Transcript Tracking NS 302

FAS scenario using STREAM
w/ probe coupling
• Remating line attached to probe and
messenger to hold rig in place in case of
slipping
• Receiving ship requests delivery ship to
commence pumping
• Upon completion, usually 450 gal in hose
• fuel removed by blowdown, back suction, or
pig methods
• Remating line removed and manual release
lever tripped
From NROTC, 12-22-2007
FAS scenario using STREAM
w/ probe coupling
• Delivery ship hauls in hose rig and detensions spanwire
• Receiving ship trips pelican hook upon word
from delivery ship and eases wire clear of
ship
• All lines returned to delivery ship
REPLENISHMENT AT SEA
Replenishment at Sea
• Mission = safe delivery of maximum
cargo in minimum time
• Type of transfer rig used depends on
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type and quantity of cargo
capacity of rig
weight and size of heaviest load
weather/sea conditions
Missile/Cargo STREAM
• Most common and preferred rig
• Uses ram tensioner on delivery ship to
maintain standard tension on highline
• Tensioned highline supports trolley which
carries load
• inhaul line - tends from trolley to delivery ship
• outhaul line - tends from trolley to receiving ship
Personnel STREAM
• Method of transferring personnel
underway
• Rig uses highline winch and ram
tensioner to maintain tension on
highline
• Suspended transfer chair (bosn’ chair)
on STREAM trolley
• inhaul/outhaul lines transport chair
Synthetic Highline
• Used to transfer personnel, provisions
and light freight
• Highline is 4-inch double braided
polyester line hand tended by minimum
25 personnel
• Inhaul/outhaul require minimum of 10
personnel each
• Transfer chair attached to trolley that
rides on highline
• Max load capacity 600 lbs
Safety precautions for
transferring personnel
• Dummy load used as test load
• Transfer chair designed with flotation
device
• If chair falls into water, let all lines go
and allow it to run free
• Not recommended for night/heavy
weather
VERTREP
VERTREP
• Capability of augmenting and enhancing
alongside replenishment by transfer of
cargo and personnel via helicopter from
one ship to other
• utilizes CH-46 helicopters
VERTREP Advantages
• Reduction in overall time required to replenish
a force
• Reduction in time screening ships are off
station
• Capable of replenishing ships in dispersed
formation
• Capable of replenishing ships in heavy
weather when alongside transfer difficult
• Approach, hook-up, and disconnect time
required to go alongside eliminated
VERTREP Disadvantages
• Transfer rate is lower than that of
CONREP for large quantities of cargo
• NIGHT - lower delivery rate due to
reduced visibility, depth perception, and
visual references for pilot
Factors affecting VERTREP
• Wind
• relative wind 15-30 knots ideal
• true winds from 330-030 is optimum
• helos should take-off and make approaches
into wind
• Ship stationing
• alongside, lifeguard station, screen
stations, or anchor
• night - receiving ship abeam
• Ship-produced interference
• hot stack gas over pick-up/drop area
Factors affecting VERTREP
• Temperature/Atmospheric Pressure
• temp increase = lift decrease
• pressure decrease = lift decreases
• Helicopter pilot fatigue
• 6-8 hours pilot endurance during day
• 2-3 hours pilot endurance at night
• Helicopter fuel loading
• full tank subtracts amount of cargo that
can be lifted
VERTREP
Procedures
• Receiving ship
stationed within
reasonable range
• Simultaneous
VERTREP/CONREP
possible
VERTREP
Receiving Ship
flies HOTEL ONE
during VERTREPs
Deck Status Lights
• Red light - fouled deck
• landing/take-off prohibited
• Amber light - engage/disengage rotors
• Green light - clear deck
• landing/take-off permitted
VERTREP Players
• Helicopter Control Officer (HCO)
• white jersey
• supervises all flight ops and safety
• Landing Signals Officer (LSO)
• white jersey
• Pilot on deck assisting helo with landing
• Landing Signalman Enlisted (LSE)
• yellow jersey
• visually signals movements of helo
• Chock and chain
• blue jerseys
• secure/unsecure helo on deck
• Fueling team
• purple jerseys
VERTREP Players
• Firefighting Team
• red jerseys
• Damage Control Assistant (DCA)
• supervises all firefighting efforts
VERTREP Procedures
• Maximum amount of cargo staged on delivery
ship
• Helo flies over load on delivery deck
• Hook-up man slips eye of pendant over cargo
hook
• Helo flies over to receiving deck
• once load lowered, pendant slack and helo
releases cargo
• load broken down and cleared from flight deck
drop zone
• Personnel transfer by hoist
VERTREP Safety
1. All flight deck personnel wear a colorcoded cranial, color-coded MK 1 inflatable
lifevest, long sleeve jersey, safety shoes,
and pair of goggles.
2. No loose clothing or hats.
3. Keep visitors away from the pick-up
area.
4. NEVER try to steady a swinging load.
5. Keep radio comms to the helo at a
minimum to prevent pilot distraction.
VERTREP Safety
6. DO NOT create foreign object damage
(FOD)
7. Do not allow hook-up man to position
himself between load and edge of flight
deck
8. NO flash cameras
Homework
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Friday – U/W Watchstanding
Monday – Inport Watchstanding
Wed – Exam Review
Friday - Exam #3 (05 April)
Read
• Seamanship Chapter 2
• Watch Officer’s Guide Chapters 1-3, 5, 11,
17, Appendix A