Demetrious
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Joined: 4/22/2016
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quote:
ORIGINAL: emsoy
Yeah this is intended behaviour, it is primarily an ARM weapon.
How do you think it should work?
Secondary ARH anti-ship role? Is it used as that operationally?
Anyone got reliable info on this?
quote:
ORIGINAL: Grazyn
Wiki says the radar is just there to provide terminal guidance, and you can test for yourself how this makes it different from a simple HARM. The HARM will likely miss its target if they turn off their active radar (especially if it's moving like a ship), the AARGM will use its millimeter wave radar to find and home on the target anyway.
Ooooh, I see what happened. The AARGM actually has a non-radar strike capability enabled by a GPS/INS midcourse guidance, using the millimeter-wave radar for terminal targeting: [source]
quote:
The AGM-88E is equipped with an advanced multi-sensor system comprising a Millimetre Wave (MMW) terminal seeker, advanced Anti-Radiation Homing (ARH) receiver and Global Positioning System/Inertial Navigation System (GPS/INS). The system can quickly engage traditional and advanced enemy air defence targets as well as non-radar time-sensitive strike targets.
The missile receives tactical intelligence information through an embedded Integrated Broadcast System Receiver (IBS-R). The IBS delivers situational awareness information and second source confirmation for the war-fighters. The missile transfers real-time weapon impact assessment reports. It offers extended-range engagement, as well as organic, in-cockpit emitter targeting capability, and situational awareness.
This is a pretty useful feature - it makes the weapon a general-purpose, medium-range high-speed ground strike weapon, which the US was lacking before.
A few more sources:
[Orbital ATK's own brochure] This is interesting, as it specifies the missile's standoff strike ability uses "GPs/INS point-to-point or point-to-MMW-terminal guidance." (MMW == millimeter wave, natch.) It also re-iterates the separate time-sensitive strike mission as distinct from DEAD.
[Naval Air Systems Command:]
quote:
AARGM baseline capabilities include an expanded target set, counter-shutdown capability, advanced signals processing for improved detection and locating, geographic specificity providing aircrew the opportunity to define missile-impact zones and impact-avoidance zones, and a weapon impact-assessment broadcast capability providing for battle damage assessment cueing.
The AARGM is apparently an upgrade kit applied to existing AGM-88Cs by replacing the nose/seeker portion with a "HARM Control Section Modification." These things are expensive, (what with the radar, datalinks, and so forth,) which is presumably why the military is augmenting their arsenal with modified rounds, but not upgrading the entire extensive stockpile (as the NavAir link mentioned.) Most scenario designers seem aware of this and usually give you a number of AARGMs, backed up by significantly more older HARMs. Thus, when selecting loadouts you have to carefully consider things - the HARMS are available in quantity for SEAD, but the AARGMs are more capable against targets not requiring saturation/multiple threat vector attacks, and also have a flexible engagement ability against annoying non-radar pop-up targets (like that one MANPAD team scenario designers like to plunk down on airbases.)
The general strike ability is an inherent ability of the weapon, but it's still primarily a DEAD weapon - everything that makes it capable of striking a non-radiating target also enhances its DEAD mission (instead of relying on its own memory and anti-rad seeker, it can receive geolocation data from the Growler that launched it, supporting Rivet Joints, etc., and navigate to those co-ordinates via GPS, for instance.) So operationally it's still a SEAD/DEAD loadout only; the secondary strike ability is a nice bonus.
The database entry for the weapon is 100% correct as far as I can tell, it has the proper target set and even the GPS/INS navigation, so this might simply be coded behavior attached to the passive radar seeker ending up as the weapon's default logic. The LRASM also has a passive radar homing ability (i.e. a passive seeker sensor in its database entry) so it might be affected as well. I'll test it.
EDIT:
quote:
ORIGINAL: Cik
i think there is a problem(?) with detection by airborne radars against non-ship targets in general.
He's right. I'll post a separate reporting thread for it with a .scen file to demonstrate the issue.
< Message edited by Demetrious -- 11/17/2017 6:37:44 PM >
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[FIXED DB v473] AGM-88E (AARGM) cannot engage proper ta... - 
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