Peace and Terror
28-08-2004, 04:45
*Now Available For Sale*
LRM-1N Anti-Ship Missile
The LRM-1N was developed by P&T Maritime Aviation as an over-the-horizon weapon for use against well-defended battlegroups, replacing the less effective Tomahawk Anti-Ship Missile (TASM). The range requirement demanded a subsonic turbojet, but either stealth or high-speed was needed to penetrate the enemy fleet defenses.
After several false-starts, P&T’s scientists hit on a combination of the two: the main stage of the missile would be highly stealthed while a second stage powered by a ramjet would provide Mach 3.5 terminal speed. To keep costs down, the shell of the Tomahawk would be used for the first stage, equipped with a newer high-efficiency engine.
After launch the LRM-1N climbs to its cruising altitude and activates the generators for its plasma stealth system. This cloaks the missile in a layer of ionized gas that absorbs the vast majority of radar energy directed at the missile, reducing its already small radar cross-section. While the plasma layer heavily increases the missile’s IR and optical signature, P&T’s engineers believed the high altitude and long-range from the target would prevent detection. Because the plasma also blocks the missile’s own radar, guidance is primarily inertial. At irregular intervals the plasma layer is dispersed while the missile activates its wideband ESM receiver. The ESM receiver is programmed with up to 10 radar profiles in a priority list that can be changed at any time before launch.
Guided by the ESM receiver and inertial system, the LRM-1N arrives within 20km of the target. At this point the plasma layer is allowed to disintegrate, starting with the nose. The radar there locks on to either one of five pre-selected target radar profiles, or the largest radar return within range. The second stage then accelerates the 300kg warhead and its radar guidance package to Mach 3.5 and dives on the target area. The warhead damage is compounded by the kinetic energy of the missile and resulting fuel explosion. When used against a carrier battlegroup, the carrier’s wide deck provides both a significant radar return and a vulnerable target for the diving warhead.
Production is carried out by DCA Industries (http://tncforums.proboards34.com/index.cgi?board=DCA)
Statistics
Length: 5.25m (primary stage), 0.69m (booster), 2.02m (terminal stage), 7.96m (overall)
Diameter: 51.81cm
Wingspan: 2.67m
Weight: 1650kg (with booster)
Speed: 800 km/h (primary stage), Mach 3.5 (terminal stage)
Warhead: 300kg HE
Guidance: Inertial/ESM with active radar (terminal)
Range: 880km (primary stage), 20km (terminal stage)
Cost: $2.75 million per missile
The LRM-1N can be used from ground or naval launchers, as well as by the Tu-22M5 and B-52 of P&T Maritime Aviation. Each Tu-22M5 can carry one LRM-1N in place of a Kh-22, for a total of three per plane. Each B-52 can carry twelve on external pylons.
[OOC: IC and OOC comments welcome. For more information on plasma stealth see http://www.aeronautics.ru/plasmamain.htm]
LRM-1N Anti-Ship Missile
The LRM-1N was developed by P&T Maritime Aviation as an over-the-horizon weapon for use against well-defended battlegroups, replacing the less effective Tomahawk Anti-Ship Missile (TASM). The range requirement demanded a subsonic turbojet, but either stealth or high-speed was needed to penetrate the enemy fleet defenses.
After several false-starts, P&T’s scientists hit on a combination of the two: the main stage of the missile would be highly stealthed while a second stage powered by a ramjet would provide Mach 3.5 terminal speed. To keep costs down, the shell of the Tomahawk would be used for the first stage, equipped with a newer high-efficiency engine.
After launch the LRM-1N climbs to its cruising altitude and activates the generators for its plasma stealth system. This cloaks the missile in a layer of ionized gas that absorbs the vast majority of radar energy directed at the missile, reducing its already small radar cross-section. While the plasma layer heavily increases the missile’s IR and optical signature, P&T’s engineers believed the high altitude and long-range from the target would prevent detection. Because the plasma also blocks the missile’s own radar, guidance is primarily inertial. At irregular intervals the plasma layer is dispersed while the missile activates its wideband ESM receiver. The ESM receiver is programmed with up to 10 radar profiles in a priority list that can be changed at any time before launch.
Guided by the ESM receiver and inertial system, the LRM-1N arrives within 20km of the target. At this point the plasma layer is allowed to disintegrate, starting with the nose. The radar there locks on to either one of five pre-selected target radar profiles, or the largest radar return within range. The second stage then accelerates the 300kg warhead and its radar guidance package to Mach 3.5 and dives on the target area. The warhead damage is compounded by the kinetic energy of the missile and resulting fuel explosion. When used against a carrier battlegroup, the carrier’s wide deck provides both a significant radar return and a vulnerable target for the diving warhead.
Production is carried out by DCA Industries (http://tncforums.proboards34.com/index.cgi?board=DCA)
Statistics
Length: 5.25m (primary stage), 0.69m (booster), 2.02m (terminal stage), 7.96m (overall)
Diameter: 51.81cm
Wingspan: 2.67m
Weight: 1650kg (with booster)
Speed: 800 km/h (primary stage), Mach 3.5 (terminal stage)
Warhead: 300kg HE
Guidance: Inertial/ESM with active radar (terminal)
Range: 880km (primary stage), 20km (terminal stage)
Cost: $2.75 million per missile
The LRM-1N can be used from ground or naval launchers, as well as by the Tu-22M5 and B-52 of P&T Maritime Aviation. Each Tu-22M5 can carry one LRM-1N in place of a Kh-22, for a total of three per plane. Each B-52 can carry twelve on external pylons.
[OOC: IC and OOC comments welcome. For more information on plasma stealth see http://www.aeronautics.ru/plasmamain.htm]