Page:Glossary of NPIC Terminology (1965).pdf/17

Rh  for interpretation of a given target to the degree needed in the context of the in- telligence requirement.(photo interpretation) solid propellant —- A propellant consisting of a solid casting

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also called a "grain," usually made of 2 elements, a granular material and a plastic medium in which the granular ma— terial is suspended.

solid rocket test facility —— A test facility where rocket motors using a solid propellant are test fired. By common usage the word“pro- pellant" is omitted from the term.

spatial resolution -- The ability of a system to separate the images of 2 lines at a given distance. (infrared)

specific heat -— Actually is "specific heat ca— pacity" but is abbreviated specific heat. it is a figure characteristic of a specific material and is defined as the heat capacity per unit mass of an object composed of the material. (infrared) '

spoil —- Unprocessed waste, such as refuse earth or rock debris resulting from exca— vating or dredging.

static -— Static electricity discharges that pro— duce a developable image on film. The re- sults from 2 types of discharges produced are: a. dendritic static fogging —— Branching, treelike fog patterns produced on film by a sparklike static discharge.

b. corona static fogging - — Irregularly shaped fogged areas produced on film by a flickering,

glowing static discharge. static test stand -- See rocket engine test f_a- cility or solid rocket test facility as appli—

cable.

strip map —- A photographic map presentation displayed on long strips of film, normally as— sociated with radar and infrared mapping system outputs.

structural damage -- Destruction, displacement, severance, or distortion of structural mem—

NPIC/R-282/65

bers (trusses, beams, and columns) to such a degree of severity that the damaged mem- bers cannot be repaired but must be removed and replaced. The latter condition is con— sidered to exist if the above types of damage to structural members can be identified by the photo interpreter. Structural damage in- cludes the following:

a. severed trusses

b. sagging structural members

c. framework distortion

d. wall damage to wall-bearing struc—

tures

e. purlin damage where truss spacing

is over 30 feet

f. holes in roofing material greater than

30 feet along the length of a framed build-

ing where no truss is visible

g. internal. floor damage in industrial

buildings or multistory, wall-bearing

buildings, with the exception of "slab on

grade" (i.e., basement floor or floor rest-

ing on the ground)

h. Holes in reinforced or prestressed

concrete structures where the holes ex-

ceed 20 feet in minimum measurement

i. gutted multistory, wall—bearing build—

ings. (damage assessment)

Summary PIR —- A second—phase photographic interpretation report compiling and sum— marizing intelligence information of selected targets imaged on a mission or a series of missions and published on a periodic basis.

superficial damage —— Damage which can be re- paired without affecting the main structure and without necessitating replacement of main frame members. By elimination, it includes all damage other than structural damage, with the exception of roof disturbance. The fol— lowing specific types of damage are classed as superficial:

a. roof stripping -- this is the most