Site Requirements - TM-5-5420-278-10

SITE REQUIREMENTS AND LAYOUTS - TM-5-5420-278-10_182

Site Requirements (cont) - TM-5-5420-278-10_184

TM-5-5420-278-10 M85 Tank Chassis Transporting: for Bridge Armored-Vehicle-Launched Scissoring Type Class 80 Manual
Page Navigation
146

TM 5-5420-278-10 0019 00 0019 00-3 retreating army forces by crossing a river, thereby delaying the enemy's advance. A line of defense is then established along the exit bank of the river, which effectively forces the enemy to conduct a deliberate river crossing to continue its assault. IRB equipment is used extensively in this role. 2. Site Requirements. Site selection is a critical step in performing a river crossing, and the requirements are generally based on strategic planning and equipment limitations. Crossing sites are generally characterized as assault, rafting, or bridging, with each having its own set of requirements. a. An assault site is selected for the following characteristics: (1) Enemy forces are weak, the terrain on the friendly shore provides concealment from enemy observation, and there is room for the assault to be supported by overmatching fire. (2) Adequate crossing routes exist to and from the river at its narrowest point, and current velocity is 0–5 ft (0–1.5 m) per second. (3) There are gently sloping, firm banks which permit rapid entry and exit at multiple points along the river. (4) Riverbank slopes and water depth do not exceed the specified limits for the equipment entering the river. b. All raft sites require the following characteristics: CAUTION Gravel and small rocks on roadway surface leading to raft can cause dents and punctures in raft roadway deck and can also become lodged in ramp and interior bay unfolding mechanisms, causing jamming during bay retrieval. If gravel or small rocks are present at raft site, either remove them or cover them with topsoil or sand. (1) The site should be positioned downstream from a bridge site. (2) The site should provide the fastest access to the far shore with established road networks on both sides of the river. (3) The site should be located at a narrow point along the river that is free of sandbars or obstacles that would impede operations. (4) The site should have firm banks on both sides with slopes, water depth, and current velocity within the specified limits for the IRB launch method used. (Refer to WP 0019, table 1, Launch Restrictions.) SITE REQUIREMENTS AND LAYOUTS (Contd)

Privacy Statement
Press Release
Contact