DCHP-2

flat boom Lumbering DCHP-1 (pre-1967)

• a simple boom (def. 3b) or raft in which one layer of floating logs is held by chained boomsticks (def. 2) and spaced cross-logs.

  See also: boom ((1)) ((n.)) (def. 3b)  boomstick (def. 2)  flat raft