Winter Altimeter 57mm£995.00
2nd hand Winter Metric Altimeter, 57mm £922.00 £699.00
Factory Refurbished - Winter METRIC Altimeter 80mm inc. Form 1From: £299.00
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Brand: WinterInstrument Hole Size 80mm
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One of the primary instruments required for gliders is the Altimeter. Winter have been making Altimeter’s since the 1930’s and whilst the technology has not changed in 80 years, the materials have, leading to better accuracy and calibration. A choice of 57mm and 80mm indicators are available. Each has 3 pointers with one revolution equalling 1000 ft. The Altimeters are supplied with a form one and are accurate to 20,000 ft although they will indicate heights above 20,000 ft!
The science bit, how does it work?
The pressure-sensitive measuring element is a diaphragm capsule (aneroid capsule) which reacts to the effect of changing air pressure as the aircraft changes altitude. Tempered, aged copper-beryllium diaphragms ensure highly accurate readings. The diaphragm movement is transmitted to the instrument pointers by a linkage and gearwheels. A bimetal link compensates for the effect of temperature change delivering a highly accurate reading. The whole instrument is protected against shock and vibration.
The Winter Altimeter is available in standard 57 mm or 80mm format.
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