Load Line

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load line

[′lōd ‚līn]
A straight line drawn across a series of tube or transistor characteristic curves to show how output signal current will change with input signal voltage when a specified load resistance is used.
(naval architecture)
A line, painted or cut on the outside of a ship, which marks the maximum waterline when the ship is loaded with the greatest cargo which it can carry safely.

Load Line


the symbol of maximum draft; placed amidships on both sides of the hulls of oceangoing vessels. Acircular symbol with a horizontal line passing through its center shows the maximum draft for seawater (in the temperate zone in the summer), and a series of horizontal lines indicates the various drafts for ocean or river waters and for various times of the year and regions of navigation. The deck line is placed above the load line.

The height of the load line is based on an established minimum freeboard, which is regulated by an international convention (1966) or by national rules, depending on the purpose, size and structural peculiarities of the vessel and is attested to by a certificate issued by a classification organization. To reduce the registered tonnage when shipping cargo with a high ratio, a tonnage mark may be shown below the second deck of an oceangoing freight vessel; the mark is an equilateral triangle whose apex touches a stepped horizontal line indicating the maximum draft in salt and fresh water.


References in periodicals archive ?
As expected, such losses are more dominant with increased device size and load line conductance.
At the fundamental frequency of operation, a 50 + j0 ohm load line is presented to the device.
This result is expected since it causes the device to operate with a load line from resistive to tuned[1] (that is, the second harmonic signal is terminated from a resistance to a reactance).
L] [n] directly across it for the purposes of constructing the load line (Figure 1a), [C.
First, determine the device output power along with the magnitude of the control voltage ~V~ needed to produce the output waveforms (Figure 1a) based on a load line superimposed on the device static I-V curves.
0-p], determined from the load line, into Equation 7 to get the input power.
While load lines are usually thought of as straight lines, using this definition, curved lines will result in some cases.
L], and the magnitude condition is met by choosing the optimum load line illustrated in Figure 4, for the simple, constant gm, class A amplifier case.
Following this, the Organization is expected, during 2014, to adopt similar draft amendments (which have already been approved by the Maritime Safety Committee (MSC) and the Marine Environment Protection Committee (MEPC)) to the International Convention for the Safety of Life at Sea, 1974, as amended; the Protocol of 1988 relating to the International Convention on Load Lines, 1966; the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers, 1978, as amended.