![](https://signal439.tripod.com/webonmediacontents/Snoopy.jpg?1404563418722)
![](https://signal439.tripod.com/webonmediacontents/Snoopy.jpg?1404563418722)
503rd Chemical Detachment distinctive unit insignia.
The primary mission of the unit was "People Sniffer" missions. The unit used it on the LOH as well as the UH-1 helicopters. They also conducted defoliation missions as CS drops. The CS bombs were E-158 and E159 CS Bombs.
![](https://signal439.tripod.com/webonmediacontents/CCF02122012_00000-1_edited-1.jpg?1404563419012)
![](https://signal439.tripod.com/webonmediacontents/b_edited-1.jpg?1404563419189)
![](https://signal439.tripod.com/webonmediacontents/c_edited-1.jpg?1404563419176)
![](https://signal439.tripod.com/webonmediacontents/CCF02122012_00001-1_edited-1.jpg?1404563418662)
![](https://signal439.tripod.com/webonmediacontents/CCF02122012_00002_edited-1.jpg?1404563421310)
![](https://signal439.tripod.com/webonmediacontents/d_edited-1.jpg?1404563421394)
![](https://signal439.tripod.com/webonmediacontents/h_edited-1.jpg?1404563421803)
![](https://signal439.tripod.com/webonmediacontents/k_edited-1.jpg?1404563423538)
![](https://signal439.tripod.com/webonmediacontents/l_edited-1.jpg?1404563423355)
![](https://signal439.tripod.com/webonmediacontents/j_edited-1.jpg?1404563425850)
The primary mission of the unit was "People Sniffer" missions. The unit used it on the LOH as well as the UH-1 helicopters. They also conducted defoliation missions as CS drops. The CS bombs were E-158 and E159 CS Bombs.
![](https://signal439.tripod.com/webonmediacontents/CCF02122012_00000-1_edited-1.jpg?1404563419012)
![](https://signal439.tripod.com/webonmediacontents/b_edited-1.jpg?1404563419189)
![](https://signal439.tripod.com/webonmediacontents/c_edited-1.jpg?1404563419176)
![](https://signal439.tripod.com/webonmediacontents/CCF02122012_00001-1_edited-1.jpg?1404563418662)
![](https://signal439.tripod.com/webonmediacontents/CCF02122012_00002_edited-1.jpg?1404563421310)
![](https://signal439.tripod.com/webonmediacontents/d_edited-1.jpg?1404563421394)
![](https://signal439.tripod.com/webonmediacontents/h_edited-1.jpg?1404563421803)
![](https://signal439.tripod.com/webonmediacontents/k_edited-1.jpg?1404563423538)
![](https://signal439.tripod.com/webonmediacontents/l_edited-1.jpg?1404563423355)
![](https://signal439.tripod.com/webonmediacontents/j_edited-1.jpg?1404563425850)