Explosive Hazard / IED Found/Cleared - Afghan War Diary, 2005 February (sitios de interés)
Descripción del sitio
Event classification
SECRETEvent summary
"ON 28 FEB 05, AT APPROXIMATELY 0801Z, LOCAL AMF FORCES TURNED AN IED OVER TO TF 2-5 AT FOB RIPLEY. IT WAS REPORTED THAT THE DEVICE WAS FOUND IN THE ROAD IVO SALIH ZAI, ORUZGAN PROVINCE, ABOUT 10 KM NE OF FOB RIPLEY. THE IED CONSISTED OF A 107MM ROCKET, BLASTING CAP, DTMF RECEIVER MOD 1, SPIDER DEVICE, POWER SOURCE, AND PRESSURE PLATE. THERE WERE NO REPORTED INJURIES OR DAMAGE. SINCE THE IED COMPONENTS WERE PROVIDED BY AMF FORCES TO TF-25, NO SENSITIVE SITE EXPLOITATION WAS CONDUCTED; THEREFORE, THE EXACT CIRCUIT CONFIGURATION COULD NOT BE VERIFIED FOR THIS DEVICE. BASED ON AVAILABLE INFORMATION AND LIKELY OBJECTIVE OF THE TERRORIST, PERHAPS TO COUNTER OUR TTPS, THE MOST LOGICAL CIRCUIT CONFIGURATION IS AS DESCRIBED ABOVE. BY EMPLACING THE PRESSURE PLATE IN SERIES WITH THE OUTPUT OF THE MOD 1 SPIDER DEVICE, THE TERRORIST WOULD NEED TO CONTINUOUSLY HOLD DOWN THE THIRD DTMF CODE IN ORDER FOR VOLTAGE TO BE APPLIED TO THE GATE OF THE OUTPUT SCR. AS VOLTAGE IS APPLIED TO THE GATE OF THE SCR, THE CIRCUIT IS JUST WAITING FOR THE PRESSURE PLATE TO CLOSE AND DELIVER POWER TO THE DETONATOR. A SMALL PERCENTAGE OF SPIDER DEVICES HAVE THE ABILITY TO LATCH THE LAST SCR, THUS FREEING THE TERRORIST FROM CONTINUOUSLY HOLDING DOWN THE LAST DIGIT OF THE DTMF CODE. MAJORITY OF REPORTED SPIDER DEVICE AND PRESSURE PLATE COMBINATIONS HAVE BEEN OF THE VARIETIES THAT REQUIRE THE TERRORIST TO CONTINUOUSLY HOLD DOWN THE THIRD DTMF CODE."
Event identifier
2549B77D-BB64-42F3-80C0-9003C5CF10F1
Event category and type
- Category: IED Found/Cleared
- Type: Explosive Hazard
Statistics
Wounded in Action
- Civilian: 0
- Enemy: 0
- Friendly: 0
- Host nation: 0
- Enemy Detained: 0
Killed in Action
- Civilian: 0
- Enemy: 0
- Friendly: 0
- Host nation: 0
Detained in Action
- Enemy: 0
Help us extend and defend this work