true altitude การใช้

• This is corrected by use of tables to a'True Altitude '.
• With the pilots unaware of their true altitude, the aircraft wing hit the water and it crashed shortly afterwards.
• In hot and humid conditions, the density altitude at a particular location may be significantly higher than the true altitude.
• While the altimeter indicated an altitude of approximately 9, 700 feet, the aircraft's true altitude was in fact much lower.
• Thus, in hot and humid conditions, the density altitude at a particular location may be significantly higher than the true altitude.
• True altitude sickness is rare below 8000 feet elevation, and there are towns in Colorado such as Leadville at elevations above 10, 000 feet.
• :Note that for aircraft flying more than a certain minimum altitude above ground, the distinction between true altitude and the so-called pressure altitude is ignored.
• He climbed to 50, 000 ft ( 15, 240 m ) indicated altitude, with a true altitude of 51, 550 ft ( 15, 712 m ).
• Since the flight was at night over water, no visual references could be made to convey to the pilots their true altitude or aid their descent.
• Water levels in the Caspian Sea down to true altitude of-29 m reduce the depth of the lower Volga and restrict ship movement in this part of the Volga-Don Waterway.
• Additionally, the GV reacheda maximum true altitude of 55, 256 feet ( 22.1km ), shattering the existingmaximum altitude record held by the Soviet transport AN-72 by a margin of37 per cent.
• A simple approximation is to consider that a mountain's apparent altitude at your eye ( in degrees ) will exceed its true altitude by its distance in kilometers divided by 1500.
• The altitude obtained is corrected for dip ( the error caused by the observers height above the sea ) and refraction to obtain the true altitude of the object above the horizon.
• On the horizon refraction is slightly greater than the apparent diameter of the Sun, so when the bottom of the sun's disc appears to touch the horizon, the sun's true altitude is negative.
• Additionally, the GV reacheda maximum true altitude of 55, 256 feet ( 22 . 1km ), shattering the existingmaximum altitude record held by the Soviet transport AN-72 by a margin of37 per cent.
• The actual declination and hour angle of the celestial body are found from astronomical tables for the time of the measurement and together with the'True Altitude'are put into a formula with the assumed latitude.
• In case of recession of water level of Caspian Sea down to true altitude of-29 m depths of the lower Volga would decrease and it would be very difficult to maintain ship movement via this part of Volga-Don Waterway in the dimension planned.
• So when the control tower tells you to fly at ( say ) 10, 000 feet-he doesn't know what the air pressure is like where you are-and it's understood that you won't be flying at a TRUE altitude of 10, 000 feet-but at whatever altitude a barometric altimeter would read.
• A sight is taken, that is the distance above the horizon of a heavenly object, in this case nearly always the sun, is measured with a sextant and the exact time noted in UTC . The sextant angle obtained is corrected for dip ( the error caused by the observers height above the sea ) and refraction to obtain the true altitude of the object above the horizon.