Pneumatic coaxial piston air cannon teaser

Made out of a bicicle pump! The idea is to use the one way valve that every bicicle pump has on its piston, to improve the performance of the gun, instead of using loose pistons as usually. I know the difference may not be crucial but it's for the sake of well-design. The piston is too heavy but seems to prove the theory. At only 75psi it shoots a 0,2g 6mm plastic bb through a steel (yes, steel. This is Europe) coke can. Filled with water it pierces the can and leaves a mark on the other wall. Air leak detected, soon to be fixed. UPDATE 20150719 Air leak was fixed with teflon tape. Cannon was intended to be tested to 10bar / 145psi. At 8bar / 116psi the back bursted off the main body, propelling it against a wall, with the cannon hitting at a great speed. Result is a bent cannon. Speed doesn't seem to have decreased but precision has been seriously affected. Plans for now are to test the energy at 75psi (like this teaser shows), then cut the cannon to the unbent part (which is about half the lenght), glue the back permanently and test energy again at 75psi to see the relationship between cannon lenglt and muzzle energy. Afterwards, with the back end fully glued, repeat tests at 116psi / 8bar and hopefully get the same energy as full-lenght-cannon @ 75psi. If not, test pressure until total burst, or the desired energy achieved. Advise is greatly appreciated. Thanks for watching! A FewFriendsFace production Likeyright FFF2015 All likes reserved

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Welcome aboard the 'Olivia Charles' - a pinnacle of luxury catamaran craftsmanship. Glide through azure waters and experience the epitome of sophistication and style on this unparalleled seafaring journey. 🌊🥂 In this video, we take you on an exclusive tour of this magnificent vessel, showcasing its lavish amenities, exquisite design, and the sheer elegance it brings to every voyage. From its spacious decks to its opulent suites, 'Olivia Charles' is truly a floating paradise. 🔔 Make sure to SUBSCRIBE and turn on notifications so you never miss our next adventure! 👍 If you enjoyed this experience, please give us a thumbs up and leave your thoughts in the comments below. Have you ever sailed on a luxury catamaran before? We'd love to hear your stories! 🔗 Connect with us: Instagram: www.instagram.com/odyssea_yachting/ Facebook: www.facebook.com/odysseayachting Website: www.instagram.com/odyssea_yachting/ #LuxuryCatamaran #OliviaCharles #SailingInStyle #LuxuryTravel #YachtingExperience

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► A not-to-be-missed event for boating enthusiasts on the U.S. East Coast, the Annapolis Boat Shows attract some 100,000 visitors every year. The event is in fact two separate boat shows held in the same spot, but a week apart. The Powerboat Show, dedicated just to powerboats (417 units on display), was held from October 3 to 6, followed by the Sailboat Show from October 10 to 14. It’s the latter of the two that we’ve selected for you. The event provided an opportunity to take stock of how the multihull sector is taking hold in the United States: we counted 56 two- or three-hull units compared with 96 monohulls, totaling nearly 30% of the offer. Although some exhibitors’ delivery trips to the show were hampered by the hurricanes further south, the Current 46, the Leopard 46 and the Xquisite Sixty Solar Sail all made their world premiere. ► 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 multi news on X https://twitter.com/multihullsworld?lang=fr ► Let’s talk about business https://www.linkedin.com/company/multicoques-mag-multihulls-world/ ► Like us on TikTok! https://www.tiktok.com/@multihullsworldmag #multihullsworld #yachting #multihull #cruising #bluewater #sailing #sailcruising #seatrial #boatreview #bluewatersailing #powercat #boat #boatlife #boating #sailingday #magazine #youtube #tiktok #catamaran #trimaran #dominicsalander @annapolisboatshows3288 #annapolisboatshows #annapolis