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 de-

tensions 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• 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

VERTREPProcedures

• Receiving ship stationed within reasonable range

• Simultaneous VERTREP/CONREP possible

VERTREP

Receiving Shipflies HOTEL ONEduring 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 Safety1. All flight deck personnel wear a color-coded 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 Safety6. DO NOT create foreign object damage (FOD)7. Do not allow hook-up man to position himself between load and edge of flight deck8. NO flash cameras

Homework

• 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