Bushcaddy R-120

{{Short description|Canadian homebuilt light aircraft}} {{Use dmy dates|date=January 2022}} {{Use Canadian English|date=January 2022}}  {{Infobox aircraft | name = R-120 | logo = | logo_size = | image = CLASS Bush Caddy R120 C-GZCC 02.JPG | alt = | caption = CLASS R-120 BushCaddy | long_caption = | other_names = | aircraft_type = [[Kit aircraft]] | aim = | outcome = | related = | national_origin = [[Canada]] | manufacturer = [[Canadian Light Aircraft Sales and Service]]<br />[[Bushcaddy]] | design_group = | designer = | builder = | issuer = | status = In production | owners = | primary_user = | more_users = | service = | major_applications = | proposals = | prototypes = | number_built = 43 (December 2011) | construction_number = | civil_registration = | military_serial = | radio_code = | requirement = | aircraft_carried = | flights = | total_hours = | total_distance = | construction_date = | introduction = | retired = | first_flight = | initiated = | in_service = | last_flight = | expected = | developed_from = [[Bushcaddy R-80]] | variants = [[Bushcaddy L-160]] | developed_into = | preservation = | fate = | predecessors = | successors = | concluded = }} The '''Bushcaddy R-120''' is a Canadian [[kit aircraft]] produced by [[Canadian Light Aircraft Sales and Service]] (CLASS) of [[Montréal/Saint-Lazare Aerodrome|St. Lazare, Quebec]] and later [[Les Cedres, Quebec]] and now [[Bushcaddy]] of [[Lachute, Quebec]] and more recently [[Cornwall Regional Airport]] in [[Summerstown, Ontario]].<ref name="WDLA11">Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 35. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X</ref><ref name="KitplanesDec2011">Vandermeullen, Richard: ''2012 Kit Aircraft Buyer's Guide'', Kitplanes, Volume 28, Number 12, December 2011, page 47. Belvoir Publications. ISSN 0891-1851</ref><ref name="Specs">{{cite web|url = http://bushcaddy.com/?page_id=119|title = R-120 Two place|accessdate = 19 May 2012|last = Bushcaddy|year = 2012|archiveurl = https://web.archive.org/web/20120208210657/http://bushcaddy.com/?page_id=119|archivedate = 8 February 2012|url-status = dead}}</ref>

The R-120 is a development of the [[Bushcaddy R-80]] and is supplied as a kit for [[Homebuilt aircraft|amateur construction]].<ref name="WDLA11" /><ref name="KitplanesDec2011" /><ref name="Specs" />

==Design and development== The aircraft was designed to comply with the Canadian and United States amateur-built aircraft rules. It features a [[strut-braced]] [[high-wing]], a two-seats-in-[[side-by-side configuration]] enclosed cockpit, fixed [[tricycle landing gear]] or [[conventional landing gear]] and a single engine in [[tractor configuration]]. The R-120 is structurally strengthened over the R-80 to allow a higher gross weight and accept larger engines.<ref name="WDLA11" /><ref name="KitplanesDec2011" /><ref name="Specs" />

The aircraft is made from [[6061-T6 aluminum]] sheet over a cage of welded aluminum square 6061-T6 aluminum tube. The tail boom is conventional [[semi-monocoque]] construction. The non-tapered planform wings have 6061-T6 [[Rib (aircraft)|ribs]] and [[Spar (aviation)|spars]] and employ a [[NACA]] 4413 (mod) [[airfoil]]. The airfoil modification removes the undercamber on the bottom of the wing, which makes construction easier, without giving up low speed performance. The aircraft's structure uses [[2024-T3 aluminium]] for critical parts where extra strength is required, such as the spar, float and strut attachments as well as other critical components like the rudder horns. The R-120's structure is covered with 6061-T6 sheet of varying thicknesses. The wings are supported by conventional "V" struts. 6061-T6 is predominantly used for its lower cost and also its better corrosion resistance, since many R-120s are flown on floats. Its {{convert|32|ft|m|1|abbr=on}} span wing has an area of {{convert|168|sqft|m2|abbr=on}}. [[Flap (aircraft)|Flaps]] are optional.<ref name="WDLA11" /><ref name="KitplanesDec2011" /><ref name="Specs" /><ref name="Hunt">Hunt, Adam: ''Elegant Utility - Flying the CLASS R-80 BushCaddy'', Canadian Flight July 2005, page B-1. [[Canadian Owners and Pilots Association]].</ref>

