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Mirror landing aid
| Морской словарь |
In the 1950s, the high landing speeds of jet aircraft proved too fast for the reflexes of the traditional batsman. this led royal navy commander h.c.n (nick) goodheart to produce an automatic carrier landing aid. in essence, this consisted of a gyroscopically-controlled convex mirror (later replaced by a fresnel lens) on the port side of the flight deck. a glowing yellow-orange image (the “meatball”) is visible to an approaching pilot, flanked by a horizontal row of green lights (the “datum”) representing the glidepath for a perfect landing. if the ball is above or below the datum, the aircraft is too high or low. if it is far too low, red lights flash in warning of potential crash. trials on british carriers hms indomitable and hms illustrious in 1953 showed the potential of the system. two years later tests on uss bennington confirmed its effectiveness. together with the angled deck (another british invention), the mirror sight (also called glide path indicator) contributed to a tremendous leap forward in the safety of naval flying.
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Traditional, английский
A традиционный grammar
Controlled, английский
- Управляемый; регулируемый
- Управляемый
- Подконтрольный (о предприятиях)
Approaching, английский
Заходящий на посадку; приближающийся
Horizontal, английский
- Горизонталь; горизонтальный
- Горизонталь; горизонтальный 287
- At right angles to the direction of gravity; on the level; parallel to the horizon; neither vertical nor inclined.
- A direction parallel to the horizon, or what is commonly termed lying flat. one of the greatest inconveniences navigators have to struggle with is the frequent want of a distinct sight of the horizon. to obviate this a horizontal spinning speculum was adopted by mr. lerson, who was lost in the victory man-of-war, in which ship he was sent out to make trial of his instrument. this was afterwards improved by smeaton, and consists of a well-polished metal speculum about 3-1/2 inches in diameter, inclosed within a circular rim of brass, so fitted that the centre of gravity of the whole shall fall near the point on which it spins. this is the end of a steel axis running through the centre of the speculum, above which it finishes in a square for the convenience of fitting a
Illustrious, английский
Effectiveness, английский
- Действенность
- Результативность, эффективность
- Эффективность; действенность
- Вступление в силу
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Miss stays, английский
To fail to turn from one tack to another, come to a standstill, and then fall back on the original tack.
Minute guns, английский
Guns fired at 60-second intervals to salute entitled personnel, or to honor the deceased at a military funeral.
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