Large siege trebuchet at full height

Photo from Wikimedia Commons
Trebuchet (Medieval)
The counterweight siege engine that shattered castle walls/Historical
The counterweight trebuchet was the most powerful siege engine of the medieval period, capable of hurling projectiles weighing 100-150 kg over 300 meters. A large trebuchet stood about 10-17 m tall with a throwing arm of 10-15 m. The counterweight box held 10-20 tonnes of stone or earth. Edward I's famous 'Warwolf' trebuchet, used at the Siege of Stirling Castle in 1304, was reportedly so large it took 30 wagons to transport and five master carpenters three months to build.
Measurements
Height15 m
169Crayons
224Tennis ball diameters
Arm length12 m
2.18Giraffes
6.74Samsung refrigerators
18.5Baguettes
Throwing beam
Counterweight mass15,000 kg
300,000Rubber ducks
150 billionthsReservoir water masses
Stone and earth fill
Projectile mass140 kg
3,050Golf balls
140,000Paperclips
103Costco rotisserie chickens
Typical stone projectile
Range300 m
1,000Celery stalks
1,500Burrito lengths
61.2Canoes
Maximum effective range
Base width6 m
30Cucumber lengths
113 billionBohr radii
2.39Phone booth heights
Timber frame footprint
Total machine mass20,000 kg
182 septillionHemoglobin molecule weights
111Male gorillas
5.71Forklifts
Frame and mechanism