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Your ears also can provide more than one kind of valuable information. The most noticeable is the sound of air passing by the cockpit. For any given speed the sound is steady, but then will become louder when rising currents strike the sailplane from below. Conversely, if you're holding constant speed and the sound becomes quieter, you know you just flew into sink - or weaker lift. The core of a thermal can easily be heard in this way, and you can make appropriate adjustments of attitude sooner than with the most expensive variometer on the market. Of course, this information may be unavailable if you insist on listening to an electrical noisemaker, so it's best to turn that annoyance off. Save your battery power for something important, such as communication. The inner ear also provides useful sensations. The head of any good pilot is of course continually turning and moving all around, and this distorts inner ear information. But during those moments when you're nosing into possible lift, it might pay to hold your head quite still for a few seconds and concentrate on what you feel in those delicate organs on each side of your head. Guarantee: it will not work for you unless you try it. But wait, the organic variometer offers even more! Your sense of smell can be very useful at times, especially in spring, summer, and fall. Let's say it's May, and you're gliding down, wishing you could find some lift. If suddenly you smell flowers, turn into the wind and follow the fragrance up! Or maybe it's July and you smell cow manure: time to climb (though not as aesthetically pleasing as an aroma of spring blossoms, there are few thermal sources more reliable than a farmer spreading manure - so long as the sun is shining on that particular field at the time). In October, the scents most apt to indicate lift are those of burning leaves or grass stubble. This brings us to the many other odors that arise from the often smelly "hand of man." Whether fumes from traffic, factories, dumps, or other more noxious sources, smells of any sort, detected aloft, generally indicate soarable lift. The more they stink, the stronger your motivation to climb fast and get away. Now, how about your sense of … imagination? Yes, you can use creative thought to combine all these sensory resources, and to interpret what they tell you. Think like a bird. Think like an air molecule. Think like a soaring pilot who does not need to be told by a machine what to do. Think for yourself! It can be very gratifying stuff. Okay, we've covered touch, sight, sound, and smell - and even imagination. So, what about taste? Forgive me if you must, but a good way to develop your organic variometer is to cultivate a DIStaste for other, more costly, less satisfying means of information gathering. Shut those electric gizmos down and go fly for a while. Just you and the sky. Using natural information in this way puts you more directly `in touch' with the air through which you are floating. It's fun, it's challenging, and it will reward you with confidence in your own judgment, your own abilities, yourself. The organic variometer, after all, is you. Good luck, and have fun!
A CFIG for about 25 years, Dale Masters has flown mostly in northern New England and southern California. Since 1999, he has instructed full-time at Great Western Soaring School at Crystal.
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