Microtonner 19

The Microtonner 19 is a 5.5-meter fractional sloop designed by Nestor Volker and built by Mariner Construcoes Nauticas Ltd. since 1985, adhering to the International Micro Class Rule. It features a lifting keel, a 2.4-meter beam, a 1.1-meter draft, and displaces 550 kg. Aboard *Hashtag Sal*, the crew navigated the mouth of the São Francisco River in Brazil, a challenging area due to shifting sandbars and heavy wave action, particularly with southeast winds.18:06 The river offers extensive freshwater anchorages and a deep-water route to Penedo, though navigation beyond Penedo is restricted by the Propiá bridge's vertical clearance of 12 to 22 meters.25:33 Continuous depth soundings are necessary due to sediment buildup.23:49 The crew also noted Cabo Frio, Brazil, as a strategic stop, despite shallow depths limiting access for vessels with drafts over 1.70 meters.9:16