https://www.militarynewbie.com/wp-content/uploads/2013/11/TC-21-24-Rappelling.pdf
FRIES
FAST-ROPE INSERTION AND EXTRACTION SYSTEM
SPIES
SPECIAL PATROL INFILTRATION/EXFILTRATION SYSTEM
https://home.army.mil/campbell/index.php/tsaas/fries-spies-master
https://home.army.mil/campbell/application/files/2615/4473/9608/Map_to_TSAAS.pdf
https://home.army.mil/campbell/application/files/3116/0288/1014/201_Enclosure_201_TSAAS_ROM__Memo.pdf
https://home.army.mil/campbell/application/files/6115/5368/4963/SPIESFRIES_Packing_List.pdf
https://lifesupportintl.com/products/res-1496-00
https://home.army.mil/campbell/index.php/download_file/view/3060/782
https://home.army.mil/campbell/index.php/download_file/view/3007/782