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Generating Power and Performance

The Arriel 2 experience Reduces operating cost t hrough optimized a ccelerat ion

modes.

Clea n bu rning w ith sign ifica ntly low NOx levels.

The e ng ine cont rol techno logy, EECU, add s no extra

cycle consumpt ion.

Best w eight-to -pow er ratio in i ts cat ego ry.

M issions EMS, SAR, Police, VIP, a erial w ork, corpo rat e,

off -shore liaison.

Engine Electronic Control Unit experience Improves overall safe ty, red uces pilot w ork loa d.

Indicat es operationa l paramet ers.

Drives eng ine life sa fe ly to its TBO limit.

Signa ls ma intenance actions on auto ma tic eng ine

overrun display.

The 2B/2C versions a re con tro lled by a sing le cha nn el

EECU with integrat ed ma nual b ack-up.

Dual channel Engine Electronic Control Unit The Arriel 2B1, 2C1 an d 2C2 use du a l cha nne l EECUs

associat ed w ith aut oma tic third channel ba ck-up.

Turbomeca is the f irst eng ine man ufa cturer to of fer

dua l chann el EECUs fo r th e civil market.

Since its launch in 1977, 28 versions of theArriel family have been developed to meetdifferent airframe and mission requirements.The Arriel 2 powers the EC 130, AS 365N3,EC 155 and the US Coast Guards prototypeHH 65 Dolphin.

The Arriel fa m ily 25 yea rs of o utsta nding reliability

19 Millions operating hours

6,000 eng ines delivered

Arriel : 640 - 9 44 shp

AS 350 B3 powered by one Arriel 2B

EC 130 powered by one Arriel 2B1

AS 365 N3 powered by tw o Arr ie l 2C

EC 155 powered by two Arr ie l 2C1 / 2C2

Arrius480 - 7 16 shp

Ardiden993 shp

mech. power

TM 333900 - 1 ,10 0 shp

M TR 3901,280 - 1 ,600 shp

Maki la1,800 - 2 ,100 shp

RTM 3222,100 - 2 ,650 shp

EC 130AS 365 N3

EC 155

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Compressor stag e 1 axial , 1 centrifuga l

Single-stage gas generator tur-bine Single crystal blades

Reduction gear Designed a nd t ested

w ith high torq ue

Pow er output shaft 6,000 rpm

Single-stage

power turbine Economical

Best h igh

temperature

alloysM ainta ining close contactw ith Arr iel 2 operators worldw ide Turbom eca-approved Repa ir &Overha ul cente rs

24/7 Turb o me ca ho tline

Compared t o t he Arriel 1 eq uipped w ith a 2-sta ge ga s generat or turbine, the Arriel 2 draw s the benef i ts of t he

latest t echnology d evelopment s: the sing le sta ge turbine w ith single crysta l blad es bring s 30% more po w er,

w ith no increa se in w eight , to th e Arriel 2C2 on t he EC 155 B1.

MTOW EC 155, Arriel 2C2: 4,850 kg /10,692 lb (ISA sea leve l).

OEI rat ings can b e used up t o 10 minutes cumula ted time in conting ency (OEI 2min.) fo r all va ria nts; a nd f or th e

Arriel 2C2 15-sec. cumulat ed fo r the super conting ency (30 sec.) with out a ny shop visit req uired .

Technical Characteristics ( ISA, sea level, kW /shp)ARRIEL 2 B / 2 B1 2 C 2C1 2C2

Applica t ion AS 3 50 B3 / EC 13 0 AS 36 5 N 3 EC 15 5 EC 15 5

One Engine Inoperative (OEI) kW /shp kW /shp kW /shp kW /shp

OEI 30 sec. 718 /963 718 /963 786 /1,054

OEI 2 min . 646 /866 646 /866 713 /956

OEI co nt inuo us 626 /839 626 /839 686 /919

All engines operative (AEO)

Ta ke-o ff 632 /848 626 /839 626 /839 704 /944

Ma x. cont inuous 544 /730 581 /779 581 /779 636 /853

Combust ion chamber Centrifug al injection w heel

Low NOx levels

Turbomeca is the worlds leading manufacturer of small-to-medium

gas turbine engines. Turbom eca d esig ns, develops, ma nufa ctures

an d supports helicopter en gines for opera tors across the w orld.

Uniq ue in a viat ion history, helicopter eng ines have b een the com-

pa nys core business fo r over 50 years. Tod a y, nea rly ha lf of the

w orlds civil he licopt ers a re Turbo me ca-pow ered .

This document is intended f or gene ra l informat ion purposes only. Turbomeca reserves the r ight to modify

the product s and services descr ibed in this document without pr ior not ice .

Turbom eca, 64 51 1 Bordes, FranceTel. + 33 (0)5 59 12 52 74 - Fax + 33 (0)5 59 12 51 39

www.turbomeca.com