, which allows for missiles fired while the radar is in TWS to be more accurate and effective than aircraft lacking such radars. The kinematic performance and energy retention of the MSRA was designed to take advantage of this capability, particularly when utilised by 5th generation fighters.

Control

Being designed with the sensor fusion and data link capabilities of EFX-series fighters in mind, the MSRA has extensive functionality via datalink in addition to its own inertial guidance system. The use of the MSSL data link allows the aircraft to receive mid-course updates to its flight path as well as be redirected to a new target while in flight. Guidance of the missile can be passed off to other aircraft mid-flight using the datalink, and with this method it can also be targeted onto radar contacts obtained by another aircraft even if the launching aircraft itself does not have a radar lock. Terminal guidance is provided by the missile's onboard radar.

Warhead

Variants

Operators

Current