6.1.1 Mark P-1. Intermediate pontoons are intended for use in the central
part of the floating structure.
6.1.2 Mark P-2.
Sloped bilge end pontoons are intended to form the bow
6.1.3 Mark P-3. Sloped top intermediate ramp pontoons are intended for
use on the barge end of landing ramps.
6.1.4 Mark P-4. Sloped top and bottom end ramp pontoons are intended for
` h e landing ramp. Pontoon Mark P-4 is connected to pontoon
Mark P-3 to form the ramp from barge to shore.
6.1.5 Mark P-6. Sloped top sea end for 1179 LST vessel is intended to be
d - h e bow of 1179 class LSTs to the end of 1the pontoon
6.1.6 Mark P-8. Sloped bilge end (receiver) is based on the Mark P-1 con-
figuration and intended to be used to couple causeway sections when
incorporating the flexor end connectors.
6.2 Ordering data.
Acquisition documents should specify the following:
(a) Title, number, and date of detail specification and associated
(b) Mark number(s) and item(s) required (see 1.2).
(c) When a first article is required for inspection and approval
(see 3.2, 4.2.1, and 6.4 of MIL-P-19380J).
(d) When hatch cover assembly shall be welded in place in the pontoon
by the contractor (see 3.5).
(e) When knocked-down pontoons are required (see 3.5 and 3.8).
(f) Identification marking required (see 3.9).
(g) Level of preservation and packing required (see 5.1).
6.3 Contract data requirements.
(See 6.3 of MIL-P-19380J.)
6.4 First article.
(See 6.4 of MIL-P-19380J.)
Army - ME
Navy - YD
Navy - YD
Project No. 1945-0018-01