Dear Ray,
Always happy to help cut the learning curve for a new maker (as you already know from past tech tips to you). Spent too many years trying to re-invent the wheel, and the new breed should not have to go through that again.
Andy is right, as far as it goes. Little bitty heads and very short handles are (neither of them) a good idea for throwing. Following is a digest of info for "standard" throwers:
The "average" throwing head runs about 1 1/4 to 1 1/2 pounds, from what I have seen. Hawks intended for smaller ladies and teenagers tend to run a bit lighter; those dearly loved by some really large guys are heavier. My championship throwing hawks run toward the bottom of the 1 1/4 pound range and H&B's big stout forged hawks run to the upper end of 1 1/2 pounds or a bit more.
The length of the throwing hawk handle depends on both the weight and balance of the head and the physical dimensions of the human throwing that hawk. Your height, length of stride, length of arm (upper and lower) and arc of normal arm movement in a smooth release are all going to have an effect on the best handle length. Normally, the competition hawk is "tuned" from a base of 6 paces (plus one to step into) from the face of the hawk block, which is a one-turn distance. We'll talk about hawk handle lengths on that base.
The starting point for an "average" hawk head is a 16 to 17 inch handle. If the as-fitted handle results in over-rotation (the top of the hawk head hits the block instead of the blade) you've got a real problem, as the best solution is a new longer handle. If the fitted handle results in an under-rotation (bottom of handle hits before the blade or only the bottom edge of the blade hits the block) you have the normal "tuning" fix ..... shorten the handle by about 1/4 inch and try it again. Keep doing this until the thing hits square every time.
TO THE HAWK CUSTOMER: Just like sighting in a rifle, do NOT depend on just one throw for any decisions about the handle length. You need the equivalent of a "group" on a rifle target. Tune your hawk just like you tune your rifle. Then you can win some matches.
Hope this information helps.
TWO HAWKS
http://www.2hawks.net