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時間:2010-08-16 09:43來源:藍天飛行翻譯 作者:admin
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geometric plane, and flying without undue tension or rotation. To achieve this the group
needs the following 3 things:
1. Timing
2. Presentation
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3. Placement
Timing
Timing refers to how synchronous all jumpers are during the exit. It would be ideal for all
jumpers to hit the air at the same time however this is difficult from an aircraft with a door
on the side of the fuselage. The precise time for individual jumpers to exit depends on their
slot in the formation but whatever your slot, all jumpers work off the same timing known as
the pulse or count. This timing needs to be consistent and well rehearsed on the ground.
Presentation
Presentation refers to an individual’s attitude in relation to the relative air. To be able to
have good presentation individual jumpers need to present their flying surface (the under
surface of their body) onto the air. As a group, a formation should avoid being too flat as
this can cause a formation to fold itself. So it’s better to be steep.
Placement
Placement refers to an individual’s slot within a formation. Your placement is the
foundation to your timing and presentation. When you exit an aircraft in a formation, you
need to know where to place your body in relation to others jumpers.
2 Way Exits
On a 2 way exit, each jumper will have a different job. This is because each jumper will
have a different slot in the door and each slot has a different name. The most commonly
know slots are:
Front Float (F.F)
Centre Float (C.F)
Rear Float (R.F)
Inside Diver (I.D)
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Front Float
Front Float is one of three ‘floater’ exit positions. The front float exit position is used when
both jumpers decide to exit from a position in the door, which is outside the aircraft. The
other jumper would be in the centre float position in the centre of the door
Position in the door
Climb out and assume a position as far forward in the door as possible. Hold the bar rail
with both hands and get balanced with your centre of mass over your right foot. Get
presented by trailing your left leg. If you are launching a linked exit, the centre float will
take your right arm grip with his left hand.When you are ready, look at the (C.F) and watch
for the count.
On exit
As the count comes, move with the (C.F) but, as your placement on exit is higher in relation
to the (C.F),
leave slightly
late. As you
exit, maintain
presentation
and keep eye
contact.
Centre Float
Centre Float is one of three ‘floater’ positions. The centre float exit position can be used
with the other jumper either inside or outside of the aircraft. The job of the centre float is
one of control of the exit and this slot would normally initiate the count.
Position in the door
57
Climb out and assume a position in the centre of the door. Hold the bar rail with both hands
and get balanced with your centre of mass over your right foot. Get presented by trailing
your left leg. If you are launching a 2 way linked exit with a front float, take the front
floaters right arm grip with your left hand. All other exits will require the other jumper to
take up grips on you.
On exit
If you are giving the count, ensure that the other jumper is ready and get eye contact. As
you exit, push off with your right foot and get your hips away from the door. Think
presentation and maintain eye contact.
Rear Float
The Rear Float is one of three ‘floater’ exit positions. The rear float exit position is used
when both jumpers decide to exit from a position in the door which is outside the aircraft.
The other jumper would be in the centre float position in the centre of the door.
Position in the door
58
Climb out and assume a position at the rear of the door and wait for the centre float to get
into position. Once the (C.F) is in position take their right arm grip then hang down as low
as possible with your right arm fully extended. Trail your left leg and get presented.
On exit
Look up at the (C.F) and watch for the count. As the count comes move with the (C.F) but
as your job on exit is to be lower than (C.F) leave slightly early. Your placement should be
lower than the (C.F). To achieve this on exit all you have to do is release your hold of the
bar rail and drop straight down. Think presentation and maintain eye contact.
Inside Diver
The Inside Diver position can be used when the other jumper is in the centre float position
in the door.
Position in the door
Wait for the centre float to climb out and get into position in the back of the door. Take the
59
 
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