TM 5-5420-278-24&P
0080 00
0080 00-1
SHIPMENT AND LIMITED STORAGE
IMPROVED RIBBON BRIDGE (IRB)
RAMP BAY M16
NSN 5420-01-470-5825 P/N 12478918;
INTERIOR BAY M17
NSN 5420-01-470-5824 P/N 12478919.
LOADING AND MOVEMENT OF EQUIPMENT
SHIPPING DATA PLATE
A shipping data plate showing a silhouette of the side and end views of the bay is provided on each IRB-
R and IRB-I. Overall dimensions, lifting and tiedown provisions, and center of gravity locations are
depicted.
LOADING AND MOVEMENT
For transportability guidance in handling and movement of IRB bays, refer to TM 743-200-1, Storage
and Materials Handling and TM 55-2200-001-12, Transportability Guidance for Application of Blocking,
Bracing, and Tiedown Materials. Refer to TM 5-5420-278-10 or TM 5-5420-234-14&P for information on
the Common Bridge Transporter (CBT) and the Bridge Adapter Pallet (BAP).
SLINGING PROVISIONS
IRB slinging provisions enable lifting of either the ramp or interior bay for both normal lift and external
lift by helicopter. When lifting the bay, connect lifting sling to the quick-release pins marked
LIFT/TIEDOWN, located on top of the bay’s outer pontons when in the folded position. When the BAP is
used, lift the bay and the BAP by connecting the sling to the lifting eyes on the BAP. When the bay is tied
down with the BAP, the tiedowns are to be attached to the bay and not the BAP. The quick-release pins
are located in relationship to the bay’s center of gravity. Refer to Center of Gravity (WP 0082 00) for
measurements.
