The PZL SW-4 Puszczyk (en: tawny owl) is a Polish light single-engine multipurpose helicopter manufactured by PZL-Świdnik. Following a protracted development, the SW-4 entered service in 2002, the primary operator of the type has been the Polish Armed Forces .

The SW-4 is a multi-purpose, light single engine helicopter with excellent performance, flight envelope and cabin space. Thanks to its characteristics, the helicopter is ideally suited for utility and training operations.

The SW-4 meets the market need for a multi-purpose, light single-engine helicopter that combines excellent performance, flight envelope and cabin space. Thanks to its flexible characteristics, the helicopter provides a cost-effective and capable solution for utility and training operations.

Jest to lekki śmigłowiec wielozadaniowy napędzany jednym silnikiem Rolls-Royce 250-C20R/2 o mocy 457 KM. Został zaprojektowany w zgodności z europejskimi przepisami lotniczymi JAR-27 i amerykańskimi FAR-27, a ponadto uzyskał certyfikaty MAK i EASA. Produkcja SW-4 odbywa się w zakładach PZL Świdnik od 2004 roku.

sw-4由波兰斯维德尼克公司（pzl）研制的4-5座单发多用途轻型直升机。1985年开始研制，1987年研制出全尺寸模型。1990年波兰政府为了使sw-4能打入国际市场制定了一项sw-4现代化计划，对sw-4进行全面改进，主要是重新选择发动机和航空电子设备。

SW-4直升机，是5座轻型直升机，重1.8吨，以航空煤油为燃料，飞行速度可达每小时260公里，飞行高度2000多米，航程624千米。为从波兰飞机制造商PZLSwidnik公司引进生产的机型。2013年6月一架SW-4直升机在山东执行施药防治病虫害任务时坠毁。

The PZL SW-4 is a Polish twin engine helicopter that was designed in the late 1950s and early 1960s. It has been used for disaster relief, passenger transport, air ambulance, and various military tasks. The aircraft is still being made today, with a production rate of six per year.

The PZL-Swidnik SW-4 is a light-single engine helicopter which first flew on October 29, 1996. Entered service in 2002 with the Polish Air Force. Parent company AgustaWestland developed an unmannned variant, the Solo, in 2012.

The SW-4 Solo, based on the proven SW-4 light single engine EASA certified helicopter, has been designed to be used both in manned (OPH - Optionally Piloted Helicopter) and in remotely piloted missions (RUAS - Rotary Unmanned Air System) to …

4民用直升机是5座轻型直升机，重1.8吨，以航空煤油为燃料，时速可达260公里，飞行高度为2000米，航程624千米。 适用于由波兰飞机制造商PZLSwidnik推出的机型。