syclic

The current Hawk Pro and the previous Hawk Sport of three or four years ago, have many similarities, but some very important differences:

1 - The Pro uses a different lower frame - it uses the aluminum one from their Raven 50. This lower frame moves the fuel tank in under the mainshaft to keep the c.g. more consistant as the fuel is burned off, and also acts as a heat sink for better cooling.

2 - The Pro uses some special damping spacers on the spindle that provide harder damping and give a more consistant collective from right side up to inverted.

3 - The Pro replaces all of the pivot points in the Sport that used bushings, with bearings.

4 - The Pro replaced the wire-in-tube tail drive system of the Sport, with a torque tube tail drive system.

All of these can be added to the Sport at relatively little extra cost, and make it a surprisingly capable 3D machine, specially when used with the newer, more powerful Toki 40 or OS 37 engines and a good muffler, like their CN3037.

As for the autorotation system, like most 30's, both the Sport and the Pro, use the standard auto system that does not drive the tail during an autorotation. This leaves more energy in the blade for newbies practicing autos. But once you get proficient enough, and if you want to do inverted, aerobatic and backwards autos, you can always add the relatively inexpensive CTD system from the Raven 50.