37 HANDLING OF UNEXPLODED ORDNANCE
The following information, of concern mainly to fishing vessels, is being published for the benefit of any other vessels which may have occasion to draw nets or trawls:
1 Fishermen operating off the coasts of Canada are warned that both non-explosive and explosive ordnance may be discovered in normal fishing areas. These ordnance items may be brought to the surface in nets or trawls.
2 Non-explosive ordnance such as practice torpedoes will normally be painted bright orange, smaller non-explosive ordnance will normally be a dark or light blue. Any item which cannot be readily identified by sight as non-explosive ordnance should be treated as explosive in character. Explosive ordnance small or large will normally be painted or marked in yellow, red or green. If there is any doubt about the identity of any object brought up by nets or trawls it should be considered as an explosive.
Practice ammunition still dangerous:
a. Orange torpedo could have some Otto Fuel left in it;
b. The dark blue was the old marking for dummy ammunition now it is bronze;
c. Colour Codes Above 20mm
d. When a colour for a primary role does not in itself indicate the presence of an explosive or other hazardous material, the presence of these materials may be indicated by narrow bands or by letters applied in an appropriate colour of the code.
3 Explosive ordnance may still be dangerous even if they have been in the water for many years. Suspected explosive ordnance should be treated with great care, and if observed in the net or trawl while still outboard, no attempt should be made to bring it alongside or aboard. The trawl should be lowered and where possible, towed clear of regular fishing grounds before cutting away the net as necessary.
4 In the event that a suspected explosive ordnance item cannot be released or freed by cutting the net or line, the following actions are advised:
(i) Stream the object as far aft as possible.
(ii) Notify nearest Joint Rescue Coordination Centre (JRCC) and stand by for instructions or help.
(iii) Position the crew at forward end of vessel keeping the deck house between themselves and the object astern.
(iv) Maintain steerageway as necessary to stay in the area until help or instructions arrive.
5 In the event of a suspected ordnance item not being detected until the contents of the trawl have been discharged on deck, the following action should be taken:
(i) Great care should be taken to avoid bumping the object.
(ii) It should be stowed on deck away from heat and vibration.
(iii) It should be firmly chocked up and well secured to prevent movement.
(iv) It should be kept covered up and dampened down. (This is important because any explosive which may have become exposed to the atmosphere is liable to become very sensitive to shock if allowed to dry out).
(v) Notify nearest Joint Rescue Coordination Centre (JRCC) and stand by for instructions. The JRCC will contact the nearest EOD team for direction.
6 A ship with a suspected explosive item on board or in her gear, should warn other ships in the vicinity giving her position.
Note: The accompanying plates showing ordnance used currently and in the past by DND ships and aircraft, will assist in identifying explosive ordnance that may be recovered from the sea.
NAVAL Underwater charges
Signal Underwater Sound MK411 (Reduced Charge) (SUS)
Signal Underwater Sound MK 410 (High Explosive)
Depth Charge High Explosive DM211
Signal Sound Marine MK NC 1 Mod 1
82 mm Rocket Practice MASS Decoy
MK 234 Electronic Decoy Cartridge (Nulka)
Cartridge 5.125 Inch Chaff
Rocket 100mm Radar Echo Practice C20
Signal Smoke Aircraft Orange Drift Indicator C8
Marker Location marine C2A1
Marker Man Over Board (MMOB)
38mm Hand Held Illuminating Signal Flare (Radaflare)
Signal Smoke and Illumination Marine
Mk 66 Mod 2
Signal Smoke Marine MK3 Orange
Mk 66 Mod 2
Marker Man Overboard
Smoke and Light
Length 500 mm
Diameter 190 mm
(including the float)
Marine Red Pinpoint Mk7
Length 247 mm
Diameter 35 mm
Rocket 100 mm Radar echo P8
Length 1700 mm
Diameter 102 mm
100 mm Infra red Decoy P6
Length 1600 mm
Diameter 103.2 mm
Flare Aircraft Parachute LUU 2AB/2BB
Length 91.4 cm
Diameter 12.4 cm
Signal Underwater Sound Mk411
Signal sound Marine
Height 8.89 cm
Diameter 7.62 cm
Signal Illum A-C
Single star 1.5 inch
Length 82.6 mm
Diameter 38 mm
Marker Location Marine C1A1 or C1A2
Length 47 cm
5.125 inch chaff Mk 182
Length 1206.5 mm
Diameter 130 mm
Marker Location Marine Mk 58
Length 21.5 inches
Diameter 4.9 inches
Signal Distress Day and Night
Length 135 mm
Diameter 42 mm
Marker Man Overboard, Light And Smoke, Series III
Cart 57mm Pre-Fragmented High Explosive
High Explosive-tracer (HE-T)
Cartridge 57mm Non-Frag Brown Band
Both are inert Dummy 40mm Drill 40mm
Cartridges 40mm Practice (BL/P)
Projectile inert but could have live primer and propellant in cartridge case
Other Possible Ordonance
Depth Charge HE DM211 Anti-Frogman
2.75 inch rocket motor
2.75 inch warhead
Authority: Department of National Defence (NDHQ)