Where E-Glass Stitched Multiaxial Is Used in North American Manufacturing

Directional strength; better fiber wet-out in infusion than chopped

Directional fabrics carry pump and slamming loads through a thin, light laminate

Stitched fabrics for closed-mold and light RTM caps on motorized coaches where consistency and NESHAP styrene limits matter

Glass plies in the skin and the trailing edge for damage tolerance and for tuning blade torsional stiffness without adding carbon

Glass on antenna windows, nose sections and any panel that has to pass radio frequency energy, and on cost-driven expendable airframes throughout

Glass reinforced phenolic and polyester spall liners, and glass as a cost-driven backing where the threat level allows

Glass fabric is the reinforcement of record on interior panels: it carries no structural load worth naming, it is cheap, and it does not conduct

Glass phenolic skins, with local carbon reinforcement at the hinge and tie-rod fittings on the larger pivot bins

Glass fabric skins, with heavier laminate and inserts where a trolley latch, a work deck or a tie-down takes load

Glass epoxy and glass phenolic ducting is the volume material for bleed air and environmental control ducts: non-conductive, cheap, formable and easy to repair

Radar transparency rules carbon fiber out completely: a conductive fiber in front of an antenna is a reflector. Glass with a controlled dielectric constant and a tight thickness tolerance is the material, and this is the one structural application in the roster where glass is not a cost compromise

Glass plies at the outer surface and around fastener lands, to isolate carbon from aluminum hardware and to take handling damage instead of the structural plies

Glass fabric fairings persist wherever antenna transparency, lightning path or cost matters more than weight, and on business jets and older programs generally

Glass fabric skins are the volume floor panel facing: cheap, damage tolerant, and repairable by a line mechanic with a wet layup kit

The reinforcement in a pultruded tray is continuous glass roving and mat; the profile is a structural member and the fiber architecture, not the resin, sets its load rating.