Zenith STOL CH 701: Difference between revisions

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{{Short description|Canadian family of light, two-seat aircraft}}
{{Use dmy dates|date=February 2022}}
{{Use Canadian English|date=February 2022}}
<!-- This article is a part of [[Wikipedia:WikiProject Aircraft]]. Please see [[Wikipedia:WikiProject Aircraft/page content]] for recommended layout. -->
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{|{{Infobox Aircraft Begin
{|{{Infobox aircraft begin
|name=CH 701 & CH 750
|name = CH 701 & CH 750
|image=ZenairCH701C-GBRT01.jpg
|image = ZenairCH701C-GBRT01.jpg
|caption= Zenair CH 701 on amphibious floats
|caption = Zenair CH 701 on amphibious floats
}}{{Infobox Aircraft Type
}}{{Infobox aircraft type
|type=Sport, personal and [[trainer aircraft]]
|type = [[Kit aircraft]]
|manufacturer=[[Zenith Aircraft Company]]
|manufacturer = [[Zenith Aircraft Company]]
|designer=Chris Heintz
|designer = [[Chris Heintz (aeronautical engineer)|Chris Heintz]]
|first flight= 1986
|first flight = 1986
|introduced=1986
|introduced = 1986
|retired=
|retired=
|status= In production
|status= In production
|primary user=
|primary user =
|more users=
|more users =
|produced=1986-present
|produced = 1986–present
|number built=870 (CH 701, December 2011)<br />45 (CH 750, December 2011)<ref name="KitplanesDec2011" />
|number built = 870 (CH 701, December 2011)<br />45 (CH 750, December 2011)<ref name="KitplanesDec2011" />
⚫
|developed from =
|unit cost=[[USD]]$19,480 (CH 750 kit, December 2011)<ref name="KitplanesDec2011" />
⚫
|variants with their own articles = [[Zenith STOL CH 801]]
⚫
|developed from=
⚫
|variants with their own articles= [[Zenith STOL CH 801]]
}}
}}
|}
|}
⚫
[[File:ZenairCH701photo01.JPG|thumb|A Zenith STOL CH 701 on wheels]]

[[File:Czech Aircraft Works Spol Sro ZENAIR CH 701 STOL.jpg|thumb|right|A Czech Aircraft Works-built CH 701]]
⚫
[[Image:ZenairCH701photo01.JPG|thumb|A Zenith STOL CH 701 on wheels]]
[[Image:Czech Aircraft Works Spol Sro ZENAIR CH 701 STOL.jpg|thumb|right|A Czech Aircraft Works built CH 701]]
[[File:CH-750.JPG|right|thumb|AMD-built CH 750]]
[[Image:CH-750.JPG|right|thumb|AMD built CH 750]]
[[File:Zenair STOL CH750 C-IKIM 1716.JPG|thumb|right|CH 750]]
[[File:Zenair STOL CH750 C-IKIM 1716.JPG|thumb|right|CH 750]]
[[File:Zenair STOL CH750 C-IKIM 1718.JPG|thumb|right|CH 750 instrument panel]]
[[File:Zenair STOL CH750 C-IKIM 1718.JPG|thumb|right|CH 750 instrument panel]]
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[[File:CH701TurbopropFlight.jpg|thumb|right|CH 701 Turboprop in flight]]
[[File:CH701TurbopropFlight.jpg|thumb|right|CH 701 Turboprop in flight]]


The '''Zenith STOL CH 701''' and '''CH 750''' are a family of light, two-place [[home-built aircraft|kit-built]] [[STOL]] aircraft designed by Canadian aeronautical engineer Chris Heintz through his [[Midland, Ontario]] based company, [[Zenair]]. The CH 701 first flew in 1986 and the design is still in production in 2011.<ref name="KitplanesDec2011">Vandermeullen, Richard: ''2011 Kit Aircraft Buyer's Guide'', Kitplanes, Volume 28, Number 12, December 2011, page 77 Belvoir Publications. ISSN 0891-1851</ref><ref name="KitPlanes">Kitplanes Staff: ''2008 Kit Aircraft Directory'', page 80, Kitplanes Magazine December 2007 Volume 24, Number 12, Belvior Publications, Aviation Publishing Group LLC.</ref> The CH 750 was first introduced in 2008.<ref name="Z750"> {{cite web|url = http://www.zenithair.com/stolch750/index.html|title = STOL CH 750|accessdate = 2008-08-09|last = Zenith Aircraft Company |authorlink = |date=July 2008}}</ref> The CH 701 was later developed into the four-place [[Zenith STOL CH 801]].<ref name="KitPlanes"/><ref name="WDLA11">Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 128. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X</ref>
The '''Zenith STOL CH 701''' and '''CH 750''' are a family of light, two-place [[home-built aircraft|kit-built]] [[STOL]] aircraft designed by Canadian aeronautical engineer [[Chris Heintz (aeronautical engineer)|Chris Heintz]] through his [[Midland, Ontario]], based company, [[Zenair]]. The CH 701 first flew in 1986 and the design is still in production.<ref name="KitplanesDec2011">Vandermeullen 2011, p. 77.</ref><ref name="KitPlanes">Kitplanes Staff 2007, p. 80.</ref> The CH 750 was first introduced in 2008.<ref name="Z750">[http://www.zenithair.com/stolch750/index.html "STOL CH 750 Light sport Utility."] ''Zenith Aircraft Company'', July 2008. Retrieved: September 4, 2017</ref> The CH 701 was later developed into the four-place [[Zenith STOL CH 801]].<ref name="KitPlanes"/><ref name="WDLA11">Bayerl et al. 2011, p. 128.</ref>


