aero 1b

centroid

geometric center of area

close look system

control system that considers the output and makes adjustments based on the output

cockpit

space in fueselage of small airplane that has seats of the pilot, copilot, and sometimes passengers

code

set of program instructions

comets

small bodies composed of ice and ock in various orbits around the sun

modulus of elasticity

increment of from of stress : increment of from of strain (ex. Young’s modulus, bulk modulus, shear modulus // know n as coefficient of elasticity, Elasticity modulus, elastic modulus

axial stress

force with it s resultant passing through the centroid of a particular section. force in a direction parallel to the long axis of the stucture

conditional statement

command that performs diff. actions whether a condition is true or false

moment

turning effect of a force. equal to magnitude of force x perpendicular dist. from point to the line of action from force

controllability

cabaility of an aircraft to respond to flight inputs. especially with regard to altitude and flight path

structure

something made up of interdependent parts in a pattern of organization, such as trusses, frames, or machines

tension

condition of string, wire, or rode being stretched between two pointss

weight

forced caused by gravitational attraction of the Earth

digital

way of representing a physical quantity by a series of binary numbers

dihedral

mounting of wings so that wingtips are higher than wing root

DME

distance measuring equipment. equipment (airborne & ground) used to measure in nautical miles the slant range dist. of an aircraft from the DME navigation aid

drag

acts in opposite direction of flight, opposed thrust and limits forward speed of aircraftduc

ductility

amt of plasticity that precedes faiure

dynasmic stability

out of its own accord, aircraft eventually returns to and remains at requilibrium position over period of time

eccentricity

describes roundness of an orbit

elevator

rear horizontal stabalizer that controls up and down or pitching motion or the aircraft nose

circle

2D shape that is produced by a plane fully intersecting a cone

empennage

tail assembly of an aircraft, including horizontal and vertical stabilizers, elevators, and rudder

encoder

digital circuit that produces an output code depending on which of its inputs is activiated

ESA

european space agencye

exhaust stroke

expels burned gases from the chamber