Aviastroitel AC-5M
{{Short description|Russian motorglider}}
{{Use dmy dates|date=January 2022}}
{{Use American English|date=January 2022}}
{{Infobox aircraft begin
| name = AC-5M | image = ac5russia.jpg | caption = An AC-5K in a field at Hamilton Municipal Airport. }}{{Infobox aircraft type | type = Motor glider and Unmanned aerial vehicle | national origin = Russia | manufacturer = Aviastroitel | designer = | first flight = December 1999 | introduced = | retired = | status = In production | primary user = | more users = | produced = 2000-2003 | number built = 35 | developed from = Aviastroitel AC-4 Russia | variants with their own articles = }} |
The Aviastroitel AC-5M is a Russian mid-wing, single-seat, T-tailed motor glider and unmanned aerial vehicle that is produced by Aviastroitel, now Glider Air Craft.Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 54. Pagefast Ltd, Lancaster OK, 2003. ISSN 1368-485X{{Cite web|url = http://www.glidingsport.ru/ac/en/ourhistory/inde07.html|title = This Russian enterprise Aviastroitel |accessdate = 5 October 2011|last = Aviastroitel|authorlink = |year = 2006}}{{Cite web|url = http://www.glider.ru/en/glider/motorglider-ac-5m|title = Motor glider AC-5M|accessdate = 7 October 2011|last = Glider Air Craft|authorlink = |date = n.d.|archive-url = https://web.archive.org/web/20111022235738/http://www.glider.ru/en/glider/motorglider-ac-5m|archive-date = 22 October 2011|url-status = dead}}
Design and development
The AC-5M is derived from the motorized version of the Aviastroitel AC-4 Russia. Its design goals were to produce a simple and inexpensive self-launching sailplane. It had its first flight in December 1999 and production commenced in 2000 with a total of 35 completed.
The AC-5M features a {{convert|12.6|m|ft|1|abbr=on}} span wing that employs a Wortmann FX60-157 airfoil. The wings are mounted on the fuselage with a single cam-pin and the ailerons and air brakes hook-up automatically. Assembly can be accomplished by one person in five minutes. The engine is a {{convert|19|kW|hp|0|abbr=on}} Zanzottera MZ-35R, which is a special narrow engine design developed specifically for retractable engine motor gliders. The engine retracts rearwards into a bay behind the cockpit and is closed by two doors for drag reduction. The propeller is a two bladed wooden design of {{convert|1.18|m|in|0|abbr=on}} diameter. The landing gear is a retractable {{convert|310|mm|in|1|abbr=on}} monowheel gear with a lever-actuated drum brake, but without suspension. The cockpit can accommodate pilots up to {{convert|190|cm|in|1|abbr=on}} in height. The canopy provides 300° field of view and is jettisonable.
In 2003 the aircraft sold for US$33,000.
Operational history
In October 2011 there were 22 AC-5Ms registered with the US Federal Aviation Administration and one registered with Transport Canada. Because the aircraft was never type certified all American examples are in the Experimental - Racing/Exhibition category, while Canadian are in the Limited Category.{{Cite web|url = http://registry.faa.gov/aircraftinquiry/AcftRef_Results.aspx?Mfrtxt=&Modeltxt=AC-5M&PageNo=1|title = Make / Model Inquiry Results|accessdate = 5 October 2011|last = Federal Aviation Administration|authorlink = |date=October 2011}}{{Cite web|url=http://wwwapps.tc.gc.ca/Saf-Sec-Sur/2/CCARCS-RIACC/Menu.aspx |title=Canadian Civil Aircraft Register |accessdate=5 October 2011 |last=Transport Canada |authorlink= |date=October 2011 }}
Variants
;AC-5M
:Single seat motor glider powered by a {{convert|19|kW|hp|0|abbr=on}} Zanzottera MZ-35R two-stroke powerplant.
;AC-5MP
:Unmanned aerial vehicle version powered by a {{convert|60|kW|hp|0|abbr=on}} Rotax 912UL four stroke powerplant mounted on a fixed, non-retractable pylon. This version mounts equipment for satellite navigation, radio remote control, TV monitoring and autonomous operation and was intended to operate at altitudes from {{convert|400|to|8000|m|ft|0|abbr=on}}.
;AC-5K
:Version of the 5M, but with a fixed {{convert|32.3|kW|hp|0|abbr=on}} Simonini Victor 1 engine and a retractable two-blade wooden propeller.{{Cite web|url = http://www.glider.ru/en/glider/solo-ac-5k|title = Single Motorglider AC-5K|accessdate = 7 October 2011|last = Glider Air Craft|authorlink = |date = n.d.|archive-url = https://web.archive.org/web/20111022234522/http://www.glider.ru/en/glider/solo-ac-5k|archive-date = 22 October 2011|url-status = dead}}
;AC-5Me
:American developed prototype electric propulsion variant powered by a 25 kW (33.5 hp) Rotex RET-60, MGM-Compro HBC-280120-3EI controller and proprietary 4.4 kWh battery pack incorporating 448 Molicel P-26A cells.{{Citation needed|date=December 2022}}
Specifications (AC-5M)
{{Aircraft specs
|ref=World Directory of Leisure Aviation 2003-04 and company
|prime units?=met
|genhide=
|crew=one
|capacity=
|length m=5.3
|length ft=
|length in=
|length note=
|span m=12.6
|span ft=
|span in=
|span note=
|height m=1.3
|height ft=
|height in=
|height note=
|wing area sqm=7.7
|wing area sqft=
|wing area note=
|aspect ratio=20.5:1
|airfoil=Wortmann FX60-157
|empty weight kg=180
|empty weight lb=
|empty weight note=
|gross weight kg=300
|gross weight lb=
|gross weight note=
|fuel capacity=
|more general=
|eng1 number=1
|eng1 name=Zanzottera MZ-35R
|eng1 type=
|eng1 kw=19
|eng1 hp=
|prop blade number=2
|prop name= retractable
|prop dia m=
|prop dia ft=
|prop dia in=
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|max speed kmh=
|max speed mph=
|max speed kts=
|max speed note=
|cruise speed kmh=
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|cruise speed note=
|stall speed kmh=75
|stall speed mph=
|stall speed kts=
|stall speed note=
|never exceed speed kmh=220
|never exceed speed mph=
|never exceed speed kts=
|never exceed speed note=
|range km=
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|range nmi=
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|ceiling m=
|ceiling ft=
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|g limits=+5.3/-2.65
|roll rate=
|glide ratio=35:1 at {{convert|102|km/h|mph|0|abbr=on}}
|climb rate ms=2.5
|climb rate ftmin=
|climb rate note=
|sink rate ms=0.855
|sink rate ftmin=
|sink rate note= at {{convert|95|km/h|mph|0|abbr=on}}
|lift to drag=
|wing loading kg/m2=39
|wing loading lb/sqft=
|wing loading note=
|more performance=
|avionics=
}}
See also
References
{{reflist}}
External links
- [http://www.glidingsport.ru/ac/en/ourhistory/inde07.html Photos of the AC-5M]
- [http://www.airliners.net/photo/Aviastroitel-AS-5M/1309585/&sid=c68cdfcafd5e47641a7109f5d6808bb6 Photo of the AC-5M]
{{Aviastroitel aircraft}}
Category:1990s Russian sailplanes
Category:Aircraft first flown in 1999
Category:Aircraft with retractable bicycle landing gear
Category:Single-engined pusher aircraft