The kit is produced and distributed in the USA by the [[Zenith Aircraft Company]], and complete drawings, including blueprints and manuals, are also available for the design. In Europe, the CH 701 was manufactured under license by [[Czech Aircraft Works]] (CZAW) from 1992 until 2006, when the license agreement was ended.
The kit is produced and distributed in the US by the [[Zenith Aircraft Company]] of [[Mexico, Missouri]], and complete drawings, including blueprints and manuals, are also available for the design. In Europe, the CH 701 was manufactured under license by [[Czech Aircraft Works]] (CZAW) from 1992 until 2006, when the license agreement was ended.{{TOC limit|limit=2}}


==Design and development==
==Design and development==
Designed for off-runway operations, the all-metal CH 701 has many features that contribute to the aircraft's capabilities, such as a high-lift wing with full-span, non-movable [[leading edge slot]]s, an all flying [[rudder]], large tires, [[flaperons]] and an inverted [[elevator (aircraft)|elevator]]. Heintz also designed a unique tricycle gear amphibious float system for the CH 701.<ref name="WDLA11" />
Designed for off-runway operations, the all-metal CH 701 has many features that contribute to the aircraft's capabilities, such as a high-lift wing with full-span, non-movable [[leading edge slot]]s, an all-flying [[rudder]], large tires, [[flaperons]] and an inverted [[elevator (aircraft)|elevator]]. Heintz also designed a unique tricycle gear amphibious float system for the CH 701.<ref name="WDLA11" />


Standard engines used are the {{convert|64|hp|kW|0|abbr=on}} [[Rotax 582]] [[two-stroke]], the {{convert|80|hp|kW|0|abbr=on}} [[Rotax 912UL]], the {{convert|100|hp|kW|0|abbr=on}} [[Rotax 912ULS]] and the {{convert|85|hp|kW|0|abbr=on}} [[Jabiru 2200]] [[four-stroke]] powerplants.<ref name="WDLA11" /><ref name="ZenithEngines">{{cite web|url = http://www.zenithair.com/stolch701/7-engine.html|title = STOL CH 701 Engines|accessdate = 12 November 2012|last = [[Zenith Aircraft]]|date = 12 January 2009}}</ref>
Standard engines used are the {{convert|64|hp|kW|0|abbr=on}} [[Rotax 582]] [[two-stroke]], the {{convert|80|hp|kW|0|abbr=on}} [[Rotax 912UL]], the {{convert|100|hp|kW|0|abbr=on}} [[Rotax 912ULS]] and the {{convert|85|hp|kW|0|abbr=on}} [[Jabiru 2200]] [[four-stroke]] powerplants.<ref name="WDLA11" /><ref name="ZenithEngines">[http://www.zenithair.com/stolch701/7-engine.html "STOL CH 701 Engine."] ''[[Zenith Aircraft]]'', January 12, 2009. Retrieved: September 5, 2017.</ref> The aircraft has also been equipped with the [[JLT Motors Ecoyota]] engine,<ref name="WDLA15">Tacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015-16'', pages 256-257. Flying Pages Europe SARL, 2015. {{ISSN|1368-485X}}</ref><ref>{{cite web|url = http://ecoyota.neuf.fr/Page_1x.html/|title = Le Nouveau Moteur 4 Temps Pour Ulm|access-date = 15 March 2018|author=JLT Motors|work = ecoyota.neuf.fr|year=2007|archive-url = https://web.archive.org/web/20081014121101/http://ecoyota.neuf.fr:80/Page_1x.html/|archive-date = 14 October 2008}}</ref> as well as popular 4 cylinder Continental engines (A-65/C-85) which Zenith still offers an engine mount for.<ref>{{Cite web |title=STOL CH 701 Engine / Powerplant |url=http://www.zenithair.com/stolch701/7-engine.html |access-date=2023-05-07 |website=www.zenithair.com}}</ref>


