Approach

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approach

[ə′prōch]
(mechanical engineering)
The difference between the temperature of the water leaving a cooling tower and the wet-bulb temperature of the surrounding air.
(navigation)
In air operations, a maneuver executed by an aircraft in making its transit from high-altitude enroute flight to the point where it begins the landing approach; includes maneuvers (such as flying race-track pattern) required for traffic control.

Approach

 

in space navigation, a series of consecutive maneuvers by which one spacecraft is brought into close proximity to another. The aim of approach may be inspection, mooring, or assembly in orbit. Inspection, for example, entails the examination of a spacecraft at close range in order to determine the necessity of repairs. Mooring involves the temporary linking of two spacecraft with a flexible line.

Approach may be accomplished in two ways. In one technique only the final distance separating the two spacecraft is critical, and the closing speed at the moment of closest approach is not a factor. In the second technique the closing speed up to the moment of closest approach should be very low, ideally zero. This second technique requires larger expenditures of fuel than the first.

Approach requires that the two spacecraft be equipped with radio communications systems, computers, rocket engines, and navigation control systems. The active spacecraft carries out the search, maneuvering, and approach missions, while the second one is passive.

The first approach of two spacecraft with crew participation was carried out by the American spacecraft Gemini 6 and Gemini 7 in 1965. The first approach of three spacecraft with crew participation was carried out by the Soviet spacecraft Soyuz 6, Soyuz 7, and Soyuz 8 in 1969.

approach

That part of an aircraft flight path from the end of the en route phase of the flight to touchdown.

Approach

A relational database that is part of Lotus SmartSuite. It provides the ability to graphically create Windows applications using industry standard database formats, such as dBASE and Paradox. It includes macros and the ability to attach programming statements to data, providing a way to automate many kinds of applications. See Lotus SmartSuite.
References in classic literature ?
The flowers were like new acquaintances; she approached them in a familiar spirit, and made herself at home among them.
As he approached the stream, his heart began to thump he summoned up, however, all his resolution, gave his horse half a score of kicks in the ribs, and attempted to dash briskly across the bridge; but instead of starting forward, the perverse old animal made a lateral movement, and ran broadside against the fence.
The next staircase is approached by a ladder, and ends at the fourth story from the ground.
When night approached she lay down, but though she shut her eyes tight sleep would not come.
As I approached I found Dejah Thoris lying prone upon her silks and furs, her lithe form wracked with sobs.
She tried to sheer off, but the supernatural animal approached with a velocity double her own.
As night approached, the snow fell less plentifully, but it became intensely cold.
Beauchamp, who had watched with sincere pity the young man's paroxysm of grief, approached him.
Country in which there are precipitous cliffs with torrents running between, deep natural hollows, confined places, tangled thickets, quagmires and crevasses, should be left with all possible speed and not approached.
As he approached the castle which had first attracted his eye, D'Artagnan was convinced that it could not be there that his friend dwelt; the towers, though solid and as if built yesterday, were open and broken.
At the time when they left the Bannacks Snake River was frozen hard: as they proceeded, the ice became broken and floating; it gradually disappeared, and the weather became warm and pleasant, as they approached a tributary stream called the Little Wyer; and the soil, which was generally of a watery clay, with occasional intervals of sand, was soft to the tread of the horses.
Disregarding his injunction, I quickly approached him and caught a glimpse of two figures partly hidden by the dense foliage; they were standing close together, and were perfectly motionless.