EN­GINE DOMINANCE IN COMMERCIAL AVIATION

With over 13,000 large commercial engines in­stalled to­day, Pratt & Whitney pro­vides de­pend­able power to hun­dreds of air­lines and op­er­a­tors ev­ery day

SP's Airbuz - - Front Page - BY R. CHAN­DRAKANTH

CONNECTICUT-BASED UNITED TECH­NOLO­GIES COR­PO­RA­TION (UTC) has all the rea­sons to cel­e­brate the suc­cess of one of its com­pa­nies – Pratt & Whitney which has es­tab­lished it­self as one of the dom­i­nant play­ers in en­gine de­vel­op­ment in commercial aviation. Of all the UTC com­pa­nies, Pratt & Whitney has regis­tered en­cour­ag­ing prof­its for the quar­ter ended June 30, 2017 com­pared to the same pe­riod pre­vi­ous year, while oth­ers are lag­ging be­hind a bit.

Bring­ing to the mar­ket dis­rup­tive tech­nolo­gies, Pratt & Whitney is ex­pected to take a lead­ing role in commercial aviation. With over 13,000 large commercial engines in­stalled to­day, Pratt & Whitney pro­vides de­pend­able power to hun­dreds of air­lines and op­er­a­tors ev­ery day. Its fleet of commercial engines has logged more than one bil­lion hours of flight, pow­er­ing the nar­row- and wide-body air­craft that fly both pas­sen­gers and cargo around the world.

Not sit­ting on lau­rels, the com­pany is con­tin­u­ously in­no­vat­ing in power-plant de­sign, pi­o­neer­ing ef­fort. The com­pany’s patented tech­nol­ogy has changed the bound­aries of time and short­ened the dis­tance be­tween peo­ple and places. In the realm of commercial aviation, its en­gine of­fer­ings in­clude the best-sell­ing PurePower PW1000G; V2500; GP7200; PW4000-94; PW4000-100; PW4000-112; PW6000; JTD8 and JTD9.

PUREPOWER PW1000G EN­GINE. Pratt & Whitney’s PurePower PW1000G En­gine Fam­ily is not just a con­cept or a prom­ise for the fu­ture—it is re­al­ity. With 20 years of re­search and de­vel­op­ment, com­po­nent rig test­ing on all ma­jor mod­ules, ex­ten­sive ground and flight test­ing un­der­way, two engines in the fam­ily cer­ti­fied and the PW1100G-JM car­ry­ing pas­sen­gers on a daily ba­sis, the PurePower PW1000G en­gine with Geared Tur­bo­fan tech­nol­ogy de­liv­ers game-chang­ing re­duc­tions in — Fuel burn; en­vi­ron­men­tal emis­sions; en­gine noise; and op­er­at­ing costs.

In the PurePower PW1000G en­gine fam­ily, a state of the art gear sys­tem sep­a­rates the en­gine fan from the low pres­sure com­pres­sor and tur­bine, al­low­ing each of the mod­ules to op­er­ate at their op­ti­mum speeds. This en­ables the fan to ro­tate slower and while the low pres­sure com­pres­sor and tur­bine op­er­ate at a high speed, in­creas­ing en­gine ef­fi­ciency and de­liv­er­ing sig­nif­i­cantly lower fuel con­sump­tion, emis­sions and noise. This in­creased ef­fi­ciency also trans­lates to fewer en­gine stages and parts for lower weight and re­duced main­te­nance costs.

The PurePower PW1000G en­gine’s fan-drive gear sys­tem is just one com­po­nent of this next-gen­er­a­tion en­gine. The PurePower PW1000G en­gine also in­cor­po­rates ad­vances in aero­dy­nam­ics, light­weight ma­te­ri­als and other ma­jor tech­nol­ogy im­prove­ments in the high-pres­sure spool, low-pres­sure tur­bine, com­bus­tor, con­trols, en­gine health mon­i­tor­ing and more.

AD­VANCED TECH­NOLO­GIES. Pratt & Whitney has been ac­tively test­ing all key com­po­nents of the PurePower PW1000G en­gine fam­ily, with 16 tech­nol­ogy rigs run­ning around the world. The PW1100G-JM en­gine for Air­bus A320neo fam­ily of air­craft and the PW1500G en­gine for the Bom­bardier CSeries are cer­ti­fied. The PW1400G-JM en­gine for the Irkut MC-21 air­craft, the PW1200G en­gine for the Mit­subishi Re­gional Jet and the PW1900G for the Embraer E190-E2 are all in test­ing. The PW1100G-JM be­gan pow­er­ing rev­enue flights in Jan­uary 2016.

V2500 EN­GINE. The V2500 en­gine is de­signed and man­u­fac­tured by In­ter­na­tional Aero Engines, a global part­ner­ship of aerospace lead­ers in­clud­ing Pratt & Whitney, Ja­panese Aero En­gine Cor­po­ra­tion and MTU Aero Engines. In­ter­na­tional Aero Engines brings ad­van­tages in tech­ni­cal ex­cel­lence and man­u­fac­tur­ing ex­per­tise, with a rep­u­ta­tion of pro­duc­ing the en­gine of choice for the Air­bus A320 fam­ily.