The STOL CH 701 has the unique distinction of being what is probably the most copied light aircraft in production today. Several dozen unauthorized versions have been produced around the world.<ref name="WDLA11" /><ref>{{cite web|url = http://www.zenithair.com/stolch701/7-photo-copies.html|title = STOL CH701|accessdate = 2007-12-06|last = Zenith Aircraft Company|authorlink = |year = undated}}</ref>
The STOL CH 701 has the unique distinction of being what is probably the most copied light aircraft in production today. Several dozen unauthorized versions have been produced around the world.<ref name="WDLA11" /><ref>[http://www.zenithair.com/stolch701/7-photo-copies.html 'STOL CH701.'] ''Zenith Aircraft''. Retrieved: September 5, 2017.</ref>


Designed to the Light Aircraft Manufacturers Association of Canada (LAMAC) design standard DS 10141, in its native country of [[Canada]] the CH 701 can be built and flown as a [[basic ultralight]], [[advanced ultralight]] or amateur-built.<ref> {{cite web|url = http://www.tc.gc.ca/civilaviation/general/recavi/Ultralight/ULTransitionStrategy/menu.htm|title = Ultra-light Transition Stategy|accessdate = 2007-12-06|last = Transport Canada|authorlink = |date=April 2007}}</ref><ref> {{cite web|url = http://www.tc.gc.ca/civilaviation/general/CCARCS/advancedullist.htm|title = Listing of Models Eligible to be Registered as Advanced Ultra-Light Aeroplanes (AULA)|accessdate = 2007-12-06|last = Transport Canada|authorlink = |date=November 2007}}</ref> The CH 701 can be flown under [[Ultralight aviation|microlight or ultralight]] rules in several other countries also. American pilots may fly the CH 701 under [[Light-sport Aircraft]] rules or as an experimental amateur-built.<ref name="KitPlanes"/> The CH 750 is designed to comply with the US [[Light sport aircraft]] rules.<ref name="Z750"/>
Designed to the Light Aircraft Manufacturers Association of Canada (LAMAC) design standard DS 10141, in its native country of [[Canada]] the CH 701 can be built and flown as a [[basic ultralight]], [[advanced ultralight]] or amateur-built.<ref>[http://www.tc.gc.ca/civilaviation/general/recavi/Ultralight/ULTransitionStrategy/menu.htm "Ultra-light Transition Strategy."] ''Transport Canada'', April 2007. Retrieved: September 4, 2017.</ref><ref>[http://www.tc.gc.ca/civilaviation/general/CCARCS/advancedullist.htm "Listing of models eligible to be registered as advanced Ultra-Light aeroplanes (AULA)."] ''Transport Canada'', November 2007. Retrieved: September 4, 2017.</ref> The CH 701 can be flown under [[Ultralight aviation|microlight or ultralight]] rules in several other countries also. American pilots may fly the CH 701 under [[Light-sport Aircraft]] rules or as an experimental amateur-built.<ref name="KitPlanes"/> The CH 750 is designed to comply with the US [[Light sport aircraft]] rules.<ref name="Z750"/>


==Operational history==
==Operational history==
By the fall of 2007 750 CH 701s had been completed and were flying.<ref name="KitPlanes"/>
By the fall of 2007, 750 CH 701s had been completed and were flying.<ref name="KitPlanes"/> In July 2014, representatives of the company gathered volunteers of the EAA Airventure airshow to build a CH-750 kit in a one-week timeframe.<ref>[https://issuu.com/eaahq/docs/avt_072714_final2 "Aviation community unites behind one week wonder."] ''Airventure Today'', July 27, 2014, p. 4. Retrieved: September 4, 2017.</ref>


