Law 2: Shuttle

A feathered shuttle has 16 feathers fixed in the base.

Source: BWF Laws 2027, Law 2.2.1 · recall

The feathers have a uniform length between 62 and 70 mm; 58-68 mm is the circle of the tips.

Source: BWF Laws 2027, Law 2.2.2 · recall

A shuttle weighs from 4.74 to 5.50 grams.

Source: BWF Laws 2027, Law 2.2.6 · recall

The base is 25 to 28 mm across.

Source: BWF Laws 2027, Law 2.2.5 · recall

The base is rounded on the bottom.

Source: BWF Laws 2027, Law 2.2.5 · recall

Each length is inside 62-70 mm, but the Law asks for a uniform length, so mixed lengths fail.

Source: BWF Laws 2027, Law 2.2.2 · applied

The model is a natural feathered shuttle with a cork base covered by a thin layer of leather.

Source: BWF Laws 2027, Law 2.1 · recall

The feathers are fixed in the base, fastened with thread, and their tips form the open circle at the top.

Source: BWF Laws 2027, Law 2.2 · applied

4.74, then 16, then 28, then 70.

Source: BWF Laws 2027, Law 2.2 · applied

The tips of the feathers lie on a circle 58 to 68 mm across.

Source: BWF Laws 2027, Law 2.2.3 · applied

A shuttle may be made of natural and/or synthetic materials.

Source: BWF Laws 2027, Law 2.1 · recall

A skirt, or a synthetic imitation of feathers, replaces natural feathers.

Source: BWF Laws 2027, Law 2.3.1 · recall

Because synthetic materials differ from feathers, up to 10 per cent variation is acceptable.

Source: BWF Laws 2027, Law 2.3.3 · applied

Synthetic materials differ from feathers in specific gravity and other properties.

Source: BWF Laws 2027, Law 2.3.3 · recall

Synthetic or natural, a shuttle has to fly the way the classic feathered one does.

Source: BWF Laws 2027, Law 2.1 · recall

The base is as for a feathered shuttle; the 10 per cent allowance covers the length, tip circle and weight.

Source: BWF Laws 2027, Law 2.3.2, 2.3.3 · applied

A modification may be made only with no variation in the general design, speed and flight.

Source: BWF Laws 2027, Law 2.4 · recall

Law 2.4 allows a modification where altitude or climate demand it, with the approval of the Member Association concerned.

Source: BWF Laws 2027, Law 2.4 · applied

10, then 25, then 58, then 70 (the feathered figures, which a synthetic shuttle follows within 10 per cent).

Source: BWF Laws 2027, Law 2.3 · applied

Where altitude or climate make the standard shuttle unsuitable, the Member Association concerned may approve a modified one.

Source: BWF Laws 2027, Law 2.4 · applied