TM 5-5420-278-10
0042 00
0042 00-6
LONGITUDINAL RAFTING PROCEDURE (Contd)
Notes:
1. The following conditions will reduce the ratings from those given above. The
raft commander must monitor bow freeboard as well as trim to ensure that safe
crossing conditions are maintained in the following conditions:
a. Rough, choppy, or turbulent water in current speeds above 4 feet/sec
(1.2 meters/sec) will reduce the ratings from those given in the preceding
table.
b. Shallow fast water of less than 6 ft 7 in. (2 m) water depth combined with
current speeds above 4 feet/sec (1.2 meters/sec) will reduce the ratings from
those given in the preceding table.
Table 1. Longitudinal Rafting Ratings Table.
Raft Size and
1–2
3–4
5–6
7–8
9–10
Number of Vehicles
(0.0)
(0.3–0.6)
(0.9–1.2) (1.5–1.8)
(2.1–2.4) (2.7–3.0)
4-Bay
Tracked
70
70
70
70
65
60
Wheeled
70
70
70
70
65
60
5-Bay
Tracked
90
90
90
90
85
80
Wheeled
90
90
90
90
85
80
6-Bay
Tracked
105
105
105
105
100
95
Wheeled
105
105
105
105
100
95
7-Bay Single
Tracked
115
115
115
115
110
105
Wheeled
115
115
115
115
110
105
7-Bay Multiple
Tracked
140
140
140
140
135
130
Wheeled
140
140
140
140
135
130
LONGITUDINAL
RAFT MLC RATINGS
WATER CURRENT VELOCITY FEET/SEC (METERS/SEC)
CAUTION
Raft commander must observe leading edge of raft and
decrease speeds or halt operations, as necessary, if
continuous water is coming over bow dam.
NOTE
BEB operators will propel raft assembly only when
signaled by the raft commander.
u. Cast off taglines and maneuver raft assembly to far shore in accordance with
WP 0042 00, figure 3, Longitudinal Rafting Procedures.
v. Secure raft assembly to shore with taglines.