V2500 engines of­fer the most ad­vanced tech­nolo­gies in the 22,000- to 33,000-pound thrust range with low­est over­all emis­sions in its class.

GP7200 EN­GINE. The GP7200 is de­rived from two of the most suc­cess­ful wide body en­gine pro­grammes in aviation his­tory. The En­gine Al­liance, a 50/50 joint ven­ture be­tween Gen­eral Elec­tric Aviation and Pratt & Whitney, was es­tab­lished in 1996 to de­velop, man­u­fac­ture, sell and sup­port a fam­ily of ad­vanced tech­nol­ogy engines for new high-ca­pac­ity, long-range air­craft. The re­sult is the GP7200, a twin spool ax­ial flow tur­bo­fan that de­liv­ers 70,000 pounds of thrust for the Air­bus A380.

The GP7200 is de­rived from the PW4000 and GE90 fam­i­lies. The en­gine ben­e­fits from each pro­grammes’ lat­est proven tech­nolo­gies and in­cor­po­rates lessons learned from more than 25 mil­lion flight hours of safe op­er­a­tion on both engines. The GP7200 en­tered ser­vice in 2008 with the world’s largest A380 fleet, Emi­rates. The first GP7200-pow­ered A380 was de­liv­ered to Air France in 2009. Since en­ter­ing ser­vice, the GP7200 has achieved a 99.9 per cent de­par­ture re­li­a­bil­ity rat­ing with­out ex­pe­ri­enc­ing a sin­gle in-flight shut­down.

PW4000-94 EN­GINE. The PW4000 94-inch fan en­gine is the first model in the PW4000 fam­ily of high-thrust engines. It cov­ers a range of 52,000 to 62,000 pounds of thrust and has five ma­jor air­craft ap­pli­ca­tions. Ap­proved for 180-minute Ex­tended-range Twin-en­gine Op­er­a­tions (ETOPS), the en­gine pro­vides air­lines with ex­cel­lent op­er­a­tional flex­i­bil­ity and high re­li­a­bil­ity. Ad­vanced, ser­vice-proven tech­nolo­gies, such as sin­gle-crys­tal su­per­al­loy ma­te­ri­als and its Full-Author­ity Dig­i­tal Elec­tronic Con­trol (FADEC), con­trib­ute to su­pe­rior fuel econ­omy and re­li­a­bil­ity. The en­gine’s ben­e­fits are fur­ther en­hanced by ex­cel­lent per­for­mance re­ten­tion, long on-wing times and low main­te­nance costs.

The PW4000’s noise and emis­sions pa­ram­e­ters are lower than lev­els re­quired for all cur­rent and an­tic­i­pated emis­sions and noise reg­u­la­tions. For a fur­ther re­duc­tion in emis­sions, Pratt & Whitney’s TALON (Tech­nol­ogy for Ad­vanced Low NOx) com­bus­tor tech­nol­ogy is now avail­able for the PW4000. Since en­ter­ing rev­enue ser­vice in 1987, Pratt & Whitney has de­liv­ered more than 2,500 PW400094” engines that have col­lec­tively logged more than 120 mil­lion de­pend­able flight hours on commercial air­craft around the world.

PW4000-100 EN­GINE. Pratt & Whitney has taken its suc­cess­ful PW4000 100-inch en­gine for the Air­bus A330 to new heights with the in­tro­duc­tion of the PW4170 Ad­van­tage70 pro­gramme. The Ad­van­tage70 is of­fered as a new en­gine and as an up­grade kit for ex­ist­ing engines. It de­liv­ers su­pe­rior en­gine per­for­mance, in­clud­ing a two per cent thrust in­crease, over one per cent re­duc­tion in fuel con­sump­tion, in­creased dura­bil­ity, and re­duced main­te­nance costs.

De­vel­oped specif­i­cally for the Air­bus A330 twin­jet and in­tro­duced in 1994, the PW4000 100-inch fan en­gine has thrust ca­pa­bil­ity from 64,500 to 70,000 pounds at take-off. The en­gine was the first in aviation his­tory to qual­ify for ETOPS prior to en­ter­ing ser­vice. It is now ap­proved for 180-minute ETOPS. Pratt & Whitney sup­plies A330 cus­tomers the en­tire propul­sion sys­tem – en­gine, na­celle, thrust re­verser and ac­ces­sories. This, along with su­perb ser­vice re­li­a­bil­ity, ex­cel­lent per­for­mance re­ten­tion and low cost of own­er­ship, make the PW4000 100-inch en­gine an out­stand­ing value.