==Variants==
==Variants==
;STOL CH 701
;STOL CH 701
:Original version. 960lbs gross and 10 gal header tank. steel spring gear and Rotax 503.<ref>{{Cite web |title=Zenith STOL Serial No. 001 flies again — General Aviation News |url=https://generalaviationnews.com/2020/07/07/zenith-stol-serial-no-001-flies-again/ |access-date=2023-05-07 |website=generalaviationnews.com |language=en-US}}</ref>
:Base model, introduced in 1986, with a gross weight of 1100 lbs (500 kg).
;STOL CH 701SP
:Comes with two standard {{convert|10|u.s.gal}} wing tanks, solid aluminum spring gear. Smaller refinements to achieve a gross weight of 1100 lbs (500 kg).<ref>{{Cite web|url=http://www.zenithair.com/stolch701/7-perf.html|title=STOL CH 701 Performance and Specifications: Real Short Take Off and Landing performance|website=www.zenithair.com|access-date=21 September 2018}}</ref>
;STOL CH 750
;STOL CH 750
:Introduced at [[AirVenture]] 2008, it has an enlarged cabin with wider doors and is optimized for the US [[Light Sport Aircraft]] rules with a maximum takeoff weight of 1320 lbs (600 kg). Builders may also opt to register it for operation on water at 1430 lbs (650 kg) while remaining within the LSA limits, or as an experimental amateur built aircraft up to 1440 lbs (655 kg.)<ref name="Z750"/><ref name="WDLA11" />
:Introduced at [[AirVenture]] 2008, the STOL CH 750 has an enlarged cabin with wider doors and is optimized for US [[Light Sport Aircraft]] rules with a maximum takeoff weight of 1320 lbs (600 kg). Builders may also opt to register it for operation on water at 1430 lbs (650 kg) while remaining within the LSA limits, or as an experimental amateur-built aircraft up to 1440 lbs (655 kg.)<ref name="Z750"/><ref name="WDLA11" /> The STOL CH 750 was also to be factory-built by [[Aircraft Manufacturing and Design|AMD]] as a [[Special Light Sport Aircraft]] but as of 2014 is listed by the FAA as no longer produced as an SLSA.<ref>[[Federal Aviation Administration]], [http://www.faa.gov/aircraft/gen_av/light_sport/media/SLSA_Directory.xls "List of Approved SLSA."] ''FAA''. Retrieved: September 4, 2017.</ref>
[[File:CH750cruzer.jpg|thumb|right|CH750 Cruzer]]
[[File:CH750cruzer.jpg|thumb|right|CH750 Cruzer]]
;CH-750 Cruzer
;CH 750 Cruzer
:Introduced at [[Sun 'n Fun]] 2013 the CH-750 Cruzer uses a new non-STOL wing and new design tail with a separate fin and rudder. The model is optimized for cross country speed rather than STOL capabilities. It mounts [[wheel pants]] and the prototype is powered by a {{convert|130|hp|kW|0|abbr=on}} [[ULPower UL350is]] fuel injected engine, although other engines in the {{convert|100|hp|kW|0|abbr=on}} range can be used.<ref name="Niles12Apr13">{{cite news|url = http://www.avweb.com/news/snf/SunNFun2013_Zenair_750_Cruzer_208494-1.html|title = Zenair Introduces CH-750 Cruzer|accessdate = 13 April 2013|last = Niles|first = Russ|date = 12 April 2013| work = AVweb}}</ref>
:Introduced at [[Sun 'n Fun]] 2013, the CH-750 Cruzer uses a new wing without the leading-edge slats of the STOL CH 750, and a newly designed tail with a separate vertical fin and rudder, rather than the all-flying rudder of the STOL version. The model is optimized for cross-country speed rather than STOL capabilities, although the specified 350 ft (107 m) ground roll of the Cruzer qualifies as [[STOL]] by most definitions. It mounts [[wheel pants]] as standard (although these may be removed and larger wheels installed) and the prototype is powered by a {{convert|130|hp|kW|0|abbr=on}} [[ULPower]] UL350is fuel injected engine, although other engines in the {{convert|100-160|hp|kW|0|abbr=on}} range can be used.<ref name="Niles12Apr13">Niles, Russ. [http://www.avweb.com/news/snf/SunNFun2013_Zenair_750_Cruzer_208494-1.html "Zenair Introduces CH-750 Cruzer."] ''AVweb'', April 12, 2013. Retrieved: September 4, 2017.</ref><ref name="CH 750 Versions">[http://www.zenithair.com/stolch750/750-crz-performance.html "Zenith CH 750/Cruzer Comparison."] ''Zenith Aircraft''. Retrieved: September 4, 2017.</ref><ref name="WDLA15b">Tacke et al. 2015, p. 135.</ref>
;STOL CH750 Super Duty
:This model introduced greater carrying capacity and climb capabilities. It can be powered by engines with a range of {{convert|150|to|230|hp|kW|0|abbr=on}}, with the prototype powered by a {{convert|205|hp|kW|0|abbr=on}} [[Aero Sport Power IO-375]] powerplant, which gave a cruise speed of {{convert|105|mph|km/h|0|abbr=on}} and a rate of climb of 1350 fpm (6.9 m/s). Gross weight is {{convert|1900|lb|kg|0|abbr=on}}, with a typical empty weight of {{convert|1100|lb|kg|0|abbr=on}}.<ref>{{cite web|url=http://www.zenithair.net/introduction-ch-750-super-duty/|title=Zenith Aircraft Company|website=zenithair.net|access-date=30 March 2019}}</ref>
;Nuncats Sky jeep
: Electric-powered derivative of CH 750, that was first flown in January 2023.<ref>Batchelor 2021, p. 62.</ref><ref>Calderwood, Dave. [https://www.flyer.co.uk/electric-sky-jeep-from-old-buckenham-company/ "'Electric sky jeep' from Old Buckenham company"]. ''Flyer'', 11 May 2021. Retrieved 29 June 2021.</ref><ref>{{cite web|url= https://www.avweb.com/recent-updates/experimentals/electric-zenith-ch-750-completes-first-flight/|title= Electric Zenith CH 750 Completes First Flight|access-date= 31 January 2023|last= O'Connor|first= Kate |work= AVweb|date= 30 January 2023|archive-url= https://archive.today/20230131132019/https://www.avweb.com/recent-updates/experimentals/electric-zenith-ch-750-completes-first-flight/|archive-date= 31 January 2023|url-status= live}}</ref>