Standard engines used on the R-120 include the {{convert|80|hp|kW|0|abbr=on}} [[Rotax 912UL]], the {{convert|100|hp|kW|0|abbr=on}} [[Rotax 912ULS]], the [[turbocharged]] {{convert|115|hp|kW|0|abbr=on}} [[Rotax 914]], the {{convert|100|hp|kW|0|abbr=on}} [[Continental O-200]], the {{convert|108|hp|kW|0|abbr=on}} [[Lycoming O-235]], the {{convert|120|hp|kW|0|abbr=on}} [[Jabiru 3300]] and other [[four-stroke]] powerplants. The aircraft can also be mounted on floats and skis. Controls include a central "Y" [[Centre stick|control stick]].<ref name="WDLA11" /><ref name="KitplanesDec2011" /><ref name="Specs" />

Construction time for the R-120 from the factory kit is 1,000 hours.<ref name="Specs" />

==Variants== [[File:CLASS Bush Caddy R120 C-GZCC 01.JPG|thumb|right|CLASS R-120 BushCaddy on wheels]] ;CLASS R-120 BushCaddy :Version produced by CLASS of [[Saint-Lazare, Quebec]]. Production was later moved to [[Les Cedres, Quebec]]. ;Bushcaddy R-120 :Current production version produced by Bushcaddy of Lachute, Quebec after buying the rights from CLASS in 2011.<ref name="Specs" />

==Specifications (R-120) == {{Aircraft specs |ref=KitPlanes and Bushcaddy<ref name="KitplanesDec2011" /><ref name="Specs" /> |prime units?=imp  |genhide=

|crew=one |capacity=one passenger |length m= |length ft=22 |length in=1 |length note= |span m= |span ft=32 |span in= |span note= |height m= |height ft= |height in= |height note= |wing area sqm= |wing area sqft=168 |wing area note= |aspect ratio= |airfoil=[[NACA]] 4413 (mod) |empty weight kg= |empty weight lb=832 |empty weight note= |gross weight kg= |gross weight lb=1500 |gross weight note=(1700 lbs (771kg) with factory approval) |fuel capacity={{convert|155|L}} |more general=  |eng1 number=1 |eng1 name=[[Rotax 912ULS]] |eng1 type=four cylinder, liquid and air-cooled, [[four stroke]] [[aircraft engine]] |eng1 kw= |eng1 hp=100

|perfhide=

|max speed kmh= |max speed mph= |max speed kts= |max speed note= |cruise speed kmh= |cruise speed mph=110 |cruise speed kts= |cruise speed note=at 75% power |stall speed kmh= |stall speed mph=34 |stall speed kts= |stall speed note= |never exceed speed kmh= |never exceed speed mph=130 |never exceed speed kts= |never exceed speed note= |range km= |range miles= |range nmi= |range note= |endurance= |ceiling m= |ceiling ft=16000 |ceiling note= |g limits=+5.7/-3.8 |roll rate= |glide ratio= |climb rate ms= |climb rate ftmin=800 |climb rate note= |time to altitude= |sink rate ms= |sink rate ftmin= |sink rate note= |lift to drag= |wing loading kg/m2= |wing loading lb/sqft=8.9 |wing loading note= |power/mass= |thrust/weight= |more performance= |avionics= }}

==References== {{reflist}}

==External links== {{Commons category|Bushcaddy R-120}} *[http://www.bushcaddy.com/model-r120.html Official website] {{Bushcaddy aircraft}} {{Uncertified aircraft developed in Canada}}

[[Category:1990s Canadian ultralight aircraft]] [[Category:Homebuilt aircraft]] [[Category:Light-sport aircraft]] [[Category:Single-engined tractor aircraft]]