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How a Trebuchet Catapult Works
| How
does a trebuchet work?
 A
trebuchet consists of five basic parts: the frame, counterweight, beam,
sling
and guide chute.
The frame supports the other components and provides
a raised platform from which to drop the counterweight.
The counterweight, pulled by gravity alone, rotates
the beam. The beam pulls the sling.
The guide chute guides the sling through the frame
and supports the enclosed projectile until acceleration is sufficient to
hold it in the sling.
The sling accelerates and holds the projectile
until release.
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How
the Beam Accelerates the Projectile
One end of the sling is fixed to the end of the
beam, while the other is tied in a loop and slipped over a release pin
extending from the end of the beam. As the beam rotates, it pulls the sling,
with its enclosed projectile, down the guide chute. As the sling exits
the chute, it accelerates in an arc away from the beam, but because the
beam is still pulling the sling behind, the loop is held on the pin. |
How
the Sling Releases the Projectile
The sling continues accelerating through its
arc until it eventually swings ahead of the release pin. At this point,
known as the release angle, the
loop slips off the pin and the sling opens... |
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Save up to 50% with Multi-Plan Deals
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| 2 Plans $19.95 FREE Shipping
- Save Over 30%
U.S. Orders Only |
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| Do It Yourself Working Model Trebuchet Kit |
|
Trebuchet
Kit
Item #TK
|
$75.00
Free
Shipping
U.S. Orders Only |
|
The trebuchet kit includes fully precut and drilled
frame parts, pins and axles, sling cord and sewn pouch, projectiles and
fully illustrated assembly and firing instructions.
Unlike the flimsy, snap together plywood trebuchet
kits, this all hardwood trebuchet kit does not require additional cutting,
trimming or shaping.
This DIY Trebuchet Kit requires only white carpenter's
glue and a few bar clamps (not included) to assemble.
Read More
> |
| Fully Assembled Working Model Trebuchet |
|
daVinci Trebuchet
Item # T4
|
$299.00
Free
Shipping
U.S. Orders Only
|
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Inspired by the great war machines and siege catapults of Leonardo da Vinci
, this all Red Oak
hardwood trebuchet features
an open counterweight cabinet for range and trajectory adjustment.
Fire with an empty counterweight for indoor use, or add weight (nuts,
bolts, scrap lead, iron or steel, sand, or small rocks not included)
for increased range.
Individually crafted from cabinet-grade red oak, the da Vinci Trebuchet
stands 14 inches tall in the cocked position, 24 inches tall in the fired
position and will hurl a projectile up to 60 feet. Includes six projectiles
and fully illustrated instructions.
Read More > |
How a Trebuchet Catapult Works |