==Operators==
⚫
==Specifications (CH 701)==
:{{IND}}
*[[Indian Air Force]] - ordered 85 aircraft, with options for a further 48 for use by the [[National Cadet Corps (India)|National Cadet Corps]] with 25 in service by February 2001.<ref>"Airscene: Aero India" 2001, pp. 254–255.</ref>


⚫
==Specifications (CH 701)==
{{Aircraft specs
{{Aircraft specs
|ref=Jane's All The World's Aircraft 1993-94<ref name="Janes 93 p41"> Lambert 1993, p.41.</ref> and Zenith Aircraft<ref name="Specs701"> {{Cite web|url = http://www.zenithair.com/stolch701/7-perf.html|title = STOL CH 701 Performance and Specifications|accessdate = 11 May 2011|last = [[Zenith Aircraft]] |authorlink = |year = undated}}</ref>
|ref=Jane's All The World's Aircraft 1993-94<ref name="Janes 93 p41">Lambert 1993, p. 41.</ref> and Zenith Aircraft<ref name="Specs 701">[http://www.zenithair.com/stolch701/7-perf.html "STOL CH 701 Performance and specifications."] ''Zenith Aircraft''. Retrieved: September 4, 2017.</ref>
|prime units?=imp<!-- imp or kts first for US aircraft, and UK aircraft pre-metrification, met(ric) first for all others. You MUST choose a format, or no specifications will show -->
|prime units?=imp<!-- imp or kts first for US aircraft, and UK aircraft pre-metrification, met(ric) first for all others. You MUST choose a format, or no specifications will show -->
<!--
<!--
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|genhide=
|genhide=


|crew=2
|crew=two
|capacity=
|capacity=
|length m=
|length m=
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|eng1 number=1
|eng1 number=1
|eng1 name=[[Rotax 912]]
|eng1 name=[[Rotax 912]]
|eng1 type=four-cylinder liquid cooled [[piston engine]]
|eng1 type=four-cylinder liquid-cooled [[piston engine]]
|eng1 kw=<!-- prop engines -->
|eng1 kw=<!-- prop engines -->
|eng1 hp=80<!-- prop engines -->
|eng1 hp=80<!-- prop engines -->
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|range note=with standard fuel
|range note=with standard fuel
|endurance=4.6 hours
|endurance=4.6 hours
|ceiling m=
|ceiling m=3,657.6
|ceiling ft=12000
|ceiling ft=12,000
|ceiling note=
|ceiling note=
|g limits=+6/-3 (ultimate)
|g limits=+6/-3 (ultimate)
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|glide ratio=<!-- sailplanes -->
|glide ratio=<!-- sailplanes -->
|climb rate ms=
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|climb rate note=
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|time to altitude=
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==See also==
==See also==
⚫
*[[Zenith STOL CH 801]]
*[[ICP Savannah]]
*[[ICP Savannah]]
*[[Tapanee Pegazair-100]]
⚫
*[[Zenith STOL CH 801]]


