Increase the effect of bird scaring can be achieved by elongation of the mutually opposite blades. A needle should be cut in two. Received a narrow 800-mm strips with pointed ends need to fit into the holes of the blades-“glasses” and bind them in convenient places, and stretching to hang the flags, cut from the same plastic bottles and gives the the wind wheel additional, frightening birds properties of high visibility flashing and intermittent buzzing.
Bird-scaring the checkboxes don’t accelerate and brake the rotation of the wind wheel. So, we need compensation in the form of additional lopac-TEI-“glasses”. However, and here the optimum, as to a continuously rotating wheel birds will quickly get used to it. But if it is, while some time motionless, suddenly begins to rotate in the wind…
And again. Above the vineyard is the windmill should be placed only when the berries ripen. At other times it is unacceptable because it will scare away the bees, which pollinate the flowers and birds that destroy harmful insects and caterpillars.
As the removable axle of the dynamic of the Scarecrow, the steel pin is attached to the lower arches of the vine that its rounded end can be easily put on the windmill. The speed and convenience of performing this operation increases the loop of aluminum wire, fastened to the neck of the bottle-the hub and rod with a hook on the end for donning and doffing of the wind wheel.
To scare away the birds on the big garden steel pin hammer directly into the ground and put on it the windmill larger sizes. Long spokes made from short strips (plaster shingles), cementing them together with wire and soaked the joints with glue.
Increasing the length of the spokes leads to an increase in the load on the stretch. So they are not torn, make a number of adjustments. In particular, extend the hub podtykova another bottle and transferring to it (closer to the bottom) the common place of attachment of stretch marks.
The second ends of the stretch mark evenly distribute the load over the surface of the spokes. The longer the spokes, the greater must be the stretch marks.
Number of blades-“glasses” also depends on spoke length and is determined experimentally. Below the rounded head of a steel pin into the inner tube under the action of enhanced load, instead of PTFE, a metal disc (a coin), tightly inserted into the tube.