Parachute's and Environmental control Flashcards
Name the styles of personnel parachute systems.
Seat, chest, back, and recovery.
Which parachute style is preferred for general use and why?
BA it hugs the body and takes up less space.
What is the difference between a personnel parachute and a recovery system?
Personnel = self contained Recovery = integrated component system
How is zero-zero defined for the ACES II?
Can be operated with zero speed/altitude.
Name the major components of the automatic back parachute.
Canopy, pack harness, automatic ripcord release.
When does the type of parachute assembly change?
Only when a major component other than the release is changed.
Describe the C-9 canopy.
Multi-colored, 28 ft diameter, flat circular, nylon, lifting drag surface of a parachute.
Where is the thong located on the C-9 canopy?
Line 14, 19in above canopy locking loop or 59in above the lower lateral band.
What type of canopy release is installed on the BA parachute pack and harness?
PCU-4/P
What action does a pilot take to aid in untwisting suspension lines and/or risers?
Reach behind head, grab lines, and vigorously kick.
What is the difference between a full and partial inversion?
Full= canopy inside out Partial= figure 8
What is the last resort for clearing a line over?
Cut offending lines.
What is the ideal climet when working with parachutes.
75 degrees 60%
Why is relative humidity and temp. important?
Prevent static, and condensation.
What is used to record measurements on a hydro-thermograph?
circular graph paper in front.
What device is being used to replace the older style hydro-thermograph?
Hydro-thermometer.
Describe inspection criteria for the hygro-thermometer.
Cracks/damage to display, and batteries for corrosion/proper installation.
What is the expected service life of the hygro-thermometer batteries?
300 days of constant use.
How often do you check and record the readings when properly using the hygrothermometer?
3 times a day.
What are electric hoists used for in aircraft flight equipment shops?
Raise and lower chutes in drying tower.
How many parachutes may be lifted with a single hoist?
1 at a time.
What type of PPE is used inside the drying tower?
Helmet, goggles, and gloves.
Where do you attach the apex of the chute when using a hoist?
In the saddle of the hook?
When do you visually inspect hoists?
Daily and prior to use.
What do you inspect the wire rope for?
Fraying, cuts, cursed, kinks, broken strand, worn areas, corrosion, and broken wire,
When must you perform operational and load tests on lifting devices?
Initial installation, after repairs, or 12 months of inactivity.
What can you tell if you cant see the aneroid edge through the inspection view port when performing the 30 day inspection of the Scot release?
Your either above 6500ft or the aneroid is leaking/defective after being compared to other units.
How often do you perform a routine inspection of personnel parachutes?
30days
What happens when canopy materials are rubbed together during washing?
Threads shift leaving holes.
What action do you take when nylon harnesses come in contact with salt water.
Rinse with in 24 hours and dry.
What cleaning solvents are preferred for use in spot cleaning?
Tetrachloroethylene and perchloroethylene.
What are three approved methods for temporarily storing packed parachutes?
Hang on metal racks, wooden pegs, or placed in wooden bins.
What is the recommended climate for parachute storage areas?
50-95 degrees F , and 25-80%
In general how are parachutes shipped from base to base?
As separate components.
What action is taken with metal parts prior to shipping parachutes?
Wrap in grease proof, acid free barrier.
How many DD forms 1574 do you initiate and where do you place them when shipping a packed and serviceable parachute?
2, 1 attached to the chute, and the other attached to the outside of the box.
