Pneumatic coaxial piston air cannon teaser

Welcome aboard to the our video site for sailors. We are being constantly blasted by scammers and pirates, so registration is invite only

contact@sailorsahoy.com with "Invite". No spam, no newsletters. Just a free account

السراويل القصيرة خلق

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

247

We arrived at the island of Chios and, as is typical during this time of year, we were the only boat at the quay. We did notice some kind of rack sticking out over the water when we tied our put up at the quay. It turned out that we had docked right in front of the only restaurant that was open, and their specialty was “sun-dried octopus,” which was lying there drying in the sun. Even though the weather was sunny, we still needed some extra electricity—for example, to run a load of laundry. During the low season, electricity is often turned off for sailors, and that was the case here as well. We asked the restaurant owner if we could roll out our 50-meter power cable to the restaurant to get electricity for two days. Of course, we were willing to pay for it. But Greeks are often so hospitable and friendly—it wasn’t necessary. It was around lunchtime, so we showed our gratitude by having lunch and drinks there. A win-win situation! I filmed the restaurant and how our electricity cable was set up—funny to see, also the octopus and the tree in the restaurant!

Stunning patch reef with a spectacular array of corals, huge plates providing perfect ambush grounds for a variety of Groper. A patch reef behind Agincourt No 3 with a spectacular array of corals, large plate coral and boulder coral formations ideal hunting grounds for Coral Trout and home for large numbers of Damselfish. More Info: http://www.silverseries.com.au/sonic_sites10.htm http://www.silverseries.com.au/