Guerpont Autoplum

{{Short description|French ultralight aircraft}} {{Use dmy dates|date=January 2022}} {{Use British English|date=January 2022}}  {{Infobox aircraft | name = Autoplum | logo = | logo_size = | image = | alt = | caption = | long_caption = | other_names = | aircraft_type = [[Ultralight aircraft]] | aim = | outcome = | related = | national_origin = [[France]] | manufacturer = Roland Mangeard (plans) | design_group = | designer = Maurice Guerpont | builder = | issuer = | status = Plans available (2015) | owners = | primary_user = | more_users = | service = | major_applications = | proposals = | prototypes = | number_built = | 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 = | variants = | developed_into = | preservation = | fate = | predecessors = | successors = | concluded = }} The '''Guerpont Autoplum''' is a French [[ultralight aircraft]] that was designed by Maurice Guerpont. Plans are supplied by one of the first builders of the type, Roland Mangeard of [[Pulnoy]]. The aircraft is supplied as plans only for [[Homebuilt aircraft|amateur construction]].<ref name="WDLA11">Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 57. 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 60. Flying Pages Europe SARL, 2015. {{ISSN|1368-485X}}</ref>

==Design and development== The aircraft 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 an [[aircraft canopy]] with gull winged doors for access, fixed [[conventional landing gear]] and a single engine in [[tractor configuration]].<ref name="WDLA11" /><ref name="WDLA15"/>

The aircraft is made from wood, with its flying surfaces covered in [[Aircraft dope|doped]] [[aircraft fabric]]. The Autoplum's [[tailplane]] is 50% the area of the main wing, which provides a wide [[Center of gravity of an aircraft|centre of gravity]] range and a high degree of pitch dampening. Its {{convert|8.60|m|ft|1|abbr=on}} span wing, has an area of {{convert|17.50|m2|sqft|abbr=on}}. Earlier examples were fitted with a {{convert|51|hp|kW|0|abbr=on}} [[Rotax 462]] [[two-stroke]] engine, with later ones using the {{convert|64|hp|kW|0|abbr=on}} [[Rotax 582]] two-stroke powerplant or other engines.<ref name="WDLA11" /><ref name="WDLA15"/>

==Specifications (Autoplum) == {{Aircraft specs |ref=Bayerl and Tacke<ref name="WDLA11" /><ref name="WDLA15"/> |prime units?=met  |genhide=

|crew=one |capacity=one passenger |length m= |length ft= |length in= |length note= |span m=8.60 |span ft= |span in= |span note= |height m= |height ft= |height in= |height note= |wing area sqm=17.50 |wing area sqft= |wing area note= |aspect ratio= |airfoil= |empty weight kg=230 |empty weight lb= |empty weight note= |gross weight kg=420 |gross weight lb= |gross weight note= |fuel capacity={{convert|50|L}} |more general=  |eng1 number=1 |eng1 name=[[Rotax 462]] |eng1 type=two cylinder, air-cooled, [[two stroke]] [[aircraft engine]] |eng1 kw= |eng1 hp=52

|perfhide=

|max speed kmh=150 |max speed mph= |max speed kts= |max speed note= |cruise speed kmh=140 |cruise speed mph= |cruise speed kts= |cruise speed note= |stall speed kmh=50 |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=4 |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=24.0 |wing loading lb/sqft= |wing loading note= |power/mass= |thrust/weight= |more performance= |avionics= }}

==References== {{reflist}}

==External links== *[http://www.flying-directory.com/photos/big/10018fix1.jpg Photo of a Guerpont Autoplum]

[[Category:2000s French ultralight aircraft]] [[Category:Homebuilt aircraft]] [[Category:Single-engined tractor aircraft]]