PILOT BALLOON THEODOLITE

For the determination of the direction and the velocity of the wind in certain air layers by angle measurements in constant time intervals. Very bright bent axis main tracking telescope with coated optics, magnification 16x or 20x, field of view 55,6 m /1000m (16x)/27,8 m (20x), fix-focus system, objective aperture 48 mm, open sights and open finder telescope for rough aiming. There are two vertical circles and an adjustable horizontal circle with two diametric opposite horizontal circle readings, Ø 142 mm, reading 0,1°, Ø vertical circle 128 mm, reading 0,1°, illumination of field of view and circle reading positions, for ease of tracking the balloon all movements are friction-controlled by endless worm drive screws.