DS Dems Stores Flashcards
F1 / F2 Dets:
Composition of ?
TR1 Pellets:
- 98.75% RDX;
- 1.25% Polyethylene Wax.
ASA Composition:
- 68% Dextrinated Lead Azide.
- 29% Lead Styphnate.
- 3% Aluminium Powder
Det Elect Dem F2:
Composition of Type E Fuze Head?
Fuse head :
- LMNR/Potassium Chlorate initiating composition.
- Potassium Chlorate/Charcoal flash composition.
- Nitrocellulose binder/protective coating.
Type E electric fuse head (PCP wafer,
copper foil, nitrocellulose coating), electrical wires (copper wires encased in non-conductive outer sheath),
Resistance of the Det Elect Dem F2 Detonator
0.9 to 1.6 Ohms
F1/F2 Dets - When 1.4S or 1.1B?
BAM M2A1 with 10 x dets only is 1.4S
What is Primer Shotgun 12 Gauge No.209 used for/with?
Non-Electric Shocktube
Det Cord - what set up/tail has shown to protect from ingress of water?
PETN can still detonate with what % of water content?
A 150mm free end (or tail) has been shown to provide protection for the detonating cord from moisture ingress for 24 hours during underwater demolitions.
PETN shown to detonate with 35% water present
Det Non-Elec Dem F1 - Parts
- Rubber Plug Impregnated with carbon
- Aluminium tube
- ASA priming composition
- Granulated TR1
- TR1 Pellets
Detonator Non-Electric Demolition F1
Operation?
- The F1 Detonator, as shown in Figure 1, is prepared for use by removal of the plug, inserting the required length of Fuse Blasting Time (FBT) into the open end of the tube and crimping in place.
- The FBT is lit and burns at its predetermined rate until it reaches the end secured in the detonator.
- At burn completion, the FBT ‘spits’ a flame output onto the ASA priming charge causing it to function.
- The ASA changes the burn output of the FBT to a detonation output by very rapidly burning to detonation this has sufficient energy to cause the detonation of the TR1 composition.
- The TR1 increases the power output to a level that can be used to initiate high explosive charges and detonating cords.
Det Elect Dem F2 Operation
- The F2 Detonator is prepared for use by connecting its electrical leads to a length of firing cable that is attached to an approved electrical initiation device, and attaching the detonator to the target e.g. a length of detonating cord.
- When fired, the electrical energy from the initiation device travels along the firing cable into the detonator lead wires and to the fuse head.
- At the fuse head, the energy passes along the copper foil strips into the bridge wire, which is surrounded by athe fuse head composition.
- The bridge wire is heated by the electric current to a point where initiation of the fuse head composition occurs.
- The resulting flame initiates the ASA priming charge, which rapidly burns to detonation and causes detonation of the TR1 composition.
- The TR1 pellets increase the power output to a level that can be used to initiate high explosive charges or detonating cords..
Shocktubes - different kinds
?? Including the delay relays..??
Beehives
Name the in-service beehive charges?
Charge Demolition Shaped Beehive No.1 6 Inch
Charge Demolition Shaped 150mm No.2 Mk
Fuzehead for Igniter Time Blasting Fuze Electric (ITBFE)?
What type and material?
Type E Fuzehead
Copper Bridgewire
Operation of the M81
- The FBT or Shock Tube is inserted in the igniter and secured.
- Then the pull ring is pulled, the pull rod and firing pin are carried back against increasing spring compression until the split cylinder of the striker assembly slips over the release washer.
- The release washer forces open the split cylinder and disengages the striker assembly from the pull rod.
- This permits the compressed spring to re–assert itself thus driving the striker assembly onto the primer.
- This action initiates the primer and the resultant spit of flame ignites the Time Blasting Fuse or Shock Tube. - The gases resulting from initiation are emitted through the venting passage in the pull rod to the atmosphere.
- The venting passage is open to the atmosphere only when the rod is in the fired position and therefore does not affect the weatherproof feature of the igniter.
What is the ITBF M81 used for?
- Is a pull-type device used to initiate FBT and Shock Tube.
- Intended for use under all weather conditions as well as underwater.
What part of the plugs (Shipping plug and weatherproof plug) are removed for shock tube vs FBT?
Shock tube - Remove weatherproofing plug
FBT - remove weatherproofing and shipping plugs
What use for
Matches Wind and Water (W/W) Proof? (3)
Burn time?
- A/C survival kits
- SDK
- IED Dems Kit
> /= 8 sec
What is the Detonator Delay Relay Connector (DRC) designed to do?
What is it made of and fill?
- To introduce a 17ms (+/-3ms) delay into det cord
- polyethylene tube dusted with HMX & aluminium powder, delay detonators at each end.
Non-Electric Shock Tube
- VoD?
- Fill?
VoD - 2,000 (+/-300) m/sec
dusted with HMX & aluminium powder,
Primer 38 gram
- Fill?
- VoD?
2 x TR1 pellets consisting of:
- RDX 97.5%
- Polyethylene wax 1.25%
8,800 m/s
How much taggant is to be in explosives, IAW MARPLEX Convention?
In Australia, the MARPLEX convention requires a taggant quantity of greater than 1.0% to be present in plastic explosives
Primer Shotgun 12 Gauge No 209
What used for?
Is installed in a Non-elect Shocktube Initiator IOT initiate non-elect shocktube
Pentex G Booster
What is it designed for?
Designed as a booster in shotholes for slurried/poured explosives (eg. ANFO)
Advanced Cutting Explosive (ACE)
- Used as a what?
- What fill?
- What does the foam sheath allow for?
