Life rafts Flashcards
What is designed to “trigger the inflatin of the life raft, so that a survivor may immediatly enter?
Action of Deployment.
What are the prerequisites for gasses used to inflate rafts?
Non combustible, noncorosive, and nonpoisonous.
Why does a multi-place life raft need a manifold valve?
To inflate all the tubes at once.
How is the seat in the LRU-1/P inflated?
Hand pump and topping off valve.
What gas is used to initially inflate the flotation tubes of the 20 man life raft?
CO2N2
How are the boarding ramps on the 20 man inflated?
CO2N2 cylinder
What type of inflation system is used on each flotation tube int eh 25 man raft?
A gas cylinder (reservoir), valve assembly, and jet pump.
How long does the 25 man raft take to inflate?
9 sec
When in the C-17 what subassembly is the 46 man part of?
Emergency survival subsystem
Which raft incorporates the basic features of the AC-9 and is carried on the C-130, KC-135, and CT-43?
AC-20
What could cause a raft not to properly inflate?
Improper charge in cylinder, loose coupling nut, topping off valve open, obstruction in the inlet valve, hole in raft, or a faulty inflation valve.
What do you do with excess sea anchor retention line?
Fake into 8in hanks and secure with #32 rubber-bands.
How long are the accessory kit retention lines?
20ft +- 6in
What is the max repariable damage on the F-2B?
6in
What is the max number of patches allowed on the LUR-17/P?
3
What determines the size and shape of a repair patch?
Size and shape of damage.
What is the purpose of the diffuser on a multiplace life raft?
Break up the direct blast of CO2.
What is used to inflate the 25 man life raft?
Compressed air augmented by ambient air.
How much does th e46 man weigh?
Appx. 200 lbs.
How long should an F-2B take to inflate?
60 sec.
One hour after the function test, what will the compartment differential pressure rang be?
1.5-2.2 PSI
What is the torque range for the CO2 cylinder on the 20 man?
140-150 in/lbs
What is the last thing you must do prior to folding the 20 man?
Remove equalizer tube clamp.
What type of knot do you use to attach the actuation line to the actuation cable on the 20 man?
Bowline.
What type of chord do you use to lace the side flaps on the 20 man wing well container?
8/4.
What is the shape of the 22D23585 when fully inflated?
Decagon.
How often is the 20 man air cylinder hydrostatic tested?
3 years.
Where do you position the jet pumps when packing the 25 man?
The top edge of the case.
What pressure is the 46 man inflated during a leak test?
2 PSI
How long does the 46 man undergo a leak test?
6hrs.
Before hyou pack the 46 man what is the max overall width of the folded raft?
16 in.
What is the max number of patches to be applied to the flotation tupe of a single place raft?
3
What ammount must the patch overlap the damagged area when applying a patch to any life raft?
1.5 in.
When you manufacture an inspection data pocket for a life raft case what size material must be cut and where is the grommet positioned?
4X5in, centered on the 4 in side.
