[ELI5] Why do attack helicopters carry anti-personnel rockets when they have the chaingun?

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In almost every picture or video you see of an apache, viper, hinde, or any other helicopter gunship, they have anti-tank/anti-armor missiles (i.e. hellfires/TOWs) as well as few dozen antipersonnel rockets like hydras. Why do they not use carry half as many hellfires as they can carry in lieu of rockets? Isn’t the chaingun designed to perform the same function of taking out troops and light armored vehicles? Why not double the payload of AT weapons instead?

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Anonymous 0 Comments

Because having more options in a fight usually isn’t a bad thing.

First, they are two wildly different weapons, a hydra rocket has an effective radius like 2-4 times that of the typical explosive ammo used in the guns. So one rocket packs the same punch as a several second burst from the gun.

Which leads to the second thing, you can use the rockets in ways where the gun isn’t as effective. For one, the gun is limited in its range of motion, it generally has to fire downwards, meaning that to use it effectively the helicopter has to be higher up off the ground. Which leaves the vehicle more exposed. It is also harder to actually accurately shoot the gun while flying fast and low over the ground. Again because of that limit range of motion.

Rockets on the other hand fire forwards, so you can still fire them as you’re moving fast over the ground. And since again they have a bigger boom, it’s easier to saturate a target quicker before then getting out of dodge.

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