Does the HARM not loft in HAS mode?

[LieutenantFalcon]

Title, pretty much.

 

What I've seen the HARMs do is this: fly straight for a second or so after launch, then fly 100% straight to the target. It is in accordance to what Wags has shown. No arc down onto the target, no parabolic flight from launch? I know the FOV is limited and you have no real range data, but the Hornet with TOO mode doesn't seem to care about these limitations either?

What gives? I can't seem to get a good answer, but is this how it actually works?

[ricktoberfest]

Title, pretty much.

 

What I've seen the HARMs do is this: fly straight for a second or so after launch, then fly 100% straight to the target. It is in accordance to what Wags has shown. No arc down onto the target, no parabolic flight from launch? I know the FOV is limited and you have no real range data, but the Hornet with TOO mode doesn't seem to care about these limitations either?

What gives? I can't seem to get a good answer, but is this how it actually works?

 

 

They’ve said the Hornet HARM was simplified just to get it in the sim so you can’t compare it to that. If it has no range data then it has no way to know if it should loft so it doesn’t.

 

 

Modules: A10C, F5, F14, F16, F18, F86, AV8B, UH1, Mi8, Ka50, FC3, Supercarrier, CA, P47, P51

[Harker]

The Hornet's TOO mode was indeed working correctly at some point - with the HARM going straight for the emitter, but it's been broken for some time now.

[Pikey]

There's no distance data so the computer cannot prepare a lofting plan for the missile, so what you see makes sense. I think vairous issues beforehand with Hornet have been all sorts of incorrect lofting, shooting passed the target behaviours. In my mind i'm anticipating the non distance formats to all be no loft profiles.

[Frederf]

FOV on HARM is not small at all. They have about 120° off axis ability. Their ability to traverse their antenna dishes is huge.

 

Maverick arcs toward target too. It has a G-bias based on estimated range and manages angular bias based on angle and angle rate. Small angle rate = far from target = more angle bias allowed so it can fly above. Large angle rate = near to target = less angle bias allowed.

 

HARM should be the same. It knows angle and angle rate so it should be able to apply the same logic. AGM-45 Shrike was pretty stupid but -88 is a lot smarter.

 

Does this TOO flight path look straight or curved?

[GGTharos]

^^^^

 

The antenna on the HARM is fixed and omnidirectional. It's actually multiple antennae wound into a spiral with increasing width, which allows it to receive multiple frequencies from all sides at a very wide angle.

 

There is an image of AARGM with a dish, but that dish is the MMW radar. The ARM antenna sits behind it, it's the 'dig-toothed' structure - that's my understanding of this guidance type anyway.