PW4000-112 EN­GINE. The PW4000 112-inch en­gine, an ul­tra-high-thrust model cov­er­ing the 74,000 to 90,000 pound-

PRATT & WHITNEY’S AR­RAY OF ENGINES HAVE BENEFITTED AIR­LINES SUBSTANTIALLY AND THIS MAKES THE UTC COM­PANY A LEADER WHO UN­DER­STANDS THE NEEDS OF THE COMMERCIAL AVIATION BUSI­NESS WHICH IS HIGHLY VOLATILE, AF­FECTED BY FUEL PRICES AND OTHER FAC­TORS.

thrust class, is the re­li­a­bil­ity, ex­pe­ri­ence and ETOPS leader for the 777 air­craft, pro­vid­ing the best cus­tomer value. The en­gine’s ad­vanced, ser­vice-proven tech­nolo­gies in­clud­ing sin­gle-crys­tal su­per al­loy ma­te­ri­als, pow­dered metal disks, and FADEC, pro­vide ex­cel­lent op­er­a­tional per­for­mance and dura­bil­ity. Th­ese fea­tures con­trib­ute to the en­gine’s ex­cel­lent en­vi­ron­men­tal per­for­mance, which meets with mar­gin all cur­rent noise and emis­sions reg­u­la­tions.

The PW4000 112-inch en­gine re­tains the out­stand­ing ac­ces­si­bil­ity and com­po­nent mod­u­lar­ity of other PW4000 fam­ily mem­bers to re­duce main­te­nance time and cost. For trans­porta­bil­ity, the en­gine can be shipped in a 747F air­craft as a com­plete en­gine.

PW6000 EN­GINE. The PW6000 en­gine cov­ers the 18,000- to 24,000-pound thrust class and is tar­geted for 100-pas­sen­ger air­craft. The PW6000 is cur­rently of­fered on the Air­bus A318, which is part of the suc­cess­ful A320 air­craft fam­ily.

The PW6000 builds on proven tech­nol­ogy from other Pratt & Whitney ad­vanced en­gine pro­grammes to de­liver the low­est cost of own­er­ship for 100-pas­sen­ger air­craft op­er­a­tors. Pratt & Whitney has in­cor­po­rated tech­no­log­i­cal ad­vances in the PW6000 that en­able a re­duc­tion in parts count for lower ac­qui­si­tion cost as well as a re­duced main­te­nance cost. The PW6000 meets all cur­rent and an­tic­i­pated noise and en­vi­ron­men­tal reg­u­la­tions. For air­lines con­tem­plat­ing the fu­ture ac­qui­si­tion of new 100-pas­sen­ger air­craft, the PW6000 is an ex­cel­lent choice as it was specif­i­cally de­signed for high-cy­cle op­er­a­tion in the de­mand­ing short-haul air­craft mar­ket. The PW6000 meets the chal­lenges of low cost, clean, quiet, re­li­able, and durable power for air­line cus­tomers.

JT8D EN­GINE. Pratt & Whitney in­tro­duced the JT8D to commercial aviation in 1964 with the in­au­gu­ral flight of Boe­ing’s 727100 air­craft. The JT8D en­gine has proven it­self to be a highly durable and re­li­able en­gine, hav­ing com­pleted more than 673 mil­lion de­pend­able fly­ing hours since en­ter­ing ser­vice. Once deemed the work­horse of the in­dus­try, more than 14,750 JT8D engines have flown. To­day, there are 2,400 engines still in use.

Pratt & Whitney has de­vel­oped a new low-emis­sions com­bus­tion sys­tem, or E-Kit, that is FAR 25-cer­ti­fied to en­sure the JT8D200 en­gine stays cur­rent with en­vi­ron­men­tal reg­u­la­tions. The E-Kit re­duces JT8D-200 en­gine NOx emis­sions by 25 per cent and ex­ceeds all ICAO stan­dards for new pro­duc­tion engines.

JT9D EN­GINE. Pratt & Whitney’s JT9D en­gine opened a new era in commercial aviation: the high-by­pass-ra­tio en­gine to power wide-bod­ied air­craft. Since en­ter­ing ser­vice on the Boe­ing 747 air­craft in 1970, the JT9D en­gine has proven it­self to be the work­horse for early 747, 767, A300, A310 and DC-10 air­craft mod­els with more than 3,200 cu­mu­la­tive engines de­liv­ered.

The JT9D en­gine fam­ily con­sists of three dis­tinct se­ries. The JT9D-7 en­gine cov­ers the 46,300- to 50,000-pound-thrust range, and the JT9D-7Q se­ries has a 53,000 pound thrust rat­ing. Later mod­els, the -7R4 se­ries, cover the 48,000- to 56,000-poundthrust range. For JT9D-7R4 twin­jet in­stal­la­tions, the engines are ap­proved for 180-minute ETOPS.

Pratt & Whitney’s ar­ray of engines have benefitted air­lines substantially and this makes the UTC com­pany a leader who un­der­stands the needs of the commercial aviation busi­ness which is highly volatile, af­fected by fuel prices and other fac­tors.

Pratt & Whitney’s PurePower Geared Tur­bo­fan PW1900G en­gine will power the Embraer E190-E2 air­craft

Air­bus A380 air­craft, which is seen at the last year’s Farn­bor­ough Airshow, is pow­ered by has four GP7200 engines from En­gine Al­liance (EA), a joint ven­ture be­tween GE Aviation and Pratt & Whitney

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