Beaujon Enduro

{{Short description|American ultralight aircraft}} {{Use mdy dates|date=May 2022}} {{Use American English|date=May 2022}}  {{Infobox aircraft | name = Enduro | logo = | logo_size = | image = BJ-Enduro OpenVSP.png | alt = | caption = | long_caption = | other_names = | aircraft_type = [[Ultralight aircraft]] | aim = | outcome = | related = | national_origin = [[United States]] | manufacturer = [[Beaujon Aircraft]] | design_group = | designer = Herbert Beaujon | builder = | issuer = | status = Plans available | 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 = 1978 | retired = | first_flight = 1978 | initiated = | in_service = | last_flight = | expected = | developed_from = | variants = | developed_into = | preservation = | fate = | predecessors = | successors = | concluded = }}

The '''Beaujon Enduro''' is a single-seat, [[United States|American]] high-wing, [[pusher configuration]] [[ultralight aircraft]]. The Enduro was introduced in 1978 and remains available as plans from [[Beaujon Aircraft]] of [[Ardmore, Oklahoma]].<ref name="Cliche">Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page B-8. Cybair Limited Publishing, 2001. {{ISBN|0-9680628-1-4}}</ref><ref name="BeaujonHome">{{cite web|url = http://www.beaujonaircraft.com/|title = Beaujon Ultralights|accessdate = 2009-08-02|last = Beaujon|first = Herbert|authorlink = |date = n.d.}}</ref>

==Development==

The Enduro is an early ultralight design that was first developed before the United States ultralight category and its [[Ultralight aircraft (United States)|FAR 103 ''Ultralight Vehicles'']] rules were finalized, but it fits into the requirements including the category's maximum {{convert|254|lb|kg|0|abbr=on}} empty weight.<ref name="BeaujonEnduro">{{cite web|url = http://www.beaujonaircraft.com/enduroindex.html|title = BJ Enduro|accessdate = 2009-08-02|last = Beaujon|first = Herbert|date = n.d.|archive-url = https://web.archive.org/web/20100613142346/http://www.beaujonaircraft.com/enduroindex.html|archive-date = 2010-06-13|url-status = dead}}</ref>

With the originally specified {{convert|82|lb|kg|0|abbr=on}} [[Briggs & Stratton]] 401417, four-stroke, 656 cc, {{convert|16|hp|kW|0|abbr=on}} lawn mower powerplant the aircraft has an empty weight of {{convert|230|lb|kg|0|abbr=on}}. The engine burns only {{convert|1|USgal|L|0|abbr=on}} per hour giving an endurance of 5 hours on the specified {{convert|5|USgal|L|0|abbr=on}} of fuel, hence the aircraft's name.<ref name="BeaujonEnduro" />

Reviewer Andre Cliche says of Beaujon's designs that they are "beautifully simple".<ref name="Cliche" />

==Design== The Enduro's wing and tail structure include wooden aircraft-grade spruce spars with [[polystyrene]] foam ribs. The constant-chord, wooden-framed wing and the tail surfaces are covered with {{convert|1/32|in|mm|0|abbr=on}} [[Populus|poplar]] plywood. The wing is [[strut]]-braced.<ref name="BeaujonEnduro" />

The [[tricycle landing gear]] features a fixed tail skid just behind the cockpit, steel-sprung main-gear suspension and a nose skid. Like many pusher ultralight aircraft the Enduro sits on its tail skid when unoccupied and on its nose skid when a pilot is sitting in the seat. No brakes are specified in the design.<ref name="BeaujonEnduro" />

The controls are three-axis, with an overhead-mounted control column. The [[rudder]] and [[ailerons]] are designed to be interconnected and controlled via the control wheel.<ref name="BeaujonEnduro" />

The open frame fuselage consists of 6061T6 [[aluminum]] tubing and a single open pilot's seat. The powerplant is installed behind the pilot and above the {{convert|5|USgal|L|0|abbr=on}} fuel tank.<ref name="BeaujonEnduro" />

Beaujon Aircraft supplies plans for the Enduro as part of a package which includes plans for eight ultralight craft as well as a 31-page manual.<ref name="BeaujonHome" />

==Specifications (Enduro) ==

{{Aircraft specs |prime units? = imp |ref=Beaujon<ref name="BeaujonEnduro" /> |crew=one |capacity= |length ft= 16 |length in= 7 |length m=5.06 |span ft= 24 |span in= 6 |span m=7.47 |height ft=7 |height in=0 |height m=2.14 |wing area sqft= 102 |wing area sqm= 9.49 |airfoil=Rhodes St. Genese 32 |empty weight lb= 230 |empty weight kg= 104 |max takeoff weight lb= 436 |max takeoff weight kg= 197 |eng1 name=[[Briggs & Stratton]] 401417, four-stroke, 656 cc |eng1 type= fixed pitch |eng1 number=1 |eng1 hp= 16 |eng1 kw=12 |max speed mph= 65 |max speed kmh=105 |cruise speed mph= 55 |cruise speed kmh=89 |stall speed mph= 26 |stall speed kmh= 42 |range miles=250 |range km=405 |climb rate ftmin= 350 |climb rate ms= 1.7 |wing loading lb/sqft=4.2 |wing loading kg/m2=20.8 |power/mass=27.3 lb/hp (0.06 kW/kg) }} ==See also== {{aircontent |see also= |related= |similar aircraft= *[[Aero-Works Aerolite 103]] *[[Avid Champion]] *[[Chotia Gypsy]] *[[Fisher FP-101]] *[[Freebird I]] *[[ISON Airbike]] *[[Pterodactyl Ascender]] *[[Jean St-Germain Raz-Mut]] *[[Ultraflight Lazair]] |lists= }}

==References== {{reflist}}

==External links==  *[https://web.archive.org/web/20250122202628/http://www.beaujonaircraft.com/ Official website (archived)] *[http://www.shadowvision.com/enduro/SE-YFZ_79633.jpg Photo of a modified Enduro]

[[Category:Single-engined pusher aircraft]] [[Category:1970s United States ultralight aircraft]] [[Category:Aircraft first flown in 1978]]