Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Core 1 20B > Weapons Flash Cards > Flashcards

Weapons Flash Cards

1
Q

List 5 Basic weapons effects

A
  • blast/shock
  • fragmentation
  • cratering/hard target penetration
  • armor penetration
  • incendiary
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

List GP (general purpose) bomb characteristics

A
  • cast steel casing
  • nose and tail fuze wells
  • aerodynamic body shape
  • 50% explosive weight
  • jack of all trades bombs
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the ROT for Mk-82 bomb penetration?

A

1 foot of concrete

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the ROT for Mk-84 bomb penetration?

A

3 feet of concrete

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the ROT for BLU-109B penetration?

A

6 feet of reinforced concrete

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the ROT for BLU-133 penetration?

A

> 22 feet of reinforced concrete

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is a good target for the CBU-97?

Describe why.

A

Best armor on the move killer. Designed for area targets

Smart bomblets with active/passive sensors.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the weight class of the following weapons?

Mk-82
Mk-83
Mk-84

A

500lbs
I000lbs
2000lbs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

List the advantages of GP Bombs

A
  • plentiful
  • good explosive to weight ratio
  • good blast and fragmentation
  • building block for guided weapons and mines
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

List the limitations of GP bombs

A
  • accuracy
  • penetration
  • armor
  • incendiary
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

List the advantages of penetration bombs

A
  • excellent penetration
  • good fragmentation
  • fair blast
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

List the limitations of penetration bombs

A
  • limited numbers
  • requires guidance to maximize weapons effects
  • complicated weaponeering
  • poor incendiary
  • limited fixing
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

For a target with layers of material what is the most effective warhead?

A

Generally speaking penetration warheads

blu-109/113/118/137/122 etc

The BLU-127 A/B which is used in the GBU-57 A/B massive ordnance penetrator. 30000 lb class penetrator weapon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What does the detector do in IR missiles?

A
  1. Senses the target

2. Converts the modulated IR energy into an electrical signal (via capacitance, resistance, and voltage***)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What does the reticle do in IR missiles

A

The reticle modulates IR energy via opaque and clear tracking windows and varies the output of the electrical signal sent to the guidance control system (GCU) based on where the IR energy hits the reticle.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What does AM modulation do on IR missiles?

A

Measures the amount of IR energy that passes through each individual transparent spokes of the wheel (i.e. spin scan).

17
Q

What does FM modulation do on IR missiles?

A

Measures how much time IR energy spends on each transparent spoke of the reticle (i.e. conical scan).

18
Q

What are the three steps to IRCCM & describe their function?

A
  1. Detect (sharp rise in IR energy & kinematics)
  2. Confirm (check increase in energy in another band)
  3. Counter (memory or another response; narrow FOV; spatial awareness (discern between sources))
19
Q

What is semi-active radar guidance?

A

Aircraft tracks target while missiles home in on reflected radar energy (missile has rx radar but no xmit)

20
Q

What are the advantages and disadvantages of semi-active radar?

A

Advantages: Resistant to EA, can be guided immediately, has ability to course correct
Disadvantages: shooter must maintain lock throughout ToF

21
Q

What is active radar guidance?

A

Missile has its own transmit and receive radar

22
Q

What are the advantages and disadvantages of active radar guidance?

A

Advantage:
+ Difficult to jam
+ L&L and multi-targeting (once locked on)

Disadvantage:

  • Complex
  • Limited range (needs support until transmit radar goes active)
  • Might be able to jam TTR radar before missile goes active
23
Q

Radar tracking vs IR?

A

Radar has longer range (BVR shots) but is less maneuverable than IR. IR allows for true L&L (only active radar can)

24
Q

Benefits of pro-nav?

A

Pro-nav (aka lead pursuit) is the most energy efficient intercept as it helps keep LOS rate to target at zero (maximizes range and minimizes energy loss)

25
Q

Laser guided bomb characteristics (what/how)

A
  • Target designated with laser
  • Weapon detects reflected laser energy and guides to the target (seeker must maintain LOS, target must be capable of reflecting IR energy, subject to attenuation)
26
Q

List the pros of LGBs

A 
\+ Precision accuracy
\+ Standoff from SMARMs & AAA
\+ Simple
\+ Can hit targets on the move
\+ Main in loop
27
Q

List the cons of LGBs

A
  • Need good weather (subject to attenuation and battlefield obscurants)
  • Need LOS
  • Requires laser designator
28
Q

List some examples of LGBs

A
  • AGM-65 Maverick
  • AGM-114 Hellfire
  • AGM-176 Griffin
29
Q

What is the accuracy of a LGB based off of?

A

2:

  • G&C (guidance & control) - weapons response to control input
  • TLE (target location error) - accuracy of laser spot

Accuracy = sqrt(G&C^2 + TLE^2

30
Q

Characteristics of GPS bombs?

A
  • GPS-aided coupled to INS guidance
  • Weapon automatically guides itself to target (good in wx, L&L)
  • Guidance control unit (GCU) still accurate with INS only
31
Q

Pros of GPS guided bombs

A

+ Standoff from SMARMS & AAA
+ Adverse wx & battlefield obscurants
+ Multiple delivery platforms
+ Multiple weapons/aimpoints per pass

32
Q

Cons of GPS guided bombs

A
  • No man in loop
  • Unable to hit moving targets
  • GPS jamming susceptible
33
Q

Examples of GPS bombs?

A

JDAM & MOAB

34
Q

What is the accuracy of GPS bombs based off?

A
  1. Nav errors - position handoff, IMU velocity, & GPS error
  2. G&C (guidance and control) - control input
  3. TLE (target location error) accuracy of coordinates

Accuracy = sqrt(Nav^2 + G&C^2 + TLE^2

OR

Accuracy =sqrt(CEP^2 +TLE^2
- Where CEP=Nav + G&C

35
Q

What are the effects of a nuclear blast?

A

Blast itself (over pressure & dynamic pressure), thermal radiation, ionizing radiation, residual radiation

Core 1 20B (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions