NAVAIR 13-1-6.1-1 Life Rafts Flashcards
What is covered in the NAVAIR 13-1-6.1-1 chapter 4?
The LR-1, a one man life raft assembly
What is covered in the NAVAIR 13-1-6.1-1 chapter 6?
The LRU-18/U, a one man life raft assembly
What is covered in the NAVAIR 13-1-6.1-1 chapter 9?
The LRU-13/A, seven man life raft assembly
What is the LR-1 life raft constructed of?
Polychloroprene coated cloth
What are the colors inside and outside of the weathershield in the LR-1?
The weathershield is nonspecular sea blue outside and bright red on the inside
What size and type of thread is used to safety tie the LR-1 ripcord pins?
E thread single
LR-1 measure time of inflation; liferaft shall inflate to designed shape without evidence of restriction in less than______?
One minute
How many pounds you use for the cable proof load test?
50 pounds
What PSIG do you inflate the LR-1 for visual test?
1.0 PSIG
The LR-1 weight of CO2 is 0.50 lbs plus or minus what?
Plus or minus 0.01 pounds
LR-1 leak test fill to 2.0 psig, wait 15 minutes record temp, barometric pressure, and allow to remain undisturbed for how long?
4 hours
After an minimum of four hours test pressure shall not decrease to let than?
1.6 psig from a maximum test pressure of 2.0 psig
LR-1. Tighten coupling nut to life raft inlet valve to a torque value of?
85 plus or minus 5 lbs
LR-1 prepare solution of detergent (MIL-D-16791) consisting of 1/4 to 1/2 once of detergent per _____?
Gallon of water
LR-1. Toluene shall be the primary solvent used in the fabrication or repaired of this assembly. ______ may be used if toluene is not available.
MEK
One patch is completed, allow adhesive to cure a minimum _____ hours.
48 hours
LRU-13/A. Special inspection shall be performed every?
30 days
LRU-13/A. what radio is installed in the LRU-13/A?
AN/URT-33A
LRU-18/U. What material is the LRU-18/U made of?
Heat-sealable, polyurethene-coated nylon cloth
What is the configuration of the LRU-18/U?
It has two separate cells, each comprised of a series of tubes. The upper second, third and fourth tubes are inflated with carbon dioxide and the remaining tubes are inflated orally.
What is the application of the LRU-18/U?
Mandatory for use by all authorized helicopter (Helicopter backpacks) and E-2C aircraft equipped with A/P22P-11 Crew backpack during overwater flights.
What is the ideal temperature to perform maintenance on the LRU-18/U?
68 degrees F (20’ C)
During the beaded inflation handle pull test, what is the the force to which fasteners should snap?
25 lbs
During the leakage test on the LRU-18/U, to how many PSIGs should the CO2 cell be inflated and how many the Oral cell?
CO2 cell shall be inflated to 2.0 and minimum pressure to lose after 4 hours is to 1.6.
Oral cell shall be inflated to 1.0 and lose no more than to 0.6 after 4 hours.
When reinstalling the inflation assembly with a new valve gasket, what is the torque value of the nut onto valve stem?
8 plus or minus 1 in-lb.
When patching the LRU-18/U life rafts, how much larger than the damaged side should the patch be?
One inch larger on all sides
How to secure the tether line to the inflation assembly of the LRU-18/U?
One loop with a lark’s head knot large enough to pass over the entire CO2 assembly, (between anti-chafing disk and life raft). Tighten the knot around the manifold stem. Tack knot with two turns of waxed, size 6 cord, single. Tie with ends of threads with a surgeon’s knot, followed by square knot.
