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What is the best ratio for a trebuchet?
General wisdom has a 5:1 ratio being the norm for a standard trebuchet, although 4:1 is sometimes used. The longer the ratio, the greater the speed that tip of the throwing arm will reach – but also increasing the force required to move it quickly.
How do the trebuchets differ?
The trebuchet is the heaviest of the early-medieval siege engines. Technically a class of catapult, trebuchet differs from most other catapults, which use torsion (i.e. a wound rope, much like an oversized crossbow), in that it uses the leverage principle to launch the projectile.
How does a trebuchet catapult work?
To launch a projectile, a trebuchet utilizes the transfer of gravitational potential energy into kinetic energy. A massive counterweight at one end of a lever falls because of gravity, causing the other end of the lever to rise and release a projectile from a sling.
How big can trebuchets get?
The trebuchet is a compound machine that makes use of the mechanical advantage of a lever to throw a projectile. They are typically large constructions, with the length of the beam as much as 15 meters (50 ft), with some purported to be even larger.
How long should the rope be on a trebuchet?
The length of the long arm of the beam (on the payload side) is 3.75 times the length of the short arm of the beam (on the counterweight side). The length of the sling is equal to the length of the long arm of the beam (on the payload side).
Can trebuchets move?
But they are technically mobile. Trebuchets, because they don’t recoil in the same way as catapults, can be put on wheels. In fact, doing so is advantageous for their accuracy, as I understand it, because of the way it lets the whole machine absorb some of the forces involved.
What were trebuchets used for?
While in medieval times trebuchets were used to hurl stones, manure, and even the bodies of enemies, today they are used to hurl pumpkins, cabbages, and the occasional piano or car (like in this video of the annual Punkin Chunkin).
Are trebuchets accurate?
Trebuchets, because they don’t recoil in the same way as catapults, can be put on wheels. In fact, doing so is advantageous for their accuracy, as I understand it, because of the way it lets the whole machine absorb some of the forces involved.