https://www.instagram.com/pie_marine/ https://www.piemarine.com After two years of design and production planning, the NAOS 800 series, which started to sail in blue waters, has the distinction of being the lightest boat in its class. In this way, it provides very high performance and fuel efficiency even at low engine power.

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Quick test of a tiny QEV cannon firing air at 12atm, viewed through a Schlieren setup (no razor blade). Edited from to 1/4th normal speed. I didn't quite understood the need for a razor blade but without one I still see the flow of air. For me, the razor blade just makes the dot of light smaller(?) If anyone can clarify me what the razor blade really does and where it should be placed (in the source of light or in the camera) I'd really appreciate. Also important to note that this is AWESOME to look with the naked eye but almost the dimmest light can blind you. I covered a tiny LED torch with aluminum foil and punctured a hole with a sewing needle, on the side! so that the LED doesn't bright directly through the hole. Take care with the eyes!!

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America's Cup winner Thierry Fouchier reports their day on board Erik Maris' Zoulou at the day 3 of the GC32 Racing Tour @ Copa del Rey MAPFRE.

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