GENERAL ARRANGEMENT GENERAL ARRANGEMENT
The vertical stabilizer is installed at the rear of the fuselage, mounted on top of section 19.
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GENERAL ARRANGEMENT
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VERTICAL STABILIZER DESCRIPTION (3)
-the rudder which is split into an upper and a lower section.
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GENERAL ARRANGEMENT - GENERAL ARRANGEMENT (CONT'D)
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VERTICAL STABILIZER DESCRIPTION (3)
SPAR BOX SPAR BOX
STRUCTURE LAYOUT STRUCTURE LAYOUT
The vertical stabilizer spar box has two side skin panels, two spars (one front and one rear) and nineteen ribs . The leading edge is located forward of the front spar and the trailing edg e after the rear spar. The lower part of the vertical stabilizer (up to rib 8) is accessible through an access door from inside the fuselage section 19. The upper part of the vertical stabilizer (from rib 8 to 19) is accessible through the front and rear spars holes/manholes.
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SPAR BOX - STRUCTURE LAYOUT
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VERTICAL STABILIZER DESCRIPTION (3)
SP
SPAR BOX AR BOX (continued)(continued) SKIN PANELS SKIN PANELS
The two skin panels are made of Carbon Fiber Reinforced Plastic (CFRP) tape with co-bonded T shape stringers, which are parallel to the rear spar. The fuselage interface concept is based on six main lugs for each side, two bolts per lug, fulfilling a load path with large redundancy.
Skin panels are reinforced by main lug doublers at the interface with the fuselage.
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SPAR BOX - SKIN PANELS
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VERTICAL STABILIZER DESCRIPTION (3)
SP
SPAR BOX AR BOX (continued)(continued) SPARS
SPARS
Spars are from C shape with flanges pointing inwards and are made of CFRP.
T shape horizontal stiffeners are bonded to the forward face of the spars, and T shape vertical stiffeners are bonded to the aft face. Both are made of CFRP.
The rib to spar attachment is done with horizontal rib feet made of CFRP.
Skin panels are riveted to the flanges of the spars.
On each spar a transverse load fitting made of CFRP does the connection with the fuselage th rough adjustable length clevis rods. A coupling made of CFRP connects the transverse load fitting to the spar and titanium angles connect it to the skin panels.
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SPAR BOX - SPARS
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VERTICAL STABILIZER DESCRIPTION (3)
SP
SPAR BOX AR BOX (continued)(continued) RIBS
RIBS
The seven lower ribs, from rib one to seven, are truss work assemblies made with CFRP C shape profiles and closed section struts.
The twelve upper ribs, from rib eight to nineteen, are C shape solid ribs made of CFRP with T shape bonded stiffeners.
All the ribs are connected to the skin panels using blind bolts.
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SPAR BOX - RIBS
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VERTICAL STABILIZER DESCRIPTION (3)
LEADING EDGE LEADING EDGE
The vertical stabilizer leading edge has:
- seven leading edge panels per side,
- sixteen leading edge ribs made from CFRP sandwich with honeycomb core,
- and six D nose sections,
The D nose has five sections with GLARE skin and one lower section with a skin made of Glass Fiber Reinforced Plastic (GFRP).
Each D-nose section has:
- a D-nose spar,
- and aluminum alloy D nose ribs attached to the D-nose spar and to the D-nose skins.
The left hand side leading edge panels are removable while the right hand side panels are fixed. The panels one to six are made of CFRP sandwich with honeycomb core and the panel seven made of GFRP sandwich. A taxi camera is located in the upper leading edge section.
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LEADING EDGE
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VERTICAL STABILIZER DESCRIPTION (3)
TRAILING EDGE TRAILING EDGE
The vertical stabilizer trailing edge has:
- nine rudder hinge fittings,
- four rudder actuator attachment fittings (two for each rudder), - two vertical load fittings,
- an auxiliary spar, - and trailing edge panels.
The rudder hinge and actuator attachment fittings are made of CFRP and have aluminum alloy fork heads. The hinge fittings are directly attached to the rear spar, while the actuator attachment fittings are attached with CFRP brackets. The vertical load fittings are made of CFRP and have fork heads made of titanium alloy. Brackets attach vertical load fittings to the rear sp ar.
The auxiliary spar is attached to the rudder attachment fittings and has CFRP webs, stiffeners, aluminum alloy chords and splices.
The trailing edge has seven removable panels per side:
- panels one to six are made from CFRP sandwich with honeycomb core - and the panel seven is made from GFRP sandwich with honeycomb
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TRAILING EDGE
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VERTICAL STABILIZER DESCRIPTION (3)
LOWER FAIRING AND TIP LOWER FAIRING AND TIP
The lower fairings at the junction between the vertical stabilizer and the fuselage are made of CFRP sandwich with honeycomb core.
The vertical stabilizer tip is made of GFRP sandwich with honeycomb core and has internal GFRP ribs. The tip is protected against lightning strike with an aluminum strip on the top of it.
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LOWER FAIRING AND TIP
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VERTICAL STABILIZER DESCRIPTION (3)
RUDDER RUDDER
LOWER RUDDER LOWER RUDDER The lower rudder has:
- two CFRP skin panels with thirty-one co-bonded U shape stringers parallel to the rudder hinge line,
NOTE: Note: A bronze mesh layer is bonded on the outer surface of the skin panels to protect the structure against lightning strike.
- a C shape spar with flanges pointing outwards and made of CFRP, reinforced through fourteen CFRP stiffeners installed on the outer surface of the spar,
- six CFRP box ribs (RR rib) attached to the rudder spar through an angle,
- four CFRP simple load ribs (BR rib ) and two CFRP double load ribs at the location of rudder actuators 1 and 2. All these ribs are attached to the rudder spar through a spine hinge fitting,
- two actuator fittings and four hinge fittings, made of aluminum alloy,
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RUDDER - LOWER RUDDER
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VERTICAL STABILIZER DESCRIPTION (3)
RUDDER (continued) RUDDER (continued) UPPER RUDDER UPPER RUDDER The lower rudder has:
- two CFRP skin panels with thirty-one co-bonded U shape stringers parallel to the rudder hinge line,
NOTE: Note: A bronze mesh layer is bonded on the outer surface of the skin panels to protect the structure against lightning strike.
- a C shape spar with flanges pointing outwards and made of CFRP, reinforced through twenty-two CFRP stiffeners installed on the outer surface of the spar,
- six CFRP box ribs attached to the rudder spar through an angle, - seven CFRP simple load ribs and two CFRP double load ribs at location rudder actuators 3 and 4. All these ribs are attached to the rudder spar through a spine hinge fitting,
- two actuator attachment fittings and seven hinge fittings made of aluminum alloy,
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RUDDER - UPPER RUDDER
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