As heli pilots initially were mostly male,the authorities decided to make an aiming point that was a familiar sight to them.Studies proved a circle resembled something that could be approached from many angles and directions.Some enhanced this further by adding nets etc to give it the "furry" look.
Cautions.
1.Red lights on-danger ahead,go-around.
2.Be careful with wind direction-you may get sucked in.
3.Keep wx-radar on and expect the unexpected.
4.Try to stay upwind to avoid fishy smells.
