SKU-10/A Unit PR
What is the CO2 charge weight for the LRU-23/P?
0.49-0.51 lb
How much heavier is CO2 than air?
1.5x
Approximately how much oxygen does the emergency O2 system provide?
10 Minutes
What is the volume and pressure of the SKU-10/A emergency oxygen system?
100 cubic inches, 1,800 PSI
How long is the inflation valve actuating line?
15 inches total, 5 inches or less when tied
What psi is the frangible safety disc on the pump head designed to rupture at?
2,650-3,000psi
How long must the rucksack dropline be when used? New?
26 feet 4 inches, +/- 12 inches (used) 26 feet 4 inches, +/- 2 inches (new)
How many psi is the CO2 charging pump designed to?
3,500 psi working pressure
How much liquid and gaseous CO2 does a standard 50-lb CO2 supply cylinder contain when fully charged?
38 lb of liquid and 12 lb of gaseous, at 70 degrees F
How many times its original volume does liquid CO2 under pressure expand to when returning to its gaseous state?
450x
What pressure does CO2 liquify at?
600 psi below a temperature of 88f
What is the service life for the AN/URT-140 battery?
720 days from the date of installation.
What percentage of the liquid CO2 from the main supply cylinder is the CO2 charging pump capable of transferring?
80%
What three things must CO2 used in the Navy/Marine Corps be?
99.5% pure Acid Free Have a maximum water content of one percent
What may result from releasing high-pressure oxygen through restriction of the filler valve?
A fire or an explosion due to generated heat.
What is the LRU-23/P?
A single-man, inflatable liferaft used by aircrew members forced down at sea or over land.
What radio does the SKU-10/A utilize?
AN/URT-140
What is the SKU-10 a container for?
An emergency oxygen system One-Man liferaft Survival Items
What is the primary means of activation for the Emergency oxygen system?
Automatic activation via a lanyard attached to the cockpit floor.
Is the FLU-6/P Modified Inflation Valve manually or automatically activated.
Both.
What does the inflation assembly of the liferaft consist of?
CO2 cylinder and FLU-6/P Modified Inflation Valve
How many major sub assemblies does the SKU-10/A have?
Eight
What aircraft is the SKU-10 designed for use with?
F/A-18 (C through F)
What information must be included on the CO2 cylinder markings?
Gross weight, tare weight, and weight of CO2
Who shall perform the Calendar/Phase inspection and the rigging/packing of the SKU-10/A?
I-level
Who shall perform the liferaft's calendar/phase inspection?
I-level
Where is the emergency oxygen pressure gauge located?
In the left thigh support, under the cushion
How long shall the liferaft inflate to the design shape in during the functional test?
Less than one minute
What state will the recharge unit pump CO2?
Liquid only
When the Onboard Oxygen Generating System (OBOGS/O2) system fails, is the emergency oxygen system manually or automatically activated?
Manually
How must the floor and canopy weather shield be inflated?
Manually via oral valves
What shall the liferaft's calendar/phase inspection be performed in accordance with/
NAVAIR 13-1-6.1-1
What manual is used during the Calendar/Phase inspection and the rigging/packing of the SKU-10/A?
NAVAIR 13-1-6.3-2
What manual shall be referenced for the AN/URT-140?
NAVAIR 16-30URT-140-1
In what case shall the calendar/phase interval exceed 720 days?
None. In no case. Huehuehuehue
Who performs special inspections of the SKU-10/A survival kit?
O level
Who performs visual type inspections on the SKU-10/A survival kit?
O-level line personnel (plane captain) or delegated aircrew members who have been qualified.
How many times is the replacement of the top cover panel of the seat authorized?
Once for each seat cushion assembly
When is the servicing of the emergency oxygen system accomplished?
Only after removal of the survival kit from the aircraft.
Where is the manual oxygen release handle located?
Outboard of the aircrew member's left thigh
What does the lid assembly (upper container) include?
Oxygen Equipment Two adjustable lap belts for the Koch fittings
If it is necessary to release pressure in the oxygen system before filling, what should be done?
Pull the emergency oxygen lanyard.
What kind of oil should be used for oil changes, and how often?
SAE 30W, every 24 months or when dirty.
In what form is all authorized repairs and modifications to the SKU-10/A documented?
Seat Survival Kit Record (OPNAV 4790/137)
What is repair of the Cushion Assemblies limited to?
Sewing loose or open seams, broken stitches, and small rips and tears
What does the rucksack assembly include?
Survival Equipment Liferaft assembly (LRU-23/P)
Which section of the liferaft is inflated by the CO2 cylinder?
The flotation tube
What does the Calendar/Phase inspection cycle of the survival kit corrospond with, and how many days is this cycle?
The parachute repack cycle of 720 days
The primary function of the SKU-10 is...
To serve as a seat for the aircrew member.
What are the 5 types of visual inspections performed on the SKU-10/A survival kit?
Turnaround/Daily/Preflight/Postflight/Transfer
What type of cord is the inflation valve actuating line made of?
Type III Nylon Cord
What is the service life for the AN/URT-140 radio beacon
Until it fails inspection and is beyond repair capability
What form is the completion and date of the inspection documented in?
VIDS/MAF (OPNAV 4790/60
What four things does the Calendar/Phase Inspection consist of?
Visual Inspection Functional Check Purging and charging of the Emergency Oxygen System Rigging and Packing
When are conditional inspections required?
When a specific situation or set of conditions dictates (for example, a hard-landing inspection) or Whenever an inspection is ordered by a higher authority that is not ordered by a TD
When is the Radio Beacon actuated?
When the aircrew member ejects
Where are the lock receptacles located?
at the lower forward and lower aft corners of the ejection seat.
What color are the markings on the CO2 cylinder, and in what size?
black letter, 1/4 in. high
Is liquid or gaseous CO2 more widely used in the Navy/Marine Corps.
liquid
What material is the seat lid of the SKU-10/A constructed of?
molded fiberglass
What is the service life of the liferaft?
until it fails calendar inspection and is beyond authorized repair-ability (condition rather than age)
When shall an Acceptance inspection be performed
when a survival kit is placed into service or already installed in an aircraft received from another organization
