Normal hawk-throwing competitions at Rendezvous are conducted at 1-turn, turn-and-a-half, and 2-turn distances. The throwing point is determined by your own pace length (and I assume that you have "tuned" your hawk to your own arm length, pace length, and other physical characteristics).
The 1-turn throw is done from 6 steps (actually, you take one extra pace as you will be stepping into the throw). This is the baseline. The hawk is thrown with the blade edge down, and sticks in the target approximately square, with the handle down.
The turn-and-a-half throw is done from 3 steps farther out (9 steps plus your "extra" step) with the blade edge UP. The hawk again sticks squarely in the target, but with the handle up.
The 2-turn throw is from another 3 steps out (12 paces plus the "extra" step) and is again executed with the blade edge down when the hawk is in the hand. It again sticks squarely, with the handle again down.
As Cliff correctly pointed out, a smooth and consistent release is a necessity. Arm motion must also be vertical (not sideways to any degree) and no "wrist snap" can be tolerated as it screws up the consistency of the release. The hawk handle, when the hawk sticks in the target, should be vertical whether "up" (1 and 2 turn throws) or "down" (turn-and-a-half throws).
Hope this information is of use to you.
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