Quick test of a tiny QEV cannon firing air at 12atm, viewed through a Schlieren setup (no razor blade). 1/8th speed (15fps) and improved video performance because somehow Youtube cropped the last frames of the other videos (?) 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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Join us for a ride and experience the incredible EJET tender! From its exciting features to the sheer joy of cruising, EJET brings the perfect experience and style on the water.🌊💨 Ready for some fun? Let’s go!🎉 #EJET #EjetTender #Tender #ElectricTender #Boat #ElectricBoat #Boat #Yachting #Yacht #YachtLife #Sustainability #Ecofriendly #Excitement #Joy #Experience #Trust

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► Full test in Multihulls World N°192: https://www.multihulls-world.com/review/motor/valder-20-a-powercat-for-james-bond ► When New Zealand offshore powerboat racer Wayne Valder decided to take an interest in building a cruising powercat, the result was always going to be a (very) fast machine! “I’m used to racing my MTI catamaran at over 120 knots on the US offshore circuit, so even though I hadn’t planned anything that fast in recreational boat form, I still wanted something with reasonable performance,” Wayne tells us. His quest led him to one of the big names in high-performance leisure catamarans, Roger Hill, who designed a large 67-foot (20 m) catamaran equipped with a self-stabilizing foil system. This powercat was then built in a foam/carbon/epoxy sandwich and fitted with a powerful drivetrain (2 x 1,300 HP) to reach 45 knots. Cruising speed is between 18 knots - the speed at which the foils start to work - and 30 knots, where range is still 1,143 miles (with a 10% reserve). Particular attention has been paid to soundproofing and vibration suppression. The layout can be customized according to the Owner's wishes, as can the deck layout: the flybridge version can even accommodate a (small) helicopter, though a Sedan version also features in the catalog. ► TECHNICAL SPECIFICATIONS Builder: Valder Yachts Length overall: 67’7” (20.6 m) Waterline length: 56’1” (17.1 m) Beam: 22’ (6.7 m) Draft: 33” (0.83 m) Light displacement: 66,000 lbs (30 t) Max laden displacement: 88,625 lbs (40.2 t) Max. speed: 45 knots Cruising speed: 18 to 30 knots Range at 9 knots: approx. 4,000 miles Drivetrain: 2 x MAN V8 1,300 HP Fuel: 2,500 US gal (9,460 l) Water: 440 US gal (1,675 l) ► Become a FREE SUBSCRIBER to Multihulls World's YouTube page now - https://www.youtube.com/c/MultihullsWorld ► Log on to our website to discover over 500 multihulls tests! Subscribe to our newsletter to take advantage of our promotions and boat show invitations! https://www.multihulls-world.com/ ► Follow us on Facebook! https://m.facebook.com/MultihullsWorldMag/?locale2=fr_FR ► Discover us on Instagram! https://www.instagram.com/multihulls_world/ ► Follow our multihulls news on Twitter - https://twitter.com/multihullsworld?lang=fr ► Let’s talk about business on Linkedin https://www.linkedin.com/company/multicoques-mag-multihulls-world/ ► Like us on TikTok! https://www.tiktok.com/@multihullsworldmag #multihull #multihullsworld #catamaran #multicoquesmag #powercat #newzealand #pacificpowerboat #barrythompson #valderyachts

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🔗 Acesse: hubly.work/mineiros-do-veleiro 🔗 Loja Mineiros do veleiro https://hubly.work/loja-mineiros-do-veleiro ⛵ Mineiros do Veleiro – Explorando o Brasil a Bordo do Aires ⛵ Golfinhos dando um show e a incrível Fast Festa

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