This shallow draft allowed navigation in waters only one metre deep and permitted beach landings, while its light weight enabled it to be carried over portages.

So much so that they've refused to allow even American nuclear-powered armaments in Japanese waters.

Keels may be fixed, or non-movable, or they may retract to allow sailing in shallower waters.

Moreover, they said nuclear-armed submarines would be allowed in Korean waters.

No foreigners allowed in Russian-American waters, except at regular ports of call.

There would have been two small anchors, and one main anchor to allow for extended periods fishing in the same spot, in waters up to 18 metres deep.

Deltoptychius's large eyes allowed it to hunt in deep waters, crushing shellfish between solid tooth plates in its mouth.

An anchor would have allowed extended periods fishing in the same spot, in waters up to 18 m deep.

All had a form of fore/aft gaff rig with a flat bottom and lee boards to allow operations in shallow waters.

One we should insist on is that only double-hull ships be allowed in and around European waters.