Trebuchet Catapults - Fully Assembled Working Model Trebuchets , Trebuchet Kits , Trebuchet Plans
FREE Shipping
On All
U.S. Orders
View Shopping Cart
Trebuchet Store Main Page
Products
Assembled Models
Model Trebuchet Kits
Step by Step Plans and Instructions
Medieval Trebuchet
Roman Ballista
Tennis Ball Trebuchet
Golf Ball Trebuchet
Stirling Trebuchet
da Vinci Trebuchet
Highland Trebuchet
Statistics Catapult
da Vinci Spring Catapult
Repeating Crossbow
Onager Catapult
Archimedes Water Screw
Mangonel Catapult
Multi-Pack Plans Deals
Trebuchet and Catapult Design
How Does a Trebuchet Work ?
Human Powered Trebuchet
Simple Slingshot to the Trebuchet
Hybrid Trebuchet
Human Catapult
Catapult Design Plans
Ancient Engineers
Archimedes
Renaissance Engineers
Leonardo da Vinci
Ancient Engineering
Archimedes Screw
Archimedes Burning Mirror
Archimedes Claw
Archimedes Lever
Renaissance Engineering
Giant Crossbow
Build a Crossbow
Trebuchet Sling Release
Defensive Trebuchet
Basic Trebuchet Design
Modern Catapults
Six Sigma and Process Control
Grenade Catapult in WW1
Online Books
The  Crossbow
Projectile Throwing Engines
of the Ancients
Online Video
Catapult and Trebuchet Plans
Trebuchet Design
History
History and Mechanics of Trebuchets
Catapult Build a Catapult
Sling Weapons
Ancient Projectile Engines
Catapult History
Catapult and Trebuchet Illustrations
Siege Warfare
Animation
Trebuchet Animation
Catapult Animation
Large Trebuchet
Free Plans
Free Ballista Plans
Free Catapult Plans
Free Trebuchet Plans
Free Crossbow Plans
Gear
Trebuchet and Catapult Gear
Kind Words from Trebuchet Owners
Get  a Free Trebuchet Catalog
Have a Question? Please Contact Us
Links  and Link to Us
Site Index
Copyright © 2001-17
Gravity Power
TrebuchetStore.com - Catapults and Trebuchets - Assembled Models , Kits , Plans and More

The Crossbow   >  Chapter 26   >  Construction   >  How to Fit the Bowstring to the Bow  > p.116
Table of Contents List of Illustrations Index Appendix

The Crossbow

The bastard string was then removed from the bow till next required, fig. 71.

The bastard string (in its construction similar to the bow-string) was temporarily fixed to the arms of the steel bow by two little iron screw clamps, fig. 70, previous page. It hung rather loosely between the clamps when the latter were attached near the ends of the bow. The windlass was then used to pull the bastard string tight down over the fingers of the nut, where it was held fast whilst the bowstring was being fitted, fig. 70.

By regulating the position of the clamps on its bow, any crossbow could be bent by its windlass just enough to enable its bow-string to be removed or replaced.

To remove the bastard string (after having fitted the bowstring into the notches of the bow), do not pull the trigger of the crossbow. Hold one handle of the windlass with one hand and press the trigger at the same time with your other hand, then let the bastard string gradually slacken and the bowstring tighten as you reverse the windlass.

The fitted bowstring should be from 1/2 in. to 3/4 in. further along the groove in the stock, towards the nut, than a thread would be, if stretched between the ends of the bow whilst the latter was at rest previous to its bow-string being put on. In this crossbow the front of the string should be 5 in. from the inside upper edge of the centre of the bow, and the back of the string, 6 in. from the centre of the nut.

If the fitted bow-string is a little slack, take it off the bow by means of the bastard string. Undo the centre wrapping, give the string two or three twists to shorten it, then replace it on the bow and wrap its centre again.

If the string is very tight, and bends the bow too much - the string being, for instance, 1 1/2 in. along the stock instead of from 1/2 in. to 3/4 in. as above explained - there will be a waste of power; also a risk of fracture when the bow is fully bent by the windlass.


Table of Contents List of Illustrations <<   Previous Page Next Page   >>

Step by Step Plans and Instructions Save with Plans Deals
Calculate Trebuchet Shipping
International Orders International Orders
Click Here

Roman Ballista Plans Highland Trebuchet Plans da Vinci Spring Catapult Plans DaVinci Trebuchet Plans
Roman Ballista Highland Trebuchet daVinci Catapult daVinci Trebuchet
$12.95
FREE Shipping
$12.95
FREE Shipping
$12.95
FREE Shipping
$12.95
FREE Shipping
Plan # BP1
Plan # TP6
Plan # CP2
Plan # TP5
Add These Plans to Your Cart
Add These Plans to Your Cart
Add These Plans to Your Cart
Add These Plans to Your Cart
U.S. Orders Only U.S. Orders Only U.S. Orders Only U.S. Orders Only
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
$12.95
FREE Shipping
$12.95
FREE Shipping
$12.95
FREE Shipping
$12.95
FREE Shipping
Plan # TP2
Plan # TP1
Plan # TP3
Plan # TP4
Add These Plans to Your Cart Add These Plans to Your Cart Add These Plans to Your Cart Add These Plans to Your Cart
U.S. Orders Only U.S. Orders Only U.S. Orders Only U.S. Orders Only
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
$12.95
FREE Shipping
$12.95
FREE Shipping
$12.95
FREE Shipping
$12.95
FREE Shipping
Plan # OP1
Plan # MP1
Plan # CP1
Plan # RC1
Add These Plans to Your Cart Add These Plans to Your Cart Add These Plans to Your Cart Add These Plans to Your Cart
U.S. Orders Only U.S. Orders Only U.S. Orders Only U.S. Orders Only
Archimedes Water Screw Plans      
Archimedes Screw      
$12.95
FREE Shipping
     
Plan # WS1
Add These Plans to Your Cart      
U.S. Orders Only

Save up to 50% with Multi-Plan Deals

2 Plans $19.95 FREE Shipping - Save Over 30%
U.S. Orders Only
Select Plan # 1
Select Plan # 2
3 Plans $24.95 FREE Shipping - Save Over 35%
U.S. Orders Only
Select Plan # 1
Select Plan # 2
Select Plan # 3
4 Plans $29.95 FREE Shipping - Save over 40%
U.S. Orders Only
Select Plan # 1
Select Plan # 2
Select Plan # 3
Select Plan # 4
6 Plans $36.95 FREE Shipping - Save Over 50%
U.S. Orders Only
Select Plan # 1
Select Plan # 2
Select Plan # 3
Select Plan # 4
Select Plan # 5
Select Plan # 6

Working Model Trebuchet Kit DIY Trebuchet Kit Shipping

Trebuchet Kit
TK1
$69.00
FREE Shipping
Add These Plans to Your Cart
U.S. Orders Only
Kits In Stock Learn More About How a Trebuchet Works
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.

Read More >>


Fully Assembled Working Models
Assembled Model Trebuchet Shipping


daVinci Trebuchet
T4
$299.00
FREE Shipping
Add These Plans to Your Cart
U.S. Orders Only
Model in Stock
Learn More About How a Trebuchet Works
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. 

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 >>


Contact Us Site Index Privacy Policy
RedStoneProjects.com TrebuchetKit.com TrebuchetKits.com
TrebuchetStore.com CatapultStore.com TrebuchetPlan.com
CrossbowBook.com HowToBuildCatapults.com CatapultPlan.com