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placing the switch to HOLD. With WoffW, the switch must be held in the OPEN position to raise the
canopy.
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Figure 2-32. Canopy Controls
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OPEN Unlocks and/or raises the canopy.
HOLD Stops the canopy at any point during the open or close cycle.
CLOSE Lowers and, if held, closes and locks the canopy (CANOPY caution out when
closed and locked).
2.15.1.1.2 Canopy Switch (External). The external canopy switch is located inside the external
power receptacle door (door 9) on the left side of the aircraft below the canopy and LEX. The switch
provides electrical operation of the canopy from outside the cockpit. The switch has the same positions
and operates identically to the internal CANOPY switch, except that the OPEN position is not
solenoid held.
2.15.1.1.3 Manual Canopy Handcrank (Internal). The internal manual canopy handcrank is stowed
in a clip beneath the left canopy sill. The canopy can be manually opened or closed by inserting the
handcrank into the crank socket immediately above the stowage clip. Approximately 70 counterclockwise
turns are required to fully open the canopy. Clockwise cranking closes the canopy. A cable is
provided to prevent loss of the handle if dropped.
2.15.1.1.4 Manual Canopy Actuation Fitting (External). The external manual canopy actuation
fitting, a 3/8 inch drive socket on the left side of the aircraft below the canopy, is used to manually
operate the canopy. Inserting a 3/8 inch drive tool in the socket and then turning counterclockwise
approximately 35 turns opens the canopy. Turning the drive tool clockwise closes the canopy.
2.15.1.2 Canopy Jettison System. For canopy jettison, a cartridge initiated thruster is utilized to
unlatch the canopy by moving it 1½ inches rearward, after which two canopy frame mounted rocket
motors fire to rotate the canopy up and aft, clear of the ejection seat path. The thruster, which provides
attachment for the canopy actuator link during normal canopy operation, is activated by pulling the
ejection seat firing handle or internal canopy jettison handle(s) (figure 2-32). The canopy can be
jettisoned closed, open, or in any intermediate position.
2.15.1.2.1 CANOPY JETT Handle. The CANOPY JETT handle is black and yellow striped and is
located on the left inboard canopy sill just aft of the instrument panel in the front cockpit. Pressing the
button on the tip of the handle unlocks the handle. Pulling the handle aft initiates the canopy jettison
sequence. A ``remove before flight'' pin is used to manually secure the CANOPY JETT handle between
flights.
2.15.1.2.2 CANOPY JETT Handle (F/A-18F). The rear cockpit CANOPY JETT handle is black and
yellow striped and is located on the left console. Pressing the button on the forward tip of the handle
unlocks the handle. Pulling the handle up initiates the canopy jettison sequence. A REMOVE
BEFORE FLIGHT pin is used to manually secure the CANOPY JETT handle between flights.
2.15.2 Boarding Ladder. A five-step boarding ladder (figure 2-33), stowed under the left LEX,
provides access to the cockpit and the top of the aircraft. Ladder extension and retraction can be
accomplished only from outside the cockpit, either manually or by the ladder remote release switch.
The ladder is extended manually by releasing the latch on the stow assist handle on the ladder's left
rail (allowing it to drop slightly) and while supporting the ladder, rotating the stow assist handle to
vertical (releasing the remaining two mechanical uplocks on the underside of the LEX). The ladder
rotates down to the extended position. The stow assist handle is then secured. The drag brace locks
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when extended to its full length to provide longitudinal stability for the ladder. Lateral stability is
provided by the V-shaped side brace attached to the side of the fuselage.
The LEX is narrow and highly sloped. Use caution to avoid loss of
footing.
NOTE
The ladder is not visible from the cockpit.
Normal cockpit egress is accomplished by grasping the canopy sill firmly with both hands, leaning
outboard and, using the ladder marking decals as a guide, stepping over the LEX toward the ladder.
The first step is approximately 15 inches below the leading edge of the LEX.
The ladder is stowed by detaching the rigid side brace connection from the fuselage. Pulling the
collar on the drag brace down permits the telescoping drag brace to unlock and compress as the
boarding ladder is rotated up and aft to the stowed position. The latches are manually engaged and
locked by pushing them full up until locked flush with the forward beam. If necessary, the stow assist
　
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