Quinjet

The Quinjet is an advanced technology S.H.I.E.L.D. jet frequently used by the Avengers for transportation. While only one was used prominately, several were seen on the deck of the S.H.I.E.L.D. Helicarrier.

History
The Quinjet is an advanced air craft used by S.H.I.E.L.D. and the Avengers for personal transport and arial combat. It is unknown when they were first created, however, there were seveal present during Steve Rodgers arrival on the S.H.I.E.L.D. Helicarrier.

In Stuttgart, Steve Rodgers, Natasha Romanoff. and several S.H.I.E.L.D. agents arrived in a Quinjet to intercept Loki. Natasha attempted to take Loki out with the Quinjet's forward turrent but couldn't target a clear shot. Tony Stark later hijacked the Quinjet's speaker system to play "Shot to Thrill" as he made his interance and swiftly took Loki out. However, as they were on there way back to the Helicarrier with their prisoner, the Quinjet was intercepted by Thor, who managed to force his way inside and make off with Loki.

Shortly after the attack on the Helicarrier, Captain America, Black Widow, and Hawkeye "hijack" a Quinjet in order to get to New York City and head off Loki and the Chitauri, however, shortly after arriving they are easily shot down by Loki and are forced to make a crash-landing.

Capabilities
The Quinjet has the ability to fly using rotor blades in its wings, similar to the Helicarrier.