high strength and stiffness in composite-bonded materials is a result of the

what is the indentifying plot for aramid materials

what is a characteristic of graphite materials

nidirectional fabrics have the highest possible structural properties in fabric composite construction as a result of having

what assential function does a resin matrix not preform

the process where viscous materials undergo a chemical reaction to generate a rigid structure is referred to as

hat type of adhesive is most often used as a lightweight splice material for honeycomb core section splice repairs

when storing advanced composite materials in cold storage, what is the maximum temp permitted

cutting large batches of material into smaller sections the first time it is thawed is a process known as

adding too much catalyst to your matrix produces what is known as a

when mixing a liquid matrix, the components should be

what must you do prior to using the triple-beam scale

the recommended vacuum pressure, measured in inches of mercury, for curing a repair is

liquid moisture present in honeycomb sandwich assemblies is usually detectable by

in a field environment, mitigate the effects of any moisture not removed during the drying process by using cure temp of or below

what kind of ply lay-up would a laminate with a ply orientation of 45,53,-45,-45, 53,45

what can you do to help ease the reading of the ply orientation in a graphite repair site

first element of patch preparation is generating a

you would use a drill bushing and guide when drilling advanced composite laminates to ensure holes are drilled perpendicular to the surface and prevent

to compensate for the stresses of flexing in flight, the minimum required panel gap is

which work procedure do you normally perform first when making a minor repair to a laminated fiberglass panel

when making a minor repair to a laminated fiberglass panel, what is normally the tire work procedure you use

what is the first step of scarf repair

when repairing a minor metal-bonded honeycomb assembly skin delaminating, you can prevent core damage when drilling holes for the resin injection by using a

how are the thermocouples positioned when repairing a metal-bonded honeycomb repair

LO technologist gives an aircraft the ability to defeat radar, thermal, acoustical

the main purpose of making an aircraft LO is to increase the aircraft’s

the acronym RADAR stands for

what is radar cross section

radar cross section is typically measured in square

ondensation trains, glints and paint schemes are sources of which radar signature

what type of aircraft signature source is generated by energy backscatter

at is the most important factor for radar cross section reduction on an object

which reduction strategy uses painting an aircraft to match primary mission

when you located damage during an insp you will record length, width, depth/height, classification and

what LO verification tier is a whole body near field measurement

during a repair layout, what tool would you use to create or measure an angle

the best way to crest a straight line when cutting radar absorbent meter oak is to use

arranging all aircraft details so that they coincide with the outer mold line angle of the aircraft is called

what alignment shape is widely used because it allows for smaller repair areas

when developing a repair in a good platform alignment, you would align your repair with the aircraft

what do you resistive properties of the loaded core of a radar-absorbing structure do to the electromagnetic energy entering it

dissipating an energy current over the whole surface of the aircraft is purpose of the

corrosion-inhibiting primer is recommended to be used as a barrier between LO coating and metal structure because of

LO platforms use composite materials because they do not reflect radar and are

ceramics are used as insulation on aircraft because the do not corrode, are heat resistant, and

radar-absorbing materials’ at a given frequency depends on its thickness and

a dielectric radar-absorbing materials’ reformable is based on the type of dielectric material, electrical loading and

hat type of sheet is an R-card

the R-card is typically bonded to the radar-absorbing structure or embedded weiteren composite materials that are

hat is the result a hot sealant mixture

what type of materials are used to provide a smooth transition between two surfaces that have a mismatched height

when assessing LO material defects, you must accurately identify width, depth, heigh, length, orientatio, classification of damage and

extreme heat expands the radar absorbing material, breaking down the adhesive bond and causes

corrosion is an serious problem for stealth aircraft because LO coatings

extensive repair is usually required on LO materials when corrosion becomes visibly evident by showing

while using a pneumatic scraper to remove LO coatings, what type of trajectectory must you use to prevent delaminations in the composite structure

when using a pneumatic scraper to remove LO coating around the edge of a panel, the direction you should scrape is from an

what tool do you use t remove filler material from gaps and seams on LO aircfraft

in order to safeguard the sensitivity of the material when discarding excess RAM you may have to use disposal equipment such as industrial shredders, hand-held cutting devices and

the term that describes the systematic removal of LO coating in a way that ensures a smooth transition between layers is

transitioning between an original coating and new coating by overlapping alternating paints is called

you should incorporate larger that’s minimum dimensions during your removal layout to allow for

sand a coating layer until the layer below is visible is called a burn

what can occur if the conductive elements of a coating are left exposed and unprotected for an extended period of time in a hot and humid enviroment

what determines the aircraft surface temp that must be maintained for specific material application

the solvent wipe cleaning step for composite materials to omitted

to ensure that flex primer will adhere to the surface of RAM scuff sand the surface of the RAM with

what material is used for its adhesion-improving and corrosion-inhibiting properties

the exterior finish of the aircraft minimizes the moisture intrusion and provides ultraviolet protection for

e most effective roller covers for the application of primer are made form

when applying sheet-type RAM you must consider surface area, shape, available equipment and

when applying RAM with PSA you roll it down with a rubber-wheeled roller to

how can you prevent moisture and condensation from degrading the performance of filler material that has been removed from cold storage

zip cords are installed around panels some panels to aid in gap filler

the most effective way to apply primer to panels seams during small repairs is to use a/an

when a repair requires uniform pressure across the bonded surface you will use a

inspection without the aid of diagnostic equipment of the procedures being preformed is

Echt iCal verify of aerodynamic smoothness can be accomplished through the use of feeler gauges, pit depth gauges and