Auto Axe (The Pitt)

The AutoAxe is a melee weapon that will be added to Fallout 3 with the release of The Pitt downloadable content pack on March 24, 2009.

It is expected that the Axe will be able to inflict large amount of damage with its sharp rotating blades. However, due to its apparent size and weight, it will probably be somewhat slow, assuming it's wielded in an actual axe-like fashion and not used as a chainsaw or Ripper. The damage that is done by this weapon can be increased with the Auto Axpert perk which will also be available with The Pitt. The " AutoAxe" is worth 200 Bottlecaps.

The Autoaxe being used by an NPC in the Gametrailers teaser for The Pitt appears to work much like a Ripper.

Concept
On closer inspection the AutoAxe is, in fact, a chainsaw which has been fitted with a large motor and handles. The rotary blade is fitted onto the chainsaw blade, so as a result of the chainsaw spinning the larger blade spins. This modification could have been made and most probably was made for more heavy duty cutting like the one seen in The Pitt trailer.