Shell 155 mm smoke FFV 007 ER

The 155 mm smoke shell FFV 007 Er(24 km) is a modern Smoke Shell designed for firing at long ranges, up to 24km. It is fully compatible with all 155 mm guns. The smoke shell FFV 007 ER is machined in two parts from forged blanks that are screwed together. There are two smoke canisters inside each shell. The shell must be used together with a time fuze, for example DM 153 fitted with a T-handle, that also protects the fuze threads.

When the gun is fired, the charge drives the shell through the barrel. The velocity varies depending upon the charge used. The driving band at the rear of the shell is engaging the rifling of the barrel and makes the shells rotate for stability in flight. The shell must be used together with a mechanical time fuze DM 153 which has two setting modes, impact mode and time setting mode. When the set time of the fuze has elapsed, the expelling charge is initiated and the smoke canisters are ignited. The first expelling charge creates a pressure inside the shell and ignites the second expelling charge. This charge pushed the rear smoke canister out of the shell toghether with the base plug. The pressure created by the first expelling charge pushes the first canister out of the shell. The brake flaps then folds out, reducing the rotation of the canisters. The speed of the smoke canisters if slowed down and the rotation further reduced. The canisters then turned 180 Deg and are stabilized by the brake flaps. The brake flaps are reducing the decent rate to about 50 m/s. The flaps guarantees that the canisters reach the ground with the smoke outlets pointing upwards. The low decent rate eliminates the risk of rebound and shattering against hard ground as well as the risk of sinking into soft ground. The Smoke generation process is fully effective at the moment the canisters reach the ground.

SPECIFICATIONS

QUALITY

Quality is ensured at every stage of manufacture. Shells are filled and a carrying handle of 'T' shape is fitted under strict Quality Control & Proof carried out for their performance requirements.

RELIABILITY

Reliability of shells and cartridge is ensured by independent testing of each sub system/sub assemblies and also further as a complete store for its functioning requirements.

STOWAGE DIMENSION OF UNIT LOAD

PACKING

The shells are packed in unit loads in wooden pallets containing 12 shells in each unit.

CHARACTERISTICS/TECHNICAL DATA

Mass of the shell with fuze        : 43.3 kg

Length of shell with fuze          : 880 mm

Smoke emission duration            : 6 min.

Max.rotation on expelling          : 12,000 rpm

Min.rotation on explelling         : 5,000 rpm

Velocity at separation             : < 345 m/s

Descent rate of canister           : 300 m

Optimum height of burst            : Green bag(3 to 5)
                                   : White bag(4 to 7)
                                   : Charge 8, Charge 9

Compatible fuze                    : DM 153

Maximum range                      : 24 km

Shelf life                         : 10 years

Max. chamber pressure              : 440 mpa

Temperature operating              : -20 to 60 deg C.

Temperature storage                : Mean value during the year < 35 
                                     Deg d Minimum -40 Deg C Max + 55
                                     Deg C + 1140 W/Ms Solar radiation,
                                     equivalent to  Approx. 70 o c

STOWAGE DIMENSION OF UNIT LOAD

915 x 1060 & 570 mm
Mass of unit weight - 556 kg
UN CLASSIFICATION

Compaitbility                      : G

Hazard division                    : 1.2

Fire fighting classification       : 2