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The Sunreef Ultima 55 is the first model launched from Sunreef's new generation of hybrid high performance power catamarans 'ecospeeders'. It's an impressive power cat with sleek design and understated luxury, plus a max speed of approx 35 knots. Future models in the range include 44, 66, 77, 88 and the flagship 111. Launched at the Dubai International Boat Show in February, the Ultima 55 was one of the stars of the show at Salon Náutico in Barcelona last week. Big thanks to @medcatyachts for the tour of the boat. #sunreef #powercatamaran #catamarans #powerboat @SUNREEFYACHTSOFFICIAL
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!!