Editing ATR 42 (section)

{{short description|Regional turboprop airliner family}}
{{Use dmy dates|date=September 2019}}
<!-- This article is a part of [[Wikipedia:WikiProject Aircraft]]. Please see [[Wikipedia:WikiProject Aircraft/page content]] for recommended layout. -->
{{Infobox aircraft
| name = ATR 42
| image = File:ATR 42-500 Hop! (HOP) F-GPYK - MSN 537 (10276128103).jpg
| caption = A [[HOP!]] ATR 42-500 on final approach
| more_users = [[Canadian North]]<br />[[Silver Airways]]
| type = [[Regional airliner#Turboprop regional aircraft|Turboprop Regional airliner]]
| national_origin = [[France]]/[[Italy]]
| manufacturer = [[ATR (aviation)|ATR]]
| designer = 
| first_flight = 16 August 1984
| introduction = 3 December 1985
| retired = 
| status = In service
| primary_user = [[FedEx Feeder]]
| produced = 1984–present
| number_built = 503<ref>{{cite web |url= https://rzjets.net/aircraft/?typeid=310 |title=ATR 42, ATR 72 Production list |access-date=2024-07-15}}</ref>
| unit cost = 42-600: $19.5 million (2012)<ref>{{cite web |url= http://www.airfinancejournal.com/Article/3160018/Aircraft-Profile-ATR-42-500.html |title= Aircraft Profile: ATR 42-500 |date= 15 November 2012 |publisher= Airfinance Journal }}</ref>
| program cost = $250 million (estimated, 1981 - ${{inflation|USD|250|1981|r=-1}} million today)<ref name=Flight19dec1981 />
| developed_into = [[ATR 52]] (unbuilt)<br/>[[ATR 72]]
| variants =
}}

The '''ATR 42''' is a [[regional airliner]] produced by Franco-Italian manufacturer [[ATR (aircraft manufacturer)|ATR]], with final assembly in [[Toulouse]], France.
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On 4 November 1981, the aircraft was launched with ATR, as a [[joint venture]] between French [[Aérospatiale]] (now part of [[Airbus]]) and [[Aeritalia]] (now [[Leonardo S.p.A.]]).
The ATR 42-300 performed its [[maiden flight]] on 16 August 1984 and [[type certification]] was granted during September 1985.
Launch customer [[Air Littoral]] operated its first revenue-earning flight in December of that year.

<!--design-->
The [[high-wing]] airliner is powered by two [[turboprop]] engines, [[Pratt & Whitney Canada PW120]]s.
The number "42" in its name is derived from the aircraft's original standard seating capacity of 42 passengers.
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Later variants are upgraded with new [[avionics]], a [[glass cockpit]], and newer engine versions.
The ATR 42 is the basis for the stretched [[ATR 72]], introduced in October 1989.