Nakai fighter

This type of fighter was used by the blue aliens. It is a small, oval-shaped craft apparently designed for short range missions.

Overview
The blue alien fighters have a single energy cannon mounted on the port side of the vessel near the nose. Its effectiveness is unclear: several working in concert were able to drain Destiny's shields somewhat quickly, but a single hit on the Ancient shuttle had little to no effect. They possess shields, but their strength is minimal and they were easily felled by both the Destiny's anti-fighter turrets and the weapons on the shuttle. There is a cutting laser on the underbelly of the craft, allowing the fighters to dock with and board other vessels by cutting a circular section of the hull out from beneath it. They are launched from the blue alien mothership. The crew compliment of these vessels is unclear. At the very least, they can hold two people.

History
Soon after Tau'ri arrived aboard Destiny, one of these ships detached itself from the hull and left. The fate of this one is unknown.

Later Vanessa James, Rennie, Dale Volker and Caine discovered another one on a barren planet. Its design is slightly different from the first, possessing wings and a slightly different hull design, possibly indicating that it is an older model given its state of disrepair. They were unable to open the hatch even with help of Nicholas Rush before the jump countdown expired. Rush was left on the planet by Everett Young and eventually managed to gain access to the ship. One of the systems he reactivated was a distress beacon. The aliens detected it and returned to the planet, where they discovered and captured Rush.

During the Battle of First Contact, a large number of fighters were launched by mothership. While some were destroyed, one attached to Destiny and penetrated the hull. The aliens captured Chloe Armstrong and retreated. Later, Rush and Chloe managed to steal one of fighters on the mothership and fly it back to Destiny. It was later jettisoned to prevent the aliens from tracking it.

When considering how the aliens found Destiny in the first place, Rush speculates that a tracking device has been placed on the hull. Sure enough, yet another alien fighter is found after a search. The shuttle was used to destroy it. Rush believes that it had been attached to Destiny longer than the expedition has been on board, presumably based on the memories he gained from the alien whose mind he read.

Trivia

 * The blue alien fighters are rare in that they possess shielding, something most small fighter craft lack. For example, the smallest Goa'uld vessel to possess shielding as a standard feature is the Al'kesh, a hyperspace-capable bomber.