It is not a Blackhawk variant. That tailboom is off the new Huey II, it can hover to the moon, carry 55,000 rounds of 20mm, 7.62mm, 200 rockets, 80 hellfires, and 65 troops. Rearm and refuel in 6 mins as well.
On a serious side, there is some chat on the net that it may be an S92 variant?
The crew was rescued by Blue Thunder
Doors Off