VERTREP Flashcards
T Line
Obstruction clearance is ensured when the aircraft for which the facility is certified hovers with its rotor hub(s) on or aft of the line.
Ball and T line
This will only appear in combination with a T line when T line does not provide enough clearance for larger rotor aircraft
Dash Line
Obstacle clearance is ensured only when the aircraft for which the facility is certified hovers with the centerline of the aircraft directly over the line. An obstacle free approach is ensured only when the approach is made along the dashed line.
Class 4
Vertrep/hover area (minimum hover height of 5ft) for types of aircraft certified
Class 5
Vertrep/hover ares (high hover with a minimum of 15 ft authorized) for types of aircraft certified.
Four types of Vertrep/hover areas
Type 1, 2, special type 2, 3
Vertrep lighting equipment required when
On all ships designated by CNO for level I/II classes 4,5, and/or 6 helicopter operations for flight deck areas certified only for VERTREP/HIFR
VERTREP lighting equipment
Lighting control panel - not NVD compatible
Homing beacon light - not NVD compatible
Deck edge lights - not NVD compatible
VERTREP approach lineup lights - not NVD compatible
Overhead/forward structure floodlights - compliant
HIFR heading lights - not NVD compatible
Clear/Fowl indicating system - not NVD compatible
VERTREP organizational responsibilities
control officer Cargo supervisor Hookup Man load spotter Static discharge grounding man
Setting flight (VERTREP) detail
Hotel ( hotel one) at the dip
Ship not ready to conduct operations. Display a signal in flight operating area.
ready to conduct flight (VERTREP) operations
Hotel (hotel one) close up
Ship is ready to conduct operations. Display a green signal in flight operating area.
A delay or interruption of evolution
Hotel (hotel one) at the dip.
A temporary delay in operations. The LSE shall give a wave off to the aircraft and a red signal shall be displayed in the helicopter operating area.
Flight (VERTREP)operations complete.
Hotel (hotel one) hauled down
Operations (transfer) complete.
VERTREP can be used to a distinct advantage by
Eliminating the approach, hook up, and disconnect time required in an alongside transfer. This is particularly true during small scale replenishments where less than approx 75 short tons are to be transferred.
VERTREP transfer rates of up to
180 short tons per hour or 120 lifts per hour can be achieved with a CV/CVN, LHA, or LHD type ship with two helicopters in use.
VERTREP winds
A relative headwind of 15-30 knots is considered ideal.
Course change
Pilots conducting VERTREP shall be notified prior to any course change. VERTREP operations may be continued through the turn provided the aircraft commander and HCO deem such operations to be safe.
Winds
Optimum: 330-030
Acceptable: 270-090
Not recommended: all others
Privileged aircraft
With external load
Should have right of way to most direct route from flight deck to flight deck
Burdened aircraft
Without external load
Maneuvers outside and clear of privileged aircraft.
VERTREP distance limitation
Carrying external loads for long distances (over 35 miles for heavy, high density loads and over 25 miles for light, low density loads) should not be considered standard VERTREP procedure
Overfly ships
Aircraft with an external load shall not overfly ships unless operational necessity so dictates.
Ship stationing during unrep
During unrep, wave reinforcement phenomena caused by two ships in proximity may generate disproportionately large waves in moderate sea states. Although wind and deck conditions may be within limits, the possibility of aircraft being struck by a wee while on deck shall be considered before positioning an aircraft on the flight deck or conducting flight operations during UNREP
Pilot endurance
During day VERTREP 6-8 hours is generally accepted as an effective limit of pilot endurance.
During night VERTREP effective limit may be reduced to as few as 2 to 3 hours
Methods of load pickup
Method I - hookup man raises the pendant. Slips eye over helicopter hook, then clears the area
Method II - hookup Man hands pendant to the aircrewman positioned in the charge access door
Method III- hookup man holds the pendant up until the aircrewman in the open carve access hatch guides the pendant onto helicopter hook
Night VERTREP decision
The final decision regarding whether a certified ship is to conduct night VERTREP at night shall be left to the pilot in command
Night VERTREP ships
Ships that are certified class I or class II or are operating under a waiver
Night VERTREP required conditions
One or more of the following conditions shall exist prior to conducting night VERTREP to appropriately certified ships:
- a natural visible horizon is present.
- the drop/pickup zone of the ship to be worked is clearly visible from the aircrafts cockpit whenever the drop/pickup zone of the transferring/receiving ship
Submarine VERTREP decision
The final decision as to the feasibility and safety of the operation rests with the pilot in command.
Attack submarines VERTREP
VERTREP may be conducted on attack submarines during day VFR conditions. The drop zone shall be agreed upon and briefed between the VERTREP control officer and the pilot.
SSBN/SSGN submarines
Day VERTREP operations are feasible on a routine basis. Night VERTREP operations are considered feasible on a more limited basis.
SSBN/SSGN Submarine winds
Magnitude of wind very the deck should be no greater than 20 knots
Headwind component
Ideal winds a are relative at 10-40 degrees on the port bow with wind magnitude between 10-20 knots
SSBN/SSGN VERTREP area
Rectangular on the main deck aft of the sail should be outlined with a 4-in wide high visibility tape (missile hatches 17-20)
SSBN/SSGN VERTREP personnel and communications
First lieutenant, LSE, and transfer petty officer aft of the sail
Communications conducted prior to commencement, should not during actual hovering phase
Cabin seating in VERTREP configuration
Up to five cabin seats may be installed in the logistics/VERTREP or SAR/MEDEVAC configuration. A maximum of four seats may be occupied in any configuration. Litter installation prevents use of SO console seat and instructor seat.
The center rear seat shall be removed if conducting VERTREP
VERTREP qualification
Initial - four field VERTREP practice evolutions or four day shipboard VERTREP evolutions.
Evolution - approach, pickup, transport, and drop off of a practice external load to a simulated or actual ship deck
Maintain currency - four day field or shipboard evolutions in the last 365 days. Initial shall be completed if expired.
Night WARNING for VERTREP
Night shipboard external cargo operations present serious hazards to personnel and equipment and shall not be conducted except for reasons of operational necessity
VERTREP BRIEF
Ship certification/deck utilization VERTREP patterns Come/visuals signals 1. Wave off 2. Fouled deck/load External load hookup/release External load flight (airspeed/angle of bank) Emergency procedures
VERTREP checklist
DO IT
VERTREP power margin
A minimum power margin of 6 percent torque shall be required prior to commencing each VERTREP evolution
SOP: when conducting vertical replenishment operations, a 10 percent power margin shall exist between maximum power available and maximum power required when a load is lifted from the deck.
VERTREP high power warning
Under high power conditions due to flight control mixing, pedal position is not necessarily indicative of tail rotor authority remaining. In particular, under high DA and aircraft gross weight conditions it is possible to achieve maximum tail rotor pitch without obvious indications from pedal position. This condition will manifest in one of two ways: no yaw response despite left pedal input or u commanded right yaw.
ICS terminology
Inbound for right seat pick/drop Hook armed Deck in sight Load hooked up Hookup man is clear Weight is coming on Load fouled Load is clear Clear to go Load riding well Load unstable Pickle pickle pickle Load on deck Hook clear Pilot release hook
ship maneuvering
Ships conducting vertrep shall not maneuver until notifying the pilots.
