page_title: Curti Zefhir
section_title: Design
hierarchical_section_title: Curti Zefhir / Design
caption_attribution_description: English: AERO Friedrichshafen 2018
context_page_description: The Curti Zefhir is a two-seat light-single turbine-powered recreational or trainer helicopter designed and produced by Italian aircraft manufacturer Curti Aerospace.
  Development was partly funded by the European Commission. It performed its maiden flight in 2017 and was commercially launched at the April 2018 AERO Friedrichshafen. Curti aim to secure type certification of the Zefhir as an ultralight aircraft.
context_section_description: The Zefhir complies with EASA CS-27 requirements for larger helicopters and its critical flight elements are tested accordingly. The airframe is entirely made of lightweight composite materials, as are the rotor blades. Composites materials also permitted to optimise the aerodynamic design. Its low weight and compact size allows an ultralight certification.
  To recover without autorotation, the Zefhir is fitted with a ballistic parachute safety system. It is stored in a non-rotating box above the main rotor, attached to the airframe through a fixed shaft inside the rotor mast. Other systems includes a glass cockpit.
  PBSVB manufactures the Zefhir’s turboshaft, derated from 241 to 141 shp (180 to 105 kW) maximum continuously, and optimally controlled by FADEC. Its performance is consistent under adverse weather conditions or when flown at high altitude or high temperatures. The engine drives a two-bladed main rotor with a profile maximising efficiency while lowering noise pollution.
caption: Engine compartment
exif: {"Image Make": "Canon", "Image Model": "Canon EOS 5D Mark IV", "Image XResolution": "240", "Image YResolution": "240", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop Lightroom Classic 8.1 (Windows)", "Image DateTime": "2019:02:03 15:52:54", "Image Artist": "Matti Blume", "Image Copyright": "CC-BY-SA 4.0 Matti Blume", "Image ExifOffset": "296", "GPS GPSVersionID": "[2, 3, 0, 0]", "GPS GPSLatitudeRef": "N", "GPS GPSLatitude": "[47, 407837/10000, 0]", "GPS GPSLongitudeRef": "E", "GPS GPSLongitude": "[9, 306867/10000, 0]", "GPS GPSAltitudeRef": "0", "GPS GPSAltitude": "2001/5", "GPS GPSTimeStamp": "[12, 31, 22137/500]", "GPS GPSSatellites": "6", "GPS GPSStatus": "A", "GPS GPSMeasureMode": "3", "GPS GPSDOP": "37/10", "GPS GPSMapDatum": "WGS-84", "GPS GPSDate": "2018:04:18", "Image GPSInfo": "844", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "1220", "Thumbnail JPEGInterchangeFormatLength": "16681", "EXIF ExposureTime": "1/125", "EXIF FNumber": "9", "EXIF ExposureProgram": "Manual", "EXIF ISOSpeedRatings": "16000", "EXIF SensitivityType": "Recommended Exposure Index", "EXIF RecommendedExposureIndex": "16000", "EXIF ExifVersion": "0230", "EXIF DateTimeOriginal": "2018:04:18 14:32:12", "EXIF DateTimeDigitized": "2018:04:18 14:32:12", "EXIF ShutterSpeedValue": "870723/125000", "EXIF ApertureValue": "126797/20000", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "3", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "45", "EXIF SubSecTimeDigitized": "00", "EXIF ColorSpace": "sRGB", "EXIF FocalPlaneXResolution": "61166933/32768", "EXIF FocalPlaneYResolution": "61166933/32768", "EXIF FocalPlaneResolutionUnit": "3", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Manual Exposure", "EXIF WhiteBalance": "Auto", "EXIF SceneCaptureType": "Standard", "EXIF BodySerialNumber": "183056000697", "EXIF LensSpecification": "[24, 70, 0/0, 0/0]", "EXIF LensModel": "EF24-70mm f/2.8L II USM", "EXIF LensSerialNumber": "3320003227"}