==References==
==References==
===Notes===
{{reflist}}
{{Reflist}}

===Bibliography===
{{Refbegin}}
* "Airscene: Aero India." ''[[Air International]]'', Volume 60, Issue 4, April 2001. {{ISSN|0306-5634}}.
* Batchelor, Tom. "The electric sky jeep". ''[[Air International]]'', Vol. 101, No. 1, July 2021. pp.&nbsp;62–66. {{ISSN|0306-5634}}.
* Bayerl, Robby, Martin Berkemeier, et al. ''World Directory of Leisure Aviation 2011-12''. Lancaster UK: WDLA UK, 2011. {{ISSN|1368-485X}}.
* Kitplanes Staff. "2008 Kit Aircraft Directory." ''Kitplanes'', Volume 24, Number 12, December 2007. {{ISSN|0891-1851}}.
⚫
* Lambert, Mark, ed. ''Jane's All The World's Aircraft 1993-94''. Coulsdon, UK: Jane's Data Division, 1993. {{ISBN|0-7106-1066-1}}.
* Tacke, Willi, Marino Boric, et al. "World Directory of Light Aviation 2015-16." ''Flying Pages Europe SARL'', 2015. {{ISSN|1368-485X}}.
* Vandermeullen, Richard: "2011 Kit Aircraft Buyer's Guide." ''Kitplanes'', Volume 28, Number 12, December 2011. {{ISSN|0891-1851}}
{{Refend}}


⚫
* {{cite book |last=Lambert|first=Mark (editor)|title=Jane's All The World's Aircraft 1993-94|year=1993 |publisher=Jane's Data Division|location=Coulsdon, UK |isbn=0-7106-1066-1 }}
==External links==
==External links==
*{{Official website|http://www.zenithair.com/stolch701/index1.html}}
* {{Official website|http://www.zenithair.com/stolch701/index1.html}}


{{Commons category multiple|Zenith STOL CH 701|Zenair STOL CH750}}
{{Zenair}}
{{Zenair}}
{{Uncertified aircraft developed in Canada}}
{{Aviation lists}}

[[Category:Canadian ultralight aircraft 1980–1989]]
[[Category:1980s Canadian ultralight aircraft]]
[[Category:Light-sport aircraft]]
[[Category:Light-sport aircraft]]
[[Category:Zenair aircraft|CH 701]]
[[Category:Zenair aircraft|CH 701]]
[[Category:Zenith aircraft|CH 701]]
[[Category:Zenith aircraft|CH 701]]
[[Category:High-wing aircraft]]
[[Category:High-wing homebuilt aircraft]]
[[Category:Single-engined tractor aircraft]]
[[Category:Single-engined tractor aircraft]]
[[Category:STOL aircraft]]
[[Category:Aircraft first flown in 1986]]

Latest revision as of 17:58, 6 October 2023

CH 701 & CH 750
Zenair CH 701 on amphibious floats
Role Kit aircraft
Manufacturer Zenith Aircraft Company
Designer Chris Heintz
First flight 1986
Introduction 1986
Status In production
Produced 1986–present
Number built 870 (CH 701, December 2011)
45 (CH 750, December 2011)[1]
Variants Zenith STOL CH 801
A Zenith STOL CH 701 on wheels
A Czech Aircraft Works-built CH 701
AMD-built CH 750
CH 750
CH 750 instrument panel
CH 701 Turboprop
CH 701 Turboprop in flight

The Zenith STOL CH 701 and CH 750 are a family of light, two-place kit-built STOL aircraft designed by Canadian aeronautical engineer Chris Heintz through his Midland, Ontario, based company, Zenair. The CH 701 first flew in 1986 and the design is still in production.[1][2] The CH 750 was first introduced in 2008.[3] The CH 701 was later developed into the four-place Zenith STOL CH 801.[2][4]

The kit is produced and distributed in the US by the Zenith Aircraft Company of Mexico, Missouri, and complete drawings, including blueprints and manuals, are also available for the design. In Europe, the CH 701 was manufactured under license by Czech Aircraft Works (CZAW) from 1992 until 2006, when the license agreement was ended.

