ATEC 122 Zephyr 2000

{{Infobox aircraft | name = 122 Zephyr 2000 | logo = | logo_size = | image = Zephyr 2000 OK-MUG 48.jpg | alt = | caption = | long_caption = | other_names = | aircraft_type = Ultralight aircraft and Light-sport aircraft | aim = | outcome = | related = | national_origin = Czech Republic | manufacturer = ATEC v.o.s. | design_group = | designer = Oldrich Olansky | builder = | issuer = | status = In production | owners = | primary_user = | more_users = | service = | major_applications = | proposals = | prototypes = | number_built = more than 200 | construction_number = | civil_registration = | military_serial = | radio_code = | requirement = | aircraft_carried = | flights = | total_hours = | total_distance = | construction_date = | introduction = 1996<ref name="About">{{cite web|url = https://www.atecaircraft.eu/en/|title = Atec, v.o.s. Czech manufacturer of Hi-Tech ultralights|accessdate = 16 January 2015|last = ATEC v.o.s.|year = 2015}}</ref> | retired = | first_flight = | initiated = | in_service = | last_flight = | expected = | developed_from = | variants = ATEC 321 Faeta | developed_into = | preservation = | fate = | predecessors = | successors = | concluded = }} The '''ATEC 122 Zephyr 2000''' is a Czech ultralight aircraft, designed by Oldrich Olansky and produced by ATEC v.o.s. of Libice nad Cidlinou. The aircraft is supplied as a complete ready-to-fly-aircraft or as a kit for amateur construction.<ref name="WDLA04">Bertrand, Noel; Rene Coulon; et al: ''World Directory of Leisure Aviation 2003-04'', page 124. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485X</ref><ref name="WDLA11">Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 27. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X</ref><ref name="WDLA15">Tacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015-16'', page 29. Flying Pages Europe SARL, 2015. {{ISSN|1368-485X}}</ref><ref name="Aerocrafter">Purdy, Don: ''AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition'', page 118. BAI Communications, 15 July 1998. {{ISBN|0-9636409-4-1}}</ref>

==Design and development== The Zephyr was designed to comply with the Fédération Aéronautique Internationale microlight rules. It features a cantilever low-wing, a two-seats-in-side-by-side configuration enclosed cockpit under a bubble canopy, fixed tricycle landing gear, a T-tail and a single engine in tractor configuration.<ref name="WDLA04" /><ref name="WDLA11" /><ref name="WDLA15"/>

The aircraft's fuselage is made from composites with wooden bulkheads. The semi-tapered {{convert|9.6|m|ft|1|abbr=on}} span wing is made from plywood with composite spars and leading edges and employs a UA-2 airfoil. The wing is covered with doped aircraft fabric. The standard engine factory-supplied was the {{convert|100|hp|kW|0|abbr=on}} Rotax 912ULS four-stroke powerplant.<ref name="WDLA04" /><ref name="WDLA11" /><ref name="WDLA15"/><ref name="Aerocrafter" />

The Zephyr is noted for its low payload. With a useful load of {{convert|197.5|kg|lb|0|abbr=on}} and full fuel of {{convert|43|kg|lb|0|abbr=on}}, this leaves only {{convert|154.3|kg|lb|0|abbr=on}} for occupants and baggage.<ref name="WDLA04" /><ref name="WDLA11" /><ref name="WDLA15"/>

The Zephyr was later developed into the ATEC 321 Faeta.<ref name="WDLA04" />

==Variants== ;Zephyr 2000 :base model for FAI microlight category.<ref name="WDLA04" /> ;Zephyr 2550 :Light-sport aircraft model<ref name="WDLA11" /><ref name="WDLA15"/>

==Specifications (122 Zephyr 2000) == thumb|right|ATEC 122 Zephyr 2000 {{Aircraft specs |ref=Bertrand and Purdy<ref name="WDLA04" /><ref name="Aerocrafter" /> |prime units?=met  |genhide=

|crew=one |capacity=one passenger |length m= |length ft= |length in= |length note= |span m=9.6 |span ft= |span in= |span note= |height m= |height ft= |height in= |height note= |wing area sqm=10.07 |wing area sqft= |wing area note= |aspect ratio= |airfoil=UA-2 |empty weight kg=275 |empty weight lb= |empty weight note= |gross weight kg=472.5 |gross weight lb= |gross weight note= |fuel capacity={{convert|60|L}} |more general=  |eng1 number=1 |eng1 name=Rotax 912ULS |eng1 type=four cylinder, liquid and air-cooled, four stroke |eng1 kw=75 |eng1 hp=

|perfhide=

|max speed kmh=265 |max speed mph= |max speed kts= |max speed note= |cruise speed kmh=215 |cruise speed mph= |cruise speed kts= |cruise speed note= |stall speed kmh=65 |stall speed mph= |stall speed kts= |stall speed note= |never exceed speed kmh= |never exceed speed mph= |never exceed speed kts= |never exceed speed note= |range km= |range miles= |range nmi= |range note= |endurance= |ceiling m= |ceiling ft= |ceiling note= |g limits= |roll rate= |glide ratio= |climb rate ms=6.5 |climb rate ftmin= |climb rate note= |time to altitude= |sink rate ms= |sink rate ftmin= |sink rate note= |lift to drag= |wing loading kg/m2=46.92 |wing loading lb/sqft= |wing loading note= |power/mass= |thrust/weight= |more performance= |avionics= }}

==References== {{reflist}}

==External links== {{commons category}} *{{Official website|https://www.atecaircraft.eu/en/planes/atec-122-zephyr}}

Category:2000s Czech ultralight aircraft Category:Light-sport aircraft Category:Single-engined tractor aircraft Category:ATEC aircraft

ATEC 122 Zephyr 2000

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