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Trebuchet Catapults - Fully Assembled Working Model Trebuchets , Trebuchet Kits , Trebuchet Plans

Catapult  -  Build a Catapult  - Catapult Design Plans
From  The Crossbow  by Sir Ralph Payne-Gallwey 1903
Catapult - Top View
Catapult  - Top View

I & II - Side Plates - 10 ft. 6 in. long, 1 ft. thick, 21 in. high forward of the skein bundle & 15 in. high aft.
III - Aft Cross Piece - 4 ft. long, 1 ft. thick, 15 in. high.
IV - Forward Cross Piece - 21 in. high, 1 ft. thick.
V - Center Cross Piece is 6 in. square.

Cross Pieces are mortised and  tenonned into the Side Plates

A - Skein of twisted cord - 8 in. diameter
B - Large Wheel
C - Pinion Wheel
D - Spindle Heads
E - Arm - 7 ft. long, 4 1/2 in. thick. Width tapers 8 in. at the butt, to 6 1/2 in. at the slip-hook ring bolt.
F - Roller 7 in. diameter
G - Spindle
H - Mortises for Uprights
K - Mortises for Sloping Supports

Catapult - Side View
Catapult  - Side View

A - Arm is  wound down with 1 1/4 in rope.
B - The catapult arm is fully wound down with a stone in the cup.

By pulling the the cord (E), the catpult arm is released from the slip hook and returns to its original position at A.

C - The position of the catapult Arm at the moment the stone leaves the Cup. The stone is projected upward at  45 degree angle (D). 

Click Here  to See a Catapult Animation.

Catapult - Front View
Catapult  - Front View showing the large top cross piece.
Catapult - Rear View
Catapult  - Rear View showing the rope, winding roller,
slip hook trigger, skein, winches and winch spanner.
Catapult - Skein Winches
Catapult  - Skein Winches

I - Surface view of one of the winches and its plate.
II - Side view of a winch as fitted in the catapult, with one end of the skein in position over the cross-bar of the large wheel of the winch.
III - Side view of the large wheel of the winch.
IV - Winch cross-bar.
V - Perspective view of the large wheeland pinion wheel of the winch.

Catapult - Skein
Catapult  - Skein 

A - The skein as first wound over the cross-bars of the large wheels of the winches.
B - The skein with the butt-end of the catapult arm placed between its halves.
C - The skein twisted up by the winches.

Catapult - Slip Hook
Catapult  - Slip Hook

The metal slip-hook pulls down the catapult arm and also releases it. The lever, or handle is 10 in. long. The point of the hook, in the eye of the bolt, is 1 in. thick.

Catapult - Metal Catch for a Small Catapult
Catapult  - Metal Catch for a Small Catapult

I - The end of the catapult arm (F) is held from escaping by the projection (B) of the hinged catch (D).  Knocking the end of the lever (A) with a mallet, releases the  leg of the catch (E). 
II - The catch then rotates, releasing the catapult arm (F).
III - Surface view of the catch holding the catapult arm.
IV - Perspective view of the catch.

Completed Catapult
Completed Catapult
Build This Catapult

Tabletop Mangonel
Catapult Plans
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Tabletop Mangonel Catapult PlansBuild your own Roman Mangonel with TrebuchetStore.com detailed, easy to follow plans and  instructions. When built, this Catapult stands 10"  inches tall  in the fired position and will throw a scale projectile up to 40 feet.

The predecessor to the sling equipped Onager, the Mangonel could throw huge stones and clusters of rocks, baked in clay over walls and into enemy fortifications. 

This easy to build classic torsion catapult model uses common, inexpensive and easy to find building materials, all available at your local home improvement store. 

This complete plans package includes a shopping list of materials,  measured drawings for all parts, step-by-step assembly drawings and instructions, as well as firing and tuning instructions.


Click on the images below for additional Roman Mangonel views.


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Roman Ballista Plans Highland Trebuchet Plans da Vinci Spring Catapult Plans DaVinci Trebuchet Plans
Roman Ballista Highland Trebuchet daVinci Catapult daVinci Trebuchet
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Tennis Ball Trebuchet Plans Table Top Trebuchet Plans Golf Ball Trebuchet Plans Stirling Trebuchet Plans
Tennis Ball Trebuchet Medieval Trebuchet Golf Ball Trebuchet Stirling Trebuchet
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Tabletop Roman Onager Plans Mangonel Catapult Plans Statistical Catapult Plans Build a Repeating Crossbow - Repeating Crossbow Plans
Roman Onager Roman Mangonel Statistics Catapult Repeating Crossbow
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Working Model Trebuchet Kit Calculate Trebuchet Shipping

Trebuchet Kit
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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, our all hardwood trebuchet kit does not require additional cutting, trimming or shaping.

Requires only white carpenter's glue and a few bar clamps (not included) to assemble. 


Fully Assembled Working Models

daVinci Trebuchet
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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.

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Catapult  -  Build a Catapult  - Catapult Design Plans

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