Barometric altimeter VD-20 description and application. The VD-20 barometric altimeter is designed to determine and maintain the flight altitude relative to the level of that isobaric surface, the atmospheric pressure of which is set on the barometric scale. The main components of the altimeter are a sensitive element (aneroid box), a transmission-multiplier mechanism, an indicator part, a mechanism for setting the initial pressure, and a hermetic housing. On the front of the device there are two movable triangular indexes indicating on the altitude scale the height corresponding to the measurement of barometric pressure relative to sea level pressure (760 mm Hg). The indications of the indexes are read in the same way as the readings of the altimeter needles.
One index shows the height in kilometers, the second - in meters. ATTENTION: Dear Customers, you will receive exactly the item which you see in the picture, not similar or other. You can always check the condition of the item by the picture. In the unlikely event you have a problem after you receive your item, please contact me, don't just leave negative/neutral feedback, it is in neither parties interest, I don't want bad feedback & you don't want something you are not happy with.
This item is in the category "Collectibles\Militaria\Militaria (Date Unknown)\Air Force". The seller is "anastasiiishchu_1" and is located in this country: UA. This item can be shipped worldwide.