Design and development[edit]

Designed for off-runway operations, the all-metal CH 701 has many features that contribute to the aircraft's capabilities, such as a high-lift wing with full-span, non-movable leading edge slots, an all-flying rudder, large tires, flaperons and an inverted elevator. Heintz also designed a unique tricycle gear amphibious float system for the CH 701.[4]

Standard engines used are the 64 hp (48 kW) Rotax 582 two-stroke, the 80 hp (60 kW) Rotax 912UL, the 100 hp (75 kW) Rotax 912ULS and the 85 hp (63 kW) Jabiru 2200 four-stroke powerplants.[4][5] The aircraft has also been equipped with the JLT Motors Ecoyota engine,[6][7] as well as popular 4 cylinder Continental engines (A-65/C-85) which Zenith still offers an engine mount for.[8]

The STOL CH 701 has the unique distinction of being what is probably the most copied light aircraft in production today. Several dozen unauthorized versions have been produced around the world.[4][9]

Designed to the Light Aircraft Manufacturers Association of Canada (LAMAC) design standard DS 10141, in its native country of Canada the CH 701 can be built and flown as a basic ultralight, advanced ultralight or amateur-built.[10][11] The CH 701 can be flown under microlight or ultralight rules in several other countries also. American pilots may fly the CH 701 under Light-sport Aircraft rules or as an experimental amateur-built.[2] The CH 750 is designed to comply with the US Light sport aircraft rules.[3]

Operational history[edit]

By the fall of 2007, 750 CH 701s had been completed and were flying.[2] In July 2014, representatives of the company gathered volunteers of the EAA Airventure airshow to build a CH-750 kit in a one-week timeframe.[12]

Variants[edit]

STOL CH 701
Original version. 960lbs gross and 10 gal header tank. steel spring gear and Rotax 503.[13]
STOL CH 701SP
Comes with two standard 10 U.S. gallons (38 L; 8.3 imp gal) wing tanks, solid aluminum spring gear. Smaller refinements to achieve a gross weight of 1100 lbs (500 kg).[14]
STOL CH 750
Introduced at AirVenture 2008, the STOL CH 750 has an enlarged cabin with wider doors and is optimized for US Light Sport Aircraft rules with a maximum takeoff weight of 1320 lbs (600 kg). Builders may also opt to register it for operation on water at 1430 lbs (650 kg) while remaining within the LSA limits, or as an experimental amateur-built aircraft up to 1440 lbs (655 kg.)[3][4] The STOL CH 750 was also to be factory-built by AMD as a Special Light Sport Aircraft but as of 2014 is listed by the FAA as no longer produced as an SLSA.[15]
CH750 Cruzer
CH 750 Cruzer
Introduced at Sun 'n Fun 2013, the CH-750 Cruzer uses a new wing without the leading-edge slats of the STOL CH 750, and a newly designed tail with a separate vertical fin and rudder, rather than the all-flying rudder of the STOL version. The model is optimized for cross-country speed rather than STOL capabilities, although the specified 350 ft (107 m) ground roll of the Cruzer qualifies as STOL by most definitions. It mounts wheel pants as standard (although these may be removed and larger wheels installed) and the prototype is powered by a 130 hp (97 kW) ULPower UL350is fuel injected engine, although other engines in the 100–160 hp (75–119 kW) range can be used.[16][17][18]
STOL CH750 Super Duty
This model introduced greater carrying capacity and climb capabilities. It can be powered by engines with a range of 150 to 230 hp (112 to 172 kW), with the prototype powered by a 205 hp (153 kW) Aero Sport Power IO-375 powerplant, which gave a cruise speed of 105 mph (169 km/h) and a rate of climb of 1350 fpm (6.9 m/s). Gross weight is 1,900 lb (862 kg), with a typical empty weight of 1,100 lb (499 kg).[19]
Nuncats Sky jeep
Electric-powered derivative of CH 750, that was first flown in January 2023.[20][21][22]

Operators[edit]

 India

Specifications (CH 701)[edit]

Data from Jane's All The World's Aircraft 1993-94[24] and Zenith Aircraft[25]

General characteristics

  • Crew: two
  • Length: 20 ft 11 in (6.38 m)
  • Wingspan: 27 ft 0 in (8.23 m)
  • Height: 8 ft 7 in (2.62 m)
  • Wing area: 122.0 sq ft (11.33 m2)
  • Aspect ratio: 5.98:1
  • Empty weight: 580 lb (263 kg)
  • Max takeoff weight: 1,100 lb (499 kg)
  • Fuel capacity: 20 US Gal (76 L)
  • Powerplant: 1 × Rotax 912 four-cylinder liquid-cooled piston engine, 80 hp (60 kW)

Performance

  • Maximum speed: 85 mph (137 km/h, 74 kn) at sea level
  • Cruise speed: 80 mph (130 km/h, 70 kn)
  • Stall speed: 30 mph (48 km/h, 26 kn)
  • Never exceed speed: 110 mph (180 km/h, 96 kn)
  • Range: 372 mi (599 km, 323 nmi) with standard fuel
  • Endurance: 4.6 hours
  • Service ceiling: 12,000 ft (3,657.6 m)
  • g limits: +6/-3 (ultimate)
  • Rate of climb: 1,000 ft/min (5.1 m/s)
  • Wing loading: 9.0 lb/sq ft (44 kg/m2)

