The spine describes the flexibility of an arrow shaft—how much it bends under load. It is a crucial value for proper arrow tuning.

Types of spine:

Static spine

• Measured under standardized load
• Expressed as deflection in inches (e.g., 500, 400, 340)
• The lower the number, the stiffer the shaft

Dynamic spine

• Actual bending behavior during the shot
• Influenced by draw weight, draw length, arrow tip weight, and technique

Why spine matters:

• Foundation for accurate tuning
• Incorrect spine → side-to-side deviations
• Affects arrow flight and grouping

The spline refers to the stiffest direction of an arrow shaft.

No shaft is perfectly uniform in stiffness; manufacturing creates a slight primary stiffness direction, which is called the spline.

Significance:

• Affects how the arrow bends upon release
• Can influence consistency in grouping
• Considered in high-quality arrow construction

Application:

• Some archers align all their arrows so that the spline points in the same direction (e.g., toward the index feather) to achieve maximum consistency.

A stabilizer is an attachment on the bow—usually on the riser—that improves balance and steadiness at full draw. It typically consists of a rod (or multiple rods) with weights at the end.

Functions:

• Reduces vibrations
• Improves balance
• Steadies the sight picture
• Supports clean follow-through

Types:

• Long front stabilizer
• Side stabilizers (V-Bar system)
• Short stabilizers

Stabilizers are standard in recurve and compound competition archery.

Stance refers to the foot placement and body alignment of the archer relative to the shooting line. It forms the foundation for stability, balance, and repeatability in the shooting process.

Typical stances:

• Parallel stance → feet parallel to the shooting line
• Open stance → front foot slightly back
• Closed stance → front foot slightly forward

Significance:

• Provides a basis for consistent shots
• Influences body posture and shoulder alignment
• Supports the power triangle

A strand is a single thread or fiber within a bowstring. Multiple strands are bundled together to form the complete string.

Significance:

• The number of strands affects string strength
• Determines stability and durability
• Influences nock fit and arrow speed
• More strands → stronger, slightly heavier
• Fewer strands → lighter, but under more stress

The bowstring is the connecting element between the two limb tips of a bow. It stores the energy of the bow when drawn and transfers it to the arrow upon release.

Functions:

• Transfers energy to the arrow
• Provides a nocking point
• Connects to a release or fingers

Components:

• String strands (e.g., Dyneema, Dacron, Vectran)
• Center serving
• End servings
• Nocking point / nocking point limiter

Material choice affects:

• Shooting feel
• Arrow speed
• Durability

String blur refers to the visual perception of the bowstring in the archer’s peripheral vision while aiming. At full draw, the archer sees the string as a slightly blurred line beside or near the sight or target. This position serves as an additional reference for aligning the bow.

Significance:

• Helps control lateral alignment
• Supports consistent head position
• Acts as an aid to stabilize the sight picture

In recurve archery, the bowstring shadow is often used deliberately to maintain consistent bow alignment with the target.

A string board is a tool used for making and measuring bowstrings. It usually consists of a sturdy board or frame with adjustable pegs or hooks to set the desired string length.

Functions:

• Making endless or Flemish-spliced strings
• Precise length adjustment
• Even tensioning of the strands
• Checking string length before installation

A string board allows bowstrings to be made accurately and reproducibly.

Bowstring loops are the two loops at the ends of a bowstring. They are used to attach the string to the bowtips.

Functions:

• Connect the string to the limbs
• Ensure safe force transfer
• Fix the string length

Depending on the string construction, the loops are made by:

• Flemish twist (braided loops)
• End serving on endless strings

Important:
The size of the loops must match the bowtips—they should not be too loose or too tight.

String stretch describes how much a bowstring elongates under tension. The amount of stretch varies depending on the material and directly affects the bow’s shooting behavior.

Why it matters:

• More stretch → slightly lower arrow speed
• Less stretch → more direct energy transfer
• Stretch affects brace height and nock point
• Excessive stretch can alter tuning

Material differences:

• Dacron → higher stretch, gentle on traditional bows
• Modern high-performance fibers (e.g., Dyneema) → very low stretch, faster and more direct

In short:
The stretch of a string determines how directly energy is transferred—it influences speed, feel, and tuning of your bow. 🔥🏹

A stringer (bow stringer) is an aid used to safely string a bow. It is placed over both limb tips and allows the string to be drawn onto the bow in a controlled manner—without twisting the limbs.

Advantages:

• Gentle on the limbs
• Prevents misalignment
• Safer than the “step-through” method
• Especially recommended for recurve and longbows

Using a stringer increases safety and prolongs the lifespan of the bow.

String walking is an aiming technique used in barebow and traditional archery, where the finger position on the string is adjusted according to the distance to the target in order to control the point of impact.

How it works:

• The closer the target, the further down the string the fingers “walk” beneath the arrow.
• This changes the launch angle of the arrow.
• This allows the archer to hit different distances accurately without a sight.

Special notes:

• Typically used only with an underhand grip
• Common in barebow competition
• Requires good coordination of nock point and tiller

Age categories of the DSB for archery competitions: Archers in the Children class are typically under 15 years old.

Age categories of the DSB for archery competitions: Archers in the Children B class are aged 11 to 12 years.