Parachute Adams Thorax and Hackle
Select a hackle of appropriate size for the hook being used, prepare it, and tie it in at the base of the wing. I tie in both in the front and in back of the wing post. Be certain to leave plenty of bare shaft at the base of the hackle feather so that it can be easily started in its parachute turns. To form the rear of the thorax, spin a tiny bit of dubbing on the thread and figure 8 it in front and back of the wing post. Keep it light, but thoroughly cover the area. Now, spin just enough dubbing onto the thread to form the frontal portion of the thorax, this is not very much, so keep it thin. Leave an inch of so of thread between the hook shank and the top of the dubbing (Figure 1).
Wind the hackle parachute style around the very base of the wing post; it should go onto the area at the base of the wing where the thread was previously wound when the wing was tied in. Tie off in front of the wing. This will use up the bare thread between the hook shank and the top of the dubbing. Clip away the waste end of the hackle and wrap the dubbing to form the front portion of the thorax. Tie off and clip away the thread. Clip the wing to length. Fold it back over the top of the hook and clip it as long as the back of the hook bend. Place a generous drop or two of thin, flexible head cement into the base of the wing , and a tiny bit on the thread of the head (Figure 2).
Notice that this is a single feather, gray hackle Parachute Adams. I prefer this color to the mixed brown and grizzly normally used. It is not so bright in strong sunlight.