Floating Arm trebuchet-with plans in description – YouTube. Floating Arm Trebuchet Plans Download – Page 2 Views of the Trebuchet. Click to Download Trebuchet Plans Floating Arm Trebuchet, Weekend Projects, Floating Arm Trebuchet Plans Download – Page 2 Views of the Trebuchet.

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A regular trebuchet is a better realistic war machine.

While this is happening, the wheel is moved backwards by the torque acting on the arm from the counterweight. Perdue 15 November This page was last edited on 5 Aprilat Reducing the drop distance of the wheel axle to the glide track would reduce damage, but also reduce the range of the trebuchet.

In contrast, a floating arm trebuchet features an axle on the arm freely moving along a horizontal glide track. From Wikipedia, the free encyclopedia.

Floating arm trebuchet

A floating arm trebuchet has three points of contact where friction can interfere with efficiency. While the floating arm design can have a lighter frame than a traditional trebuchet because the overall forces produces are less, [5] the impact of the arm on the glide track will cause eventual damage and may need maintenance. Large scale designs require special trigger mechanisms that can hold the weight of the throwing arm. Technology on Your Time. By using this site, you agree to the Terms of Use and Privacy Policy.


The Floating Arm Trebuchet is a counterweight siege weapon which is a modern variation [1] of the medieval trebuchet. Kids Learn by Making Stuff.

The floating arm trebuchet uses a counterweight held on top of a tall drop channel to transfer potential energy into kinetic energy. The release mechanism is a hook with a specific bend in its tip to determine when centripetal force will release one end of the sling, freeing the projectile to p,ans on its path.

The sling or pouch, which contributes to acceleration of the projectile and then releases it at the desired launch angle, is often made using polyester rope or other durable thin material. Retrieved November 13, Retrieved November 15, Upon releasing the trigger, the counterweight is allowed to drop through trebucheg channel.

Retrieved from ” https: This linear drop of the counterweight is more efficient in transferring potential energy to kinetic energy than the pendulum plabs motion of a traditional trebuchet.

To reset the device, the counterweight must be raised back to the original height and locked in with the trigger mechanism.

The dropping of the counterweight forces the arm to swing to one side of the glide track and quickly jerk in the opposite direction to launch a projectile. The arm is on a moving axle and the torque acts on the entire structure, preventing stalling. The most common of several trigger mechanisms is two eye flkating and a peg through both bolts.

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The floating arm trebuchet loses the range advantage over regular trebuchet at very large scales, because the difficulty in construction of the drop channel and axle increases with treuchet. Their defining feature is free movement of an axle on the throwing arm, [2] and a linear drop channel for the counterweight. Views Read Edit View history. The design and construction of such machines is a popular project assignment in post-secondary engineering classes.

In larger designs, the trigger system is applied at the top of the drop channel. Friction when the counterweight is dropping down to the glide strike can be reduced by using silicone grease or a floatlng film of plastic on the drop channel.

Floating arm trebuchet by Freddy Moreno on Prezi

Five Machines That Changed the World. A traditional trebuchet, which is simple to engineer, consists of an arm resting off-centre on an axle with a hinged counterweight at the short end of the arm. However, a floating arm trebuchet is more efficient when built to a size of between one am and five meters, [6] making it suitable for hobbyists and model builders.

To reduce friction of the sling on the launch track, the track should have a smooth surface.