HH65A question

Look like some sort of wind sensor.

No, it's on top of the fairing. There is a shaft that looks to be about the same diameter as the rotor shaft, then it reduces and has two rods with flat squares sticking out on either side. I have noticed the same device on the AH-64 (not the longbow). It spins with the rotor.

Lloyd Curtis Call the ball

The device on the top of the AH-64A mast is (according to World Air Power Journal #29) a Sperry-built air data sensor. Monitors air temperature, pressure, and velocity.

there is a new target finder that sits over the rotor on attack helios. that way you don't have to expose the aircraft, just hide behind a hill with the pod looking .

That must be it. Sounds reasonable anyway.

Thanks guys

Lloyd Curtis Call the ball

You are right about the AH-64A - that being the Air Data Sensor. It is turned on by a separate switch from the front seat and spins on its own. Once the Fire Control Computer is on, the ADS feeds wind info to the computer so the aircraft can compute and compensate for balistic solutions on the unguided rockets and 30 mm cannon - but it does not take into consideration wind effects down range so you sometimes rely on good ole' "Kentucky Windage"!

Nate