BILGE AREA
(FORWARD PRESSURE BULKHEAD
TO FRONT SPAR BULKHEAD.
INCLUDES THE SIDES OF THE
WHEEL WELL AND THE INTERIOR
OF ACCESS DOORS.)
ON UPPER SURFACE OF CENTER
SECTION AND PRESSURE DECK,
20 INCHES (508 mm) FORWARD
AND AFT OF THE REAR SPAR.
PRESSURE
DECK
CARGO
FLOOR
AFT PRESSURE
BULKHEAD
FRONT
SPAR
KEEL BEAM BOX
(INTERIOR AND EXTERIOR,
FRONT SPAR TO WHEEL
WELL BULKHEAD)
REAR SPAR
MAIN GEAR
WHEEL WELL
BILGE AREA
(WHEEL WELL BULKHEAD TO
AFT PRESSURE BULKHEAD)
(ALL OF THE FORWARD
SURFACE UNDER THE FLOOR)
FRONT
SPAR
BL 0
CARGO
DOOR
WL
208.1
S-25L
S-25R
BILGE AREA
TYPICAL FORWARD CONSTANT
SECTION
NOSE GEAR
WHEEL WELL
FORWARD
PRESSURE
BULKHEAD
L
C
J72083 S0000174894_V3
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