The Zephyr is a special release ship that was gifted to every active capsuleer when wormholes were implemented, one ship each. The Zephyr at first seems like a standard shuttle, albeit one with a unique design. However, it's set apart from other ships in that Sleeper drones do not attack a Zephyr on sight. The cause for this is unknown, and CCP has not seen it fit to answer inquiries toward this unique trait. The Zephyr also has an order of magnitude lower mass than any other ship, making it very unlikely to collapse wormholes it uses.
Assembling a packaged Zephyr fits it with a Prototype Iris Probe Launcher, which cannot otherwise be acquired on the market.
Further information about additional or recommended skills to pilot Zephyr for a specific or its common role(s) can be written here.
No sub-article about Zephyr roles or piloting tactics. You can write them here.
A Zephyr was awarded to those who completed the first phase of the Sisters of EVE photography contest held in July 2013.