ATEC 122 Zephyr 2000

{{Infobox aircraft begin

| name=122 Zephyr 2000

| image=Zephyr 2000 OK-MUG 48.jpg

| caption=

}}{{Infobox aircraft type

| type=Ultralight aircraft and Light-sport aircraft

| national origin=Czech Republic

| manufacturer=ATEC v.o.s.

| designer=Oldrich Olansky

| first flight=

| introduced=1996{{cite web|url = http://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}}

| retired=

| status=In production

| primary user=

| more users=

| produced=

| number built=more than 200

| program cost=

| unit cost= 53,675 (assembled, 2011)

| developed from=

| variants with their own articles=ATEC 321 Faeta

}}

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.Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 124. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485XBayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 27. WDLA UK, Lancaster UK, 2011. ISSN 1368-485XTacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 29. Flying Pages Europe SARL, 2015. {{ISSN|1368-485X}}Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition, page 118. BAI Communications, 15 July 1998. {{ISBN|0-9636409-4-1}}

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.

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.

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.

The Zephyr was later developed into the ATEC 321 Faeta.

Variants

;Zephyr 2000

:base model for FAI microlight category.

;Zephyr 2550

:Light-sport aircraft model

Specifications (122 Zephyr 2000)

File:Zephyr 2000 D-MAHL.jpg

{{Aircraft specs

|ref=Bertrand and Purdy

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|crew=one

|capacity=one passenger

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|airfoil=UA-2

|empty weight kg=275

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|gross weight kg=472.5

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|fuel capacity={{convert|60|L}}

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|eng1 number=1

|eng1 name=Rotax 912ULS

|eng1 type=four cylinder, liquid and air-cooled, four stroke

|eng1 kw=75

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|max speed kmh=265

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|cruise speed kmh=215

|cruise speed mph=

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|cruise speed note=

|stall speed kmh=65

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|climb rate ftmin=

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|wing loading kg/m2=46.92

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References

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