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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#beneteau #sailing #boating _______________________________________________________________ BENETEAU est concepteur et constructeur de bateaux depuis 1884. BENETEAU propose un grand nombre de gammes et modèles de bateaux pour répondre à tous les rêves de navigation, que ce soit en voile ou en motonautisme. Beneteau est leader mondial de la construction de voiliers de croisière. Abonnez-vous à la chaîne Beneteau: http://bit.ly/25FTf8h Site officiel : goo.gl/6TvuU4 Facebook : http://bit.ly/1UCGE2c Twitter : http://bit.ly/1UCGGXU BENETEAU has been designing and building boats since 1884. Today, BENETEAU offers many different ranges and models for everyone who dreams of life afloat, whether under sail or power. Beneteau is the world leader in the construction of cruising sailing yachts. Suscribe to Beneteau Youtube Channel : http://bit.ly/25FTf8h Website : goo.gl/6TvuU4 Facebook: http://goo.gl/tT8TXl Twitter : http://goo.gl/vPE04F

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O canal oficial da Semana Internacional de Vela de Ilhabela apresenta vídeos promocionais, entrevistas e VTs sobre o principal evento da modalidade na América do Sul. O campeonato chega à sua 46ª edição e será disputado de 13 a 20 de julho, em Ilhabela (SP). São 120 barcos confirmados Não deixe de usar a #SIVILHABELA em seus posts...Curta e compartilhe! Mais informações em https://www.facebook.com/sivilhabela https://www.instagram.com/sivilhabela https://www.twitter.com/sivilhabela Contatos de imprensa: Flávio Perez | Juliana Leite | Katarine Monteiro +55 11 992176474 katarine@onboardsports.net contato@onboardsports.net Vídeos produzidos pela agência On Board Sports em parceria com a Duna Filmes

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#valhalla #boats #explore #boating #boatlife #mercurymarine

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