Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
21 Cards in this Set
- Front
- Back
|
What type of starting system does the retrieve system assembly on the E-28 arresting gear use? |
Electric |
|
|
Describe E-28 |
+ Max a/c weight - 78000 lbs + max a/c engaging speed - 160 knots + arresting engine gross weight - 11700 lbs |
|
|
What is the total number of cylinders in the engine of the retrieve assembly of the E-28 arresting gear? |
Four |
|
|
Note! |
During runout, the kinetic energy of the arrested a/c is absorted by the rotary, hydrodynamic arresting engines |
|
|
During an a/c arrestment with the E-28 arresting gear, what reaction actually applies a braking force on the a/c, bringing it to a stop? |
Fluid resistance |
|
|
Describe the fluid resistance |
The fluid resistance decreases the rotational speed of the drums. This action slows down the purchase tape payout, which in turn, applies a braking force on the a/c, and the ensuring fluid turbulence converts the a/c's kinetic energy into heat |
|
|
What is the width of the E-28 purchase tape? |
8 inches |
|
|
What is the thickness of the E-28 purchase tape? |
0.344 (1/3") of an inch |
|
|
Which of the following indicates that cross deck pendant of the E-28 arresting gear is no longer under the required tension? |
Strobe light ( the pretension warning system strobe light flashes when the deck pendant pretension is lost) |
|
|
The tape pressure roller of the E-28 arresting gear is under tension by the... |
Springs |
|
|
What is the function of the retrieve engine assembly on the E-28 arresting gear? |
Rewind and tension tape |
|
|
Runway width and number of supports required |
+ 150 ft - 8 + 200 ft - 10 + 250 ft - 12 + 300 ft - 14 + 400 ft - 16 |
|
|
How many feet are the donut wire supports positioned apart from each other? |
14 feet |
|
|
How would you identify the original and exact location of cross deck pendant wire support positions on the runway? |
Paint marks |
|
|
Wire supports must be replaced when they show excessive wear and have radical cracks of... or longer |
1 inch or when the minimum deck pendant height cannot be attained because of excessive wear |
|
|
What is the minimum cable clearance of the cross deck pendant? |
2 inches |
|
|
The cross deck pendant is made of what type of wire? |
Non-rotating |
|
|
How often is a functional check performed on the E-28 arresting gear? |
Every 30 days |
|
|
What is the service life of the hydraulic fluid in the arresting engine? |
24 months |
|
|
What is a dynamometer? |
A dynamometer is an instrument of measuring force or energy |
|
|
Manuals for E-28 emergency runway arresting gear |
NAVAIR 51-5-31 |