See also[edit]

References[edit]

Notes[edit]

  1. ^ a b Vandermeullen 2011, p. 77.
  2. ^ a b c d Kitplanes Staff 2007, p. 80.
  3. ^ a b c "STOL CH 750 Light sport Utility." Zenith Aircraft Company, July 2008. Retrieved: September 4, 2017
  4. ^ a b c d e Bayerl et al. 2011, p. 128.
  5. ^ "STOL CH 701 Engine." Zenith Aircraft, January 12, 2009. Retrieved: September 5, 2017.
  6. ^ Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, pages 256-257. Flying Pages Europe SARL, 2015. ISSN 1368-485X
  7. ^ JLT Motors (2007). "Le Nouveau Moteur 4 Temps Pour Ulm". ecoyota.neuf.fr. Archived from the original on 14 October 2008. Retrieved 15 March 2018.
  8. ^ "STOL CH 701 Engine / Powerplant". www.zenithair.com. Retrieved 7 May 2023.
  9. ^ 'STOL CH701.' Zenith Aircraft. Retrieved: September 5, 2017.
  10. ^ "Ultra-light Transition Strategy." Transport Canada, April 2007. Retrieved: September 4, 2017.
  11. ^ "Listing of models eligible to be registered as advanced Ultra-Light aeroplanes (AULA)." Transport Canada, November 2007. Retrieved: September 4, 2017.
  12. ^ "Aviation community unites behind one week wonder." Airventure Today, July 27, 2014, p. 4. Retrieved: September 4, 2017.
  13. ^ "Zenith STOL Serial No. 001 flies again — General Aviation News". generalaviationnews.com. Retrieved 7 May 2023.
  14. ^ "STOL CH 701 Performance and Specifications: Real Short Take Off and Landing performance". www.zenithair.com. Retrieved 21 September 2018.
  15. ^ Federal Aviation Administration, "List of Approved SLSA." FAA. Retrieved: September 4, 2017.
  16. ^ Niles, Russ. "Zenair Introduces CH-750 Cruzer." AVweb, April 12, 2013. Retrieved: September 4, 2017.
  17. ^ "Zenith CH 750/Cruzer Comparison." Zenith Aircraft. Retrieved: September 4, 2017.
  18. ^ Tacke et al. 2015, p. 135.
  19. ^ "Zenith Aircraft Company". zenithair.net. Retrieved 30 March 2019.
  20. ^ Batchelor 2021, p. 62.
  21. ^ Calderwood, Dave. "'Electric sky jeep' from Old Buckenham company". Flyer, 11 May 2021. Retrieved 29 June 2021.
  22. ^ O'Connor, Kate (30 January 2023). "Electric Zenith CH 750 Completes First Flight". AVweb. Archived from the original on 31 January 2023. Retrieved 31 January 2023.
  23. ^ "Airscene: Aero India" 2001, pp. 254–255.
  24. ^ Lambert 1993, p. 41.
  25. ^ "STOL CH 701 Performance and specifications." Zenith Aircraft. Retrieved: September 4, 2017.

Bibliography[edit]

  • "Airscene: Aero India." Air International, Volume 60, Issue 4, April 2001. ISSN 0306-5634.
  • Batchelor, Tom. "The electric sky jeep". Air International, Vol. 101, No. 1, July 2021. pp. 62–66. ISSN 0306-5634.
  • Bayerl, Robby, Martin Berkemeier, et al. World Directory of Leisure Aviation 2011-12. Lancaster UK: WDLA UK, 2011. ISSN 1368-485X.
  • Kitplanes Staff. "2008 Kit Aircraft Directory." Kitplanes, Volume 24, Number 12, December 2007. ISSN 0891-1851.
  • Lambert, Mark, ed. Jane's All The World's Aircraft 1993-94. Coulsdon, UK: Jane's Data Division, 1993. ISBN 0-7106-1066-1.
  • Tacke, Willi, Marino Boric, et al. "World Directory of Light Aviation 2015-16." Flying Pages Europe SARL, 2015. ISSN 1368-485X.
  • Vandermeullen, Richard: "2011 Kit Aircraft Buyer's Guide." Kitplanes, Volume 28, Number 12, December 2011. ISSN 0891-1851

External links[edit]

Wikimedia Commons has media related to Zenith STOL CH 701 and Zenair STOL CH750.
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