However , in moderate winds , both the larger inefficient junk sails and the small efficient modern sails will generate sufficient power to drive the hull near its hull speed .
This can be overcome with cruising spinnaker and gennaker on the junk rig .
In moderate winds , both the larger inefficient junk sails and the small efficient modern sails will generate sufficient power to drive the hull near its hull speed .
This can be overcome with cruising spinnaker and gennaker on the junk rig .