ARMY TM 5-5420-212-10-1
MARINE CORPS TM 08676A-10/1-1
b.
Single Story 8 thru 12 Bay- Double Story 2E + 1 thru 2E + 18
Single story bridges over 8 bays long, and double story bridges up to 18 bays without link reinforcement use a
combination of light launching nose and launching nose heavy, supported on the launching nose roller (para. 4-10) and
launching nose cross girder (para. 4-11).
NOTE
The drill for a 12 bay double story bridge Is shown below as an example for assembling launching
noses. When building other lengths and types of bridge, booming or building may occur during the
construction of the nose. ALWAYS follow the build and boom table or build procedure for the bridge
being built.
(1)
Set nose cross girder in middle position (para. 4-11c.).
(2)
Using a nose pin, pin front and rear sections of light nose together.
(3)
Put retainer clip through end of nose pin.
(4)
Place front end of light nose section on nose roller and rear end on nose cross girder. Rear of nose section
should extend about 2 ft (0.61 m) behind cross girder.
(5)
Pin first heavy nose section to end of light nose section. This must remain supported until step (8) is complete.
(a)
Fit sockets of heavy nose onto dowels of rear light nose resting on nose cross girder.
(b)
Lift and push shoot bolts through dowels and turn handles to locked position.
(c)
Push nose pin through jaws of nose sections.
(d)
Put retainer clip through the end of nose pin.
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