Overview
The left and right windshields and adjacent side windows in the flight compartment permit forward and side vision for the crew.
The pilot’s and copilot’s windshield and side window panels do not attach to each other. An external strap attaches the windshield and side window to a set post. You can fully remove the external strap from each panel and from the aircraft. A side strap attaches the windshield to the side window and to a set post.
The windshields and side windows in the flight compartment have a de-mist, de-fog and anti-ice system which operates with electrical heat. Hot bleed air from the engines is available for demisting.
05/23/16
Windshields
There is a right windshield and a left windshield at the front of the flight compartment on the aircraft center line. The windshield assembly is a bonded structure which includes the component that follows:
- One outer frame
- One face ply
- One outer main ply
- One inner main ply
- Two interlayers
- Edge attachment set
- One inboard retainer
- Bushing assemblies
- One side strap
The outer frame has a C shape and two rows of holes along its length. The inboard side of this frame has a groove, which is on the same center-line as the outer row of holes. The groove in the outboard retainer holds a gasket, which has holes that align with those in the groove. The outer frame makes the splice that attaches the top, forward and the bottom edge of the windshield to the aircraft structure.
The face ply is a sheet of glass 0.098 in. (2.49 mm) thick. The inboard face has a conductive coating that is electrically powered and heated when the windshield anti-ice system is operated. Between the inboard face of the face ply and the outer ply are three heater sensors, which are located at a distance of 0.025 in. (0.64 mm) from the conductive coating.
The outer main ply is a sheet of acrylic 0.700 in. (17.78 mm) thick. An interlayer on each face isolates this outer ply from the face ply and the inner main ply.
The inner main ply is a sheet of acrylic 0.350 in. (8.89 mm) thick. An interlayer isolates this inner main ply from the outer main ply.
The inter layers are layers of sealant that bond and isolate the acrylic plies. The interlayer that isolates the outer ply from the face ply is 0.100 in. (2.54 mm) thick. The interlayer that isolates the outer ply from the inner ply is 0.050 in. (1.27 mm) thick.
The edge attachment set is on the inboard, top and bottom edges of the inner main ply. The attachment holes align with those in the acrylic plies and the outer frame of the windshield assembly. The inboard retainer is wet installed to this edge attachment set.
The inboard retainer is a ring with retained nuts. The nuts align with the inner row of holes in the outboard retainer. The bolts that attach the plies to the outboard retainer, go into the nuts in the inboard retainer.
There are two sets of bushings. One set of 51 bushings go into the attachment holes that include the three sides of the outer frame. The other set goes into the attachment holes where there is no outer frame. The bushing assembly is a metal bushing with a rubber insert.
The side-strap makes the splice between the windshield and the aircraft structure along the aft edge this strap also attaches to the side window).
Side Windows
There is a left side window and a right side window in the flight compartment that do not open. They are adjacent to and immediately aft of the left and right windshields. The side window assembly is a bonded structure which includes the component that follows:
- One outer frame
- One outer main ply
- One inner main ply
- One interlayer
- Edge attachment set
- One inboard retainer
- Bushing assemblies
- One side strap
The outer frame has a C shape and two rows of holes along its length. The inboard side of this frame has a groove, which is on the same center-line as the outer row of holes. The groove in the outboard retainer holds a gasket, which has holes that align with those in the groove. The outer frame makes the splice that attaches the top, aft and the bottom edge of the side window to the aircraft structure.
The outer ply is a sheet of acrylic 0.550 in. (13.97 mm) thick. The inboard face has a conductive coating that is electrically powered and heated when the windshield anti-ice system is operated. An interlayer on the inboard face isolates this outer ply from the inner main ply. Between the inboard face of the outer layer and the interlayer are three heater sensors located at a distance of 0.025 in. (0.064 mm) from the conductive coating.
The inner ply is a sheet of acrylic 0.400 in. (10.16 mm) thick. An interlayer isolates this inner ply from the outer ply.
The interlayers are layers of sealant that bond and isolate the acrylic plies. The interlayer that isolates the outer ply from the inner ply is 0.100 in. (2.54 mm) thick.
The edge attachment set is on the aft, top and bottom edges of the inner ply. The attachment holes align with those in the acrylic plies and the outer frame of the side window assembly. The inboard retainer is wet installed to this edge attachment set.
The inboard retainer is a ring, which has retained nuts. The nuts align with the inner row of holes in the outboard retainer. The bolts that attach the plies to the outboard retainer, go into the nuts in the inboard retainer.
There are two sets of bushings. One set of 55 bushing assemblies goes into the attachment holes that include the three sides of the outer frame. The other set of 12 bushing assemblies goes into the attachment holes where there is no outer frame. The bushing assembly is a metal bushing with a rubber insert.
The side-strap makes the splice between the side window and the aircraft structure along the forward edge of the side window (this strap also attaches to the aft edge of the windshield).
