Spira

The Spira are large throwing knives, released in.

Characteristics
This weapon deals primarily damage.

Advantages:
 * High damage.
 * High damage – effective against armor.
 * Can penetrate straight through enemies, allowing it to hit multiple enemies if lined up.
 * Very fast reload speed.
 * Can be 'fired' automatically.
 * The arc of the shots enable headshots over cover.
 * Highest critical chance of all throwing knives.
 * Two polarity slots.
 * Silent.

Disadvantages:
 * Has travel time, making it difficult to land an accurate shot at long distances.
 * Shoots in an arc (height is unpredictable as it is either the top or the bottom of the sight despite having 100% accuracy), making it difficult for use at long range.
 * Slowest fire rate of all throwing knife weapons.
 * Unpredictable knife paths make it harder to take advantage of the weapons crit rate by getting headshots.

Tips

 * For effective use of non-hitscan weapons, it is strongly recommended to learn how to lead your target. In short, leading means aiming ahead of your target so the projectile still hits him. It can be a challenge to learn it, low level Grineer are recommended for practicing.

Bugs

 * The right throw does not land as the same place as the left throw. This is more evident while shooting at closer ranges, making it harder to land headshots.
 * This can be counteracted, however, by holding a datamass or a power cell.

Trivia

 * The Spira was one of the items (along with the Ninkondi and a crossbow) initially made exclusive to the Chinese build of Warframe.
 * The Spira is referred to in the game files as "littlelidaggers", a reference to the Little Li daggers (小李飛刀) which are the signature weapon of the martial artist Li Xunhuan in the famous Xiaoli Feidao novels written by Gu Long.