JOINT SERVICE PARACHUTE CENTRE NETHERAVON
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Transcript of JOINT SERVICE PARACHUTE CENTRE NETHERAVON
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JOINT SERVICE JOINT SERVICE PARACHUTE CENTREPARACHUTE CENTRE
NETHERAVONNETHERAVON
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CANOPY CANOPY CONTROLCONTROL
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To teach you how to To teach you how to achieve a SAFE achieve a SAFE
controlledcontrolleddescent and landingdescent and landing
The AimThe Aim
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Ram AirRam AirParachuteParachuteSystemSystem((RAPSRAPS))
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Ram Air ParachuteRam Air ParachuteCharacteristicsCharacteristics
Highly manoeuvrableHighly manoeuvrable
Rectangular in shapeRectangular in shape
Forward speed of 20 - 25 mph Forward speed of 20 - 25 mph (depending on body weight)(depending on body weight)
Turns quicklyTurns quickly
Can glide long distancesCan glide long distances
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How the CanopyHow the CanopyWorksWorks
Aerofoil shape - wing design Aerofoil shape - wing design
Open cell front allows air to be Open cell front allows air to be rammed inrammed in
Produces a Semi-rigid wing Low Produces a Semi-rigid wing Low & high pressure create lift& high pressure create lift
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Ram Air Parachute - Modes of FlightRam Air Parachute - Modes of Flight
ToggleToggle
Full DriveFull DriveFull BrakesFull Brakes
ToggleToggle
Half BrakesHalf Brakes
ToggleToggle
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How The Canopy TurnsHow The Canopy Turns
Toggles are attached to Toggles are attached to steering linessteering lines
Steering lines are Steering lines are attached to the tailattached to the tail
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Full Depression Full Depression TurnsTurns
Rapid loss of height Rapid loss of height
DangerousDangerous close to ground close to ground
Continuous turns cause Continuous turns cause fast spiralsfast spirals
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WarningWarning
Don,t spiral below Don,t spiral below 1500ft1500ft
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Any Questions?Any Questions?
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WWindind DDriftrift IIndicatorndicatorLength & weight Length & weight
Thrown from 2500ft Thrown from 2500ft
Simulates a student Simulates a student canopy canopy
J/M can determine the J/M can determine the correct opening pointcorrect opening point
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AIRCRAFT RUN IN
WIND DIRECTION- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
STUDENT CROSS
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WIND DIRECTION
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AIRCRAFT RUN IN
WIND DIRECTION
WDI
OPENING POINT
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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• HOLDINGHOLDING
• RUNNINGRUNNING
• CRABBINGCRABBING
• WIND LINEWIND LINE
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ANY ANY QUESTIONS?QUESTIONS?
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Flight DrillsFlight Drills
1. Check canopy 1. Check canopy 2. Pump brakes twice 2. Pump brakes twice
3. All round observation3. All round observation
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LOOKLOOKUPUPAROUNDAROUNDDOWNDOWN
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4. Locate the DZ4. Locate the DZNot necessarily over the DZ Not necessarily over the DZ
Depends on wind speed Depends on wind speed Use reference points to locate Use reference points to locate
DZDZMove to holding areaMove to holding area
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HOLDING
AREA
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5. Assess Drift5. Assess Drift
Over holding / play areaOver holding / play area
Hold into windHold into wind
Assess the wind strengthAssess the wind strength
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ANY QUESTIONS?ANY QUESTIONS?
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Flight DrillsFlight Drills 1.1. Check canopy Check canopy
2. Pump brakes twice 2. Pump brakes twice 3. All round observation 3. All round observation
4. Locate the DZ4. Locate the DZ (move to (move to holding area) holding area)
5. Assess wind5. Assess wind
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ExperimentExperiment
If the wind conditions are not too If the wind conditions are not too strong, carry out the following strong, carry out the following
exercises (over DZ)exercises (over DZ)360360 left turn left turn
360° right turn360° right turn3 practice flares3 practice flares
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During Your FlightDuring Your FlightAlwaysAlways RememberRemember:-:-
All round observationAll round observation
Altitude awarenessAltitude awareness
Location of the PLALocation of the PLA
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The Landing The Landing PatternPattern
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LANDING PATTERN
(left-hand circuit)
Play Area
(up wind)
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LANDING PATTERN
(left-hand circuit)
Play Area
(up wind)
Downwind Leg 1000ft
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
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LANDING PATTERN
(left-hand circuit)
Downwind Leg 1000ft
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Play Area
(up wind)
Base Leg
500ft
_ _ _ _ _ _ _ _
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LANDING PATTERN
(left-hand circuit)
Base Leg
500ft
Downwind Leg 1000ft
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _
Play Area
(up wind)
Final Approach 300ft
_ _ _ _ _ _ _ _ _ _
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UPWIND HOLDING AREA
1000FTDOWNWIND
LEG
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UPWIND HOLDING AREA
1000FTDOWNWIND
LEG
500ft BASE LEG
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UPWIND HOLDING AREA
1000ft
DOWNWIND
LEG
500ft BASE LEG
FINAL
APPROCH
300ft
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LandingsLandingsSmooth flare from full flightSmooth flare from full flight
(10 ft, 2 - 3 sec's from the ground)(10 ft, 2 - 3 sec's from the ground)
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• If you flare too high - keep If you flare too high - keep the toggles depressed & the toggles depressed & adopt the PLF positionadopt the PLF position
• If you flare too low - flare If you flare too low - flare quickly & PLFquickly & PLF
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ANY QUESTIONS?ANY QUESTIONS?
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Flight DrillsFlight Drills 1.1. Check canopy Check canopy
2. Pump brakes twice 2. Pump brakes twice 3. All round observation 3. All round observation
4. Locate the DZ4. Locate the DZ (move to (move to holding area) holding area)
5. Assess drift 5. Assess drift
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ExperimentExperiment
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The Landing The Landing PatternPattern
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TurbulenceTurbulenceCauses:Causes:thermalsthermals
wind deflected over buildings wind deflected over buildings Effects:Effects:
canopy buffetingcanopy buffetingCure:Cure:
fly on third brakes until fly on third brakes until through turbulencethrough turbulence
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Common ProblemsCommon Problems(Nuisance Factors)(Nuisance Factors)
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Toggle Released Toggle Released Prematurely Prematurely
Release other toggle Release other toggle
and and
carry on with flight drillscarry on with flight drills
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SLIDER SLIDER UPUP
PUMP TOGGLES TWICE
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END CELL, END CELL, CLOSURE & CLOSURE & SLIDER UPSLIDER UP
PUMP TOGGLES
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TWISTSTWISTS
CHECK CANOPY
KICK OUT OF TWISTS
GRASP TOGGLES
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ANY QUESTIONS ?ANY QUESTIONS ?