Видео

Kg Fccff

Learn English and a difference between budget airline fool

Indigo took delivery of their very first CFM Leap-1A powered NEO in Sept. 2020. Aircraft in the video (VT-ITC) is Indigo's first A320Neo aircraft and is powered by PW1100G engines.

@@DnyaneshMankar Oh. K. Thnx for Info. That means it is the LEAP Rival, the PWGTF! PW1100G is also called as PWGTF. It's full form is - *P* for Pratt *W* for Whitney *G* for Geared *T* for Turbo *F* for Fan *PWGTF*

+bob lackey Even I was surprised how quiet the engines were. Indigo, which is known for it's short TAT would be dying to get the engine issues fixed. FYI: I shot this video standing just a few feet away from the APU exhaust of an Etihad 787-9 (Dreamliner). I like to think that the noise from the APU might have affected a bit.

+Dnyanesh Mankar Yes the engine was designed to burn 15 to 20 % less fuel, make less noise and produce less pollution in the atmosphere. This engine is suppose to be so quiet that many people living near an airport shouldn't notice it much. But large fleet air carriers want it as it should save them millions of dollars in fuel expense compared to current engines. All jet engines experience a little rotor bowing when cooling down but this engine is having more of that. I've read part of the problem is the tolerances are closer to get the performance promised. But the rubbing of parts due to uneven cooling was not expected and showed up during Airbus testing last fall. That pushed the program back several months causing delays. There is a competing engine from CFM called the Leap which does not have the geared turbofan but a traditional design with parts made of composites and higher tolerances and apparently it hasn't experience cooling issues in testing so far. I've read in a few places that it's not achieving the fuel savings promised but CFM claims it is meeting all goals. That engine goes into service later this year to compete against the engines in your fine video. Indigo has a huge Airbus A320neo order with Pratt and Whitney engines on the first batch. If Pratt fails to get the cooling issue fully resolved, then Indigo may switch to the Leap engine which would be bad news for Pratt who is hoping to capture a bigger piece of the A320neo market than CFM. As you probably know, on A320ceo (current engine option) the carrier chooses between CFM and IAE engines. CFM is 50 % GE in the U. S. and 50 % owned by a French company. IAE is a partