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frederf

External Hellfire Racks

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If you use Mando Missile, getting these two flight profiles is quite easy: Initial mode 0, active range 600, cruise alt 300 for LOAL HI. Same with cruise alt 40 for LOAL LO, and just mode init 2 and active range 5000 for a direct aproach. In any case, below 10 secs endurance and 4 or above acceleration factor.

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As far as I can tell, pretty much each of the 4 modes (LOBL, LOAL-DIR, LOAL-HI, LOAL-LO) all have about a 400m arch to a 1-2km target. The main difference is in when the missile acquires the target which is determined by when the laser is turned on.

LOBL turns the laser on before launch.

LOAL-DIR turns the laser on long after launch.

LOAL-LO turns on the laser moderately after launch.

LOAL-HI turns on the laser shortly after launch.

The trajectory choice is simply determined by when the missile gets the laser signal that tells it to deviate (climb) from its normal flight path. The flight path of the missile after acquiring the laser signal is not direct to the target, however, but will continue on its assigned altitude profile (hard coded in the case of the A, programmable in the case of the K and L models) until the target is closer and will then turn downward to hit from nearly overhead (85 degs or so) straight down.

Mando, do any of your missile scripts have a missile acquire or lose their target in mid flight? If not then the distinction is purely academic.

The AGM-114A needs an active laser target the entire journey and cannot reclaim a laser track once lost.

LOBL: The Hellfire must take a trajectory up to a given altitude and level off above the platform altitude based on the distance between the platform and the target while keeping the laser locked for left-right guidance until the target is a certain relative nose-down to the seeker and then dive down on top of the target. If the laserLock is lost at any time, the missile must go dumbfire.

LOAL (DIR, LO, HI): The hellfire must take a trajectory forward up to its assigned altitude. When the laser is turned on it must adjust its altitude higher in keeping with the standard LOBL approach (or similar) as normal.

The AGM-114K needs an active laser target the entire journey, can possibly reclaim a laser target once lost, and has a fancy navigation system that helps it fly a programmed optimal altitude profile.

The AGM-114L is completely fire and forget, traveling to the programmed target location and finding it itself once there. Same other features as the K model.

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The Hellfire modes and different model differences are not trivial. The LOAL modes are really only useful if the AH-64 has a mast-mounted laser or has a remote designator for the missile. All other times the AH-64 needs to be exposed to lase the target anyway, so there's no point is accommodating some sort of terrain mask to conceal launch.

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Mando, do any of your missile scripts have a missile acquire or lose their target in mid flight? If not then the distinction is purely academic.

Yes, for the scripted laser targetting, the target itself is a gamelogic. For example, in the case of the TOW (which is not laser guided), that GL is placed a bit ahead of the missile, but the launcher is able to steer the GL position so the missile will gide towards a moving target (the GL). You may just put the GL way ahead of the launcher and at the desired cruise altitude initially (as in the case of the TOW), but do not change its position until so indicated by the firing unit. So, initially the missile will climb to cruise altitude and will fly towards a point far away of the launcher and following the firing direction of the launcher. At some point (activated by the launcher), the GL is placed in the laser spot and the missile will dive for the final hit. In the middle of the light, you may deactivate the GL and the missile will simply lose the track but, if you activate the active guidance placing the GL over the laser spot too late, the missile will, more than probably, lose the track too, or, even having the target inside its own seeker cone, it might be unable to maneouver in time to hit the target. It is all a matter of tunning the firing parameters.

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Is this the desired LOBL effect?

Hehe, nice stuff you have there at youtube. Also speaking of the other videos smile_o.gif

Already thought about joining up with RKSL? The HMD is very nicely done!

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That looks lovely Mando. The "direct to target" Hellfire is complete fiction on BIS's part. All Hellfire shots arch like that to some degree.

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