Navigation as instrumental negotiation Report and observations on a transatlantic field trip and training on sailboat "Albatros" (2016-2017)

We describe some instrument-based practices of navigation on the high seas, and we introducethe notion of instrumental negotiation and navigational shortcut. We assess the role of astronomicnavigation in second-to-second steering and in wayfinding. We detail a number of observations concerningtime, space representation, redundancy as a facilitator, and the modulation of social interactions