The ATR 42 is a twin-turboprop, short-haul regional airliner built in France and Italy by ATR (Aerei da Trasporto Regionale or Avions de transport régional). ATR and some Airbus models have their final assembly in Toulouse, and share resources and technology. The name "42" comes from the aircraft's standard seating, which varies from 40 to 52. The aircraft was the basis for the ATR 72.
| Powerplants |
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ATR-42-320 - Two flat rated 1417kW (1900shp) PW-121s.
ATR-42-500 - Two PW-127Es derated to 1610kW (2160shp) driving six blade RatierFagiec/Hamilton Standard props.
| Performance |
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ATR-42-320 - Same as ATR-42-300 except max cruising speed 498km/h (269kt).
ATR-42-500 - Cruising speed 563km/h (304kt). Max range 1850km (1000nm).
| Weights |
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ATR-42-320 - Operating empty 10,290kg (22,685lb), max takeoff as per 42-300.
ATR-42-500 - Operating empty 11,250kg (24,802lb), max takeoff 18,600kg (41,005lb).
| Dimensions |
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| Capacity |
|
ATR-42 Cargo - Nine containers with a 4000kg payload.
| Production |
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| Type |
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| History |
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The first of two ATR-42 prototypes flew for the first time on August 16 1984. Italian and French authorities granted certification in September 1985 and the first ATR-42 entered airline service on December 9 1985.
The initial ATR-42-300 was the standard production version of the ATR-42 family until 1996 and features greater payload range and a higher takeoff weight than the prototypes. The similar ATR-42-320 (also withdrawn in 1996) differed in having the more powerful PW-121 engines for better hot and high performance, while the ATR-42 Cargo is a quick change freight/passenger version of the 42-300.
The ATR-42-500 is the first significantly improved version of the aircraft and features a revised interior, more powerful PW-127Es for a substantially increased cruising speed (565km/h/305kt) driving six blade propellers, a 1850km (1000nm) maximum range, the EFIS cockpit, elevators and rudders of the stretched ATR-72 (described separately), plus new brakes and landing gear and strengthened wing and fuselage for higher weights. The first ATR-42-500 delivery was in October 1995.
ATR was part of Aero International (Regional), the regional airliner consortium established in January 1996 to incorporate ATR, Avro and Jetstream. AI(R) handled sales, marketing and support for both the ATRs, plus the Avro RJs and the Jetstream 41, until its disbandment in mid 1998 when ATR regained its independence.
In
mid-2000, ATR launched a freighter conversion program for both the -42
and -72, involving installing a forward freight door and modifying the
cabin for freight. The ATR-42 Freighter can carry a 5.8 tonne payload.
DHL Aviation Africa was the launch customer with two converted
ATR-42-300s redelivered in September and December, 2000.
Variants
There are six major variants of the ATR 42.
ATR 42–200
The −200 was the original ATR 42 prototype and only a few were built for testing purposes. It was powered by Pratt & Whitney Canada PW120 engines rated at 1,800 shp (1,300 kW).
ATR 42–300
The −300 was the standard production version. This model was manufactured until 1996. It was powered by Pratt & Whitney Canada PW120 engines rated at 2,000 shp (1,500 kW).
ATR 42–320
The −320 was an improved version of the −300 powered by PW121 engines (2100 shp). It was designed to have better performance especially in hot and high conditions.
ATR 42–400
The ATR 42−400 is an upgraded version of the −320 using six-bladed
propellers on otherwise identical PW121 engines. Three ATR 42−400 were
delivered to the Government of Italy as the ATR 42 "Surveyor" version.
The only two civilian ATR 42-400 produced (msn 487 & 491) were
delivered to CSA Czech Airlines in 1995/1996 as an interim upgrade prior
to delivery of -500s. In 2006 these two aircraft were sold to Conviasa.
ATR 42–500
The ATR 42-500 is the current production version. The first delivery
was in October 1995. It is a completely new design with many new
improvements for performance and passenger comfort. It has new engines,
new propellers, a newly designed cabin and increased weight capacity. It
has six-bladed propellers turned by PW127E
engines rated at 2,400 shp (1,800 kW) for improved hot and high
performance and greatly increased cruise speed. The engines are flat
rated for +45C. Propellers are completely electrically controlled and
are made from composite material. It also has an increased maximum
takeoff weight, allowing for more cargo and greater range (up to
1,500 nm). Due to the six-bladed propellers and better insulation, it
has a much reduced noise level inside the cabin with new "elegance"
style cabin. The newest version have CATII capability and dual Honeywell
HT1000 FMS installation.
ATR 42–600
On Tuesday 2 October 2007, ATR CEO Stéphane Mayer announced the
launch of the new −600 series aircraft at a press conference held in Washington, D.C.
The new ATR 42–600 and ATR 72–600 will feature the latest
technological enhancements while building upon the well-known advantages
of the current aircraft, namely its high efficiency, proven dispatch
reliability, low fuel burn and operating cost. It will include the new PW127M
as standard engine (new engines provide 5% additional thermodynamic
power at takeoff, thus improving performance on short runways, in hot
weather and on high altitude; the incorporation of the "boost function"
enables use of this additional power as needed, only when called for by
the takeoff conditions), Glass Cockpit flight deck featuring five wide LCD screens that will replace the current EFIS
(Electronic Flight Instrument System). In addition, a Multi-Purpose
Computer (MPC) will further enhance flight safety and operational
capabilities. The new avionics, to be supplied by Thales, will also provide CAT III and RNP capabilities. It will also include the new lighter and more comfortable seats and larger overhead baggage bins.
Using a temporary test registration F-WWLY the prototype ATR 42–600 first flew on 4 March 2010. The first aircraft was delivered to Precision Air in November 2012.
NOTE: According to the ATR42 & 72 EASA Type Certificate Data Sheet TCDS A.084, Iss 3, 17-10-2012 ),
"ATR 42-600" is the manufacturer's marketing designation of ATR 42-500
aircraft model with the NAS (New Avionic Suite, or 'Glass Cockpit')
modification installed. The "ATR 42-600" marketing designation is not
recognised by EASA as any new certified aircraft model or variant, and
must not be used on ATR certified/approved documentation, where only
"Mod 5948", "ATR 42-500 with Mod 5948", "ATR 42-500 fitted with NAS", or
ATR 42-500 "600 version" must be indicated.
Other versions
- Cargo Variant
Bulk (Tube Versions) and ULD Freighter (Large Cargo Door). An STC exists to convert all ATR 42 variants to all-cargo transport aircraft. FedEx, Aviavilsa, UPS, and DHL are major operators of the type.
- ATR Surveyor
The ATR 42 "Surveyor" is a maritime patrol version of the −400,
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