- Material and angle of the liner?
- Flexible Linear Cutting Charge (FLSC)
- RDX-based
- The sheath also provides an integrated ‘stand-off’ to allow for maximum effectiveness of the ‘shaped charge’ effect
- Copper; 95 degrees
High Explosive Sheet (“Sheet-Ex”)
How to prepare for use?
the required shape and quantity of sheeting is cut from the roll using a sharp non-ferrous knife on a non-ferrous block.
What is the aim of the MARPLEX Convention?
To deter misuse of PE by requiring a prescribed chemical detection agent (“marker”) be incorporated into the manufacture of PE.
Charge Demolition, No.1, 6 Inch Beehive
- Designed to penetrate (4+). Includes what other roles?
- Expl. Fill and qty ?
- armour plate, mild steel, hard and soft rock, and reinforced concrete.
- Includes runway and road disruption and bore holes for engineering purposes
- RDX 95%, wax 5% (1.5kg)
AusDisc
- Fill and qty
- Liner material
- Setting distance?
- PE 4 - 190g
- low carbon steel liner
- Twice the diameter (92mm) = 184mm
Charge Demolition Shaped 11lb No.14 Mk 1 Hayrick
What used against?
How can it be used (numbers)?
Explosive fill - main, booster?
- Used against steel reinforced concrete
- Individually or as a necklace of 5 units
- Comp B; TR1 Primer
Charge Demolition 230g Cart PE No.4
Performance?
Main Fill?
- VoD?
- 25g of PE4 shall perforate 6mm steel plate
- RDX 87%
- Lithium Slerate Grease 11%
- PD 1%
- 750 m/s
Charge Demolition Block 600g Mk5
- Main Fill?
- Primer?
- VoD?
- RDX/TNT Grade A Type 1
- Primer 38g included
- 7,500 m/s
Standard Demolition Kit (SDK)
Part 1 consists of?
Part 2 consists of?
NEQ
Part 1 - FBT M700 2 x 8m - Cord Detonating Camcord x 20m - Primer 38g x 10 - Chg Dem Blk 600g Mk5 x 5 - Matches W/W Prof x 1 bottle (25) - AC 430 (DMEO Log) Part 2 - 10 x Det Non-Elec Dem F1
3800
Fuze Blasting Time M700
Burning time limits?
Why?
What testing?
Band / double band marking measurements?
- 36 - 48 sec per 300mm
- For predictable delay during EO tasks
- dispose first 300mm; test burn time on 300mm
- Single band every 450mm; double every 2250mm.
Fuze Instantaneous L1A1
Used for?
BNS and boobytrap training
Charge Demolition Bangalore Torpedo L26A1
- How many can be connected?
- Main fill?
- Detonator Housing fill?
Roles? (2)
- Maximum of 8 connected
- DPX1 x 1.95kg (1950g)
- DPX10 x 70g
- Defeat Razor or Barbed wire entanglements
- Create lane for minefield clearance
- eBreach sandbars
Charge Demolition Bangalore Torpedo L26A1 Describe each below: L26A1 L27A1 L28A1 - Main components?
Tactical set Drill version - blue, inert Instructional version - OD, inert; with cutaway sections - Tube Assembly - Detonator Assembly - Nose Cone - Tactical Carry Sling
Personnel Explosive Lane Clearance Charge (PELCC)
How packaged/transported?
How many charges in total?
Max clearing length?
- In 2 x backpacks
- 248 charges @ 22cm intervals
- 54.3m
Ammonium Nitrate Technical Prilled
When mixed with fuel oil, produces ANFO
- In ADF, usually ~ 6% diesel by weight
Not an explosive until mixed
What is Blackpowder used for? (2)
- To train EDDs in the detection of gunpowder related products
- For displays and firing of historical weapons
Firing Device Demolition F1A1
Combination Boobytrap
Used with?
With the Primer Perc F4:
Fuze Instantaneous L1A1
FBT M700
FBT L1A2 (Obsolescent)
Det Elec Dem F2 - Parts
- Silicon Rubber Sleeve
- Fuzehead assembly
- ASA priming composition
- Granulated TR1
- TR1 Pellets
- Aluminium tube
- Protective cover
ITBFE - Parts
Lead wires - insulated IOT prevent accidental initiation by RF interference E Type Fuzehead Copper tube Vent hole Integral stop FBT housing
Destructor Incendiary Mk II
- Use
- Main Fill and qty
- Effect (output)
- How ignited?
Destroy incendiary materials
- SR547 27g
- Effect: intense flame 300mm for 60 secs
- Electric igniter with hole for FBT
Charge Demolition Plastic Pack MK AN1 Mod1
Main Fill, and makeup by %?
Qty of fill:
Components?
PE4 - RDX 87%, Lithium Stearate Grease 11%, PD 1%
~1.8kg
PE4 w/ det cord, canvas pack and cordage
Charge Demolition Plastic Pack MK AN1 Mod1
What is attached to the det cord and its purpose?
Sleeve Fuse Sealing
-crimped to the end to prevent moisture/water ingress
Primer 20gm Slip On Booster MM30
Purpose?
Main Fill and Qty?
Other purpose?
- Is it affected by moisture?
Booster charge
PETN 20gm
As a primer small diameter packaged slurries, water gels or emulsions
- No
Det Non-Elec Dem F1
Purpose of Rubber Plug??
To mitigate electrostatic discharge and stop ingress of moisture and foreign objects
Nom for the Beehive Chg
Name two others
Chg Dem Shaped Beehive No1, 6 inch
AUSDISC
Chg Dem 11lb No.14 Mk 1, Hayrick
