A sounding balloon which, when operationally inflated, resembles an inverted teardrop.

In a given electrical circuit, the amount of current in amperes (i) is equal to the pressure in volts (V) divided by the resistance, in ohms (R).

A configuration of an electrical circuit in which the voltage is the same across the terminals. The positive reference direction for each resistor current is down through the resistor with the same voltage across each resistor.

A plot of expected operating characteristics (e.g.., discharge pressure versus inlet capacity, shaft horsepower versus inlet capacity).

The maximum stress that a material can withstand for an infinitely large number of fatigue cycles. See also fatigue strength.

Any device (or plant) that follows the sun's apparent movement across the sky.

A type of cooling system that uses a charging and discharging cycle with a thermal or latent heat storage subsystem.

(1) To bind a line with marline, cord, twine, wire, or other "small stuff" to prevent accidental opening or unraveling (2) To freeze up, as a valve.

A raft used in case of emergencies, such as sinking or fire.

Abbreviation for "Government Bill of Lading."

Drydocking, beaching, or careening a vessel and carefully examining the bottom with a view to ascertaining any damage it may have.

Mobile Offshore Production Unit.

A protective or decorative nonmetallic coating produced in silo by chemical reaction of a metal with a chosen environment. It is often used to prepare the surface prior to the application of an organic coating.

The amount of heat in a quantity of matter at a specific temperature and pressure.

Abbreviation for "Please Authorize Delivery Against Guarantee." A request from the consignee to the shipper to allow the carrier or agent to release cargo against a guarantee, either bank or personal. Made when the consignee is unable to produce original ...

National Fluid Power Association.

Tank

The opening up the back (aft) edge of the mast in which the mainsail luff rope slides when it is hoisted. Some masts have an external sail track.

The command given to inform the crew that the helm is being turned quickly to leeward, turning the boat windward

Method of producing a chart in which the parallels of latitude and the meridians of longitude intersect each other at right angles.