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Discover LudwigThe phrase "a altitude" is not correct in English.
It should be "an altitude" because "altitude" begins with a vowel sound. You can use the correct phrase when discussing the height of an object or location above a reference point, typically sea level.
Example: "The airplane reached an altitude of 30,000 feet."
Alternatives: "a height" or "a level".
Exact(2)
To see this, imagine an isosceles triangle with a altitude drawn.
(a) Altitude estimation of a landing plane, and (b) altitude estimation of a plane taking off.
Similar(56)
The controller must assign the planes a speed, an altitude and a heading.
The son was stranded in a blizzard at an altitude above 8,200 feet.
Last week, North Korea launched a missile reaching an altitude of over 2,000 kilometers.
High-altitude headache can appear after an ascent to an altitude above 2500 m.
They were deployed at an altitude of 490km, in a polar orbit, 91 minutes later.
This ranch of 3,200-ha 3,200-haan ancient flies plain, at an altitude on 400 m.
The vehicle is dropped from an altitude of 40 km by a high altitude balloon.
Princetown on Dartmoor, with an altitude of 414 m, has a mean temperature of 8 °C.
It has a speed of 450 knots at an altitude of 28,000 feet.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com