Revision Flashcards
When does barrel obstruction occur when the sight is set at 0000 Mils
Between 4600 -5900 Mils
When should the C2 sight be tested
-before carrying out any range practise
-before any operation or going into action
-whenever the accuracy of the sight is in doubt
-after repair to instruments or bipod
Causes of misfire
-faulty primary
-misplaced or broken obturating ring
-broken,burred or loose firing pin
-fouling in the barrel
10 point key check list
1)base plate socket aligned
2)breech plug and firing pin uppermost
3)barrel clamp in correct position and locked
4)muzzle cover on
5)sight locked in bracket set elevation bubble on
6)aiming post positioned correctly
7)buffers central,200mm of elevation shaft exposed
8)leg locking wheel hand tight
9)bipod feet at right angle,elevation leans to barrel
10)round prepared properly
Max range illum
Primary-N/A
Ch-1=800m
Ch-2=1750m
Ch-3=2600m
Ch-4=3400m
Ch-5=4100m
Ch-6=4800m
Max ranges of MK4 HE (&WP)
Primary=475m
Ch-1=1525m
Ch-2=2475m
Ch-3=3375m
Ch-4=4200m
Ch-5=4950m
Ch-6=5675m
Deployment characteristics
(HMGWV)
High trajectory
Mobility
Ground
Weight of stores
Vulnerability
Fire power characteristics
(Beachloaf)
Beaten zone
Effects of damp
Accuracy
Consistency
High rate of fire
Long time of flight
Obscure targets
Ammunition
Flexibility
Aim of mortar fire
The aim of mortar fire is to support friendly forces by killing the enemy neutralising his fire and deny him the use of the ground
The aim of adjustment
The aim of of adjustment is to obtain an accurate charge,bearing and elevation to the target with minimum expenditure of time and ammunition so that effective fire can be bought to bear on that target
Uses of smoke
(STRICT)
Screening
Target indication
Reference points
Incendiary
Casualty’s
Target adjustment
Reasons for adjustment
(HAM with cheese)
Human error
Altitude
Meteor
Wind
Charge temperature
Methods of adjustment
Bracketing
Creeping
Direct
Fall of shot
Considerations during adjustment
-if round well of direction line correct only onto direction line and see another round.
-if round considerably +/- of target make bold correction into error and see another round.
-if round is heard & not seen it has probably fallen into dead ground study map & ground make bold correction to place next round in the open use of smoke or delayed to be considered smoke good for lost rounds.
-if not heard or seen fire again on same bearing and elevation as the round was probably a blind.
Types of fire plan
Timed
On call
Silently timed
FCA-
Tgt’s
OP’s
ML
FSCM
Safety arcs
Battery life
It can store
1000 tgt’s
40 OP’s
50 ML
99 FSCM’s
99 safety arcs
Battery life 4.5-5.5 hrs
FCA accuracy of bearing and elevation
It can give a bearing and elevation accurate to +/- 1Mil
Selection of mortar line
Pretty
Little
Girls
Always
Come
Home
Crying
Protection
Location
Ground
Alternative position
Communications
Hides
Concealment
Info a B MFC should receive from A MFC in anchor OP brief
(TOROLR)
Target locations
Outline of plan
Restrictions on adjustment
Outline timings
Last safe moment
Re-org locations
Degrees of guarantee
Fire target-
Corrections no more then 100m for line 50m for range
Predicted target-
Corrections no greater then 400m for line 200m for range
Silently marked target-
Corrections above predicted
Fact is effecting illum
(BBC good fox woman)
Battle group stap
Bedding in
Cloud base
Ground
Friendly forces
Wind
Applications before firing for effect
(FART)
Fused used
Ammunition to be used
Route of friendly forces and lay of the ground
Target size
Selection of a OP
(MCCPVRNO)
Manning
Concealment
Communications
Protection
Vehicles
Radio’s
Night viewing equipment
Observation
MFC tasks
(SLAP)
Surveillance and confirmation of BG STAP
Liason with CMDR’s and the provisions of advice on mortaring matters including simple fire planning
Adjustment and engagment of targets
Passage of tactical information which should include: (shellreps,mortoreps, and jam reps and NBC reports basic sitreps)
Reason for adjusting the belt
1) danger to friendly forces
2) inaccurate target coverage of subsequent target at different ranges
Rules of observation
(RSM wants men
Remember the time of flight
Smoke if observation of HE is difficult
Measure using graticals in bino’s or hand angles (don’t guess!)
Watch for fall of shot with naked eyes then bino’s
Use MKA formula
Observation of fire
(My right scrotum vibrates)
MFC’s view of the ground
Relative position of MFC, the fall of shot and the mortars
Slope of the ground in target area
Visibility
Factors effecting smoke
(WITH G)
Wind
Ideal weather
Temperature
Humidity
Ground
Considerations before adjustment
(SWLPCK)
Safety of friendly forces
Wind
Lines of fire
Problem target
Commanders adjustment policy
K to target (from MFC/observer)
What a MFC needs to no before crossing the LOD
(TPTPSHORNFLN)
Targets NO’s
Platoon objectives
Targets not adjusted by fire
Platoon re-org location
Safety limits
H-hour
On call section
Routes
Nick names
Fire plan
Lights signals
New direction line
White phos safe handling rules
1)WP rounds must be checked regularly for leakages. If there is any visible signs the round must be set aside to be destroyed.
2)WP rounds must not be left in direct rays of the sun. Adequate shade must be positioned over the rounds
3)WP rounds are to be stacked separately from other natures of ammunition.
4)when the rounds have been prepared for firing and position next to the mortar,the bottom row of ammunition must raised off the ground to allow adequate ventilation. This can be achieved by positioning the lids of ammunition cases under the thread of container, this elevating the front end. If not possible another method to be used.
5)when covering with poncho/tarpaulin canopy the cover must be raised to allow ventilation.
6)any WP that are dropped at anytime must be put to one side and destroyed.
Wet weather precautions
1)the muzzle cover must always be in position when not firing.
2)the bore must remain perfectly dry at all times
3)prepared ammunition must be returned to the case tail fin first never left open
4)additional protection (e.g a poncho) must be made available during prolonged wet weather and in extreme conditions case loss must be replaced.
5)complete turnover of ammunition in ammo pits must be ensured to prevent deterioration.
6)if ammo does get wet all these precautions,it is essential that all of it is throughly dried before firing. Special care must be taken to ensure that all flash holes are free from water. When operating in extreme cold it is absolutely essential that the flash holes in the tail unit are clear from ice before firing.
7)ammo must be stacked so that the open ends of the cases do not point directly into prevailing weather.
Rates for a smoke screen
Ideal weather - 4
Moderate conditions - 8
Bad conditions - 12
Uses of illum
General surveillance
Co-ord illum
Harassment
General
Principals of fire planning
(SSCCF)
Simplicity
Surprise
Concentration of fire
Co-operation
Flexibility
Opertational safety distances
Rule 1: the adjustment safety distance
Adjustment safety distance is 700m
900m for overhead
Operational safety
Rule 2 : the predicted safety distance
Predicted safety distance. Is 400m from friendly forces
Operational safety l
Rule 3 : the safety limit
Mortar line more than 3400m from target : 300m
Mortar line less than 3400m from target: 250m
Inside closed down APC’s : 150m
Dug in and under cover : reduced by 150m
Closed down tanks : no safety limit
Normal safety distance
1100m
Reduced safety distance
950m
Types of advance
Advance to contact
Advance in contact
The pursuit
Principles in the advance
Intelligence
Surprise
Momentum
Battle groupings in the advance
Brigade recce
Unit recce
Advance guard
Main body
Screen guard
Rear guard
Movement of mortar lines
Hide to hide
ML to ML
Move continually
Leap frogging
Caterpillar method
Principles of an attack
Surprise
Simplicity
Concentration
Reasons for withdrawal
-Results of defeat
-Avoid battle
-Draw enemy into different area for battle
-confirm to friendly forces movement
-allow use of force else where
-gain time
-logistic considerations
Principles of withdrawal
Flexibility
Simple plan
Clear orders
Offensive action
Action
A method of deploying the mortars and normally having them paralleled by the most accurate means. The emphasis being placed on a good belt of fire to permit effective engagement of targets over a wide arc and at varying ranges.
Quick action
A speedy method of deploying the mortars. The emphasis being placed on a fast engagement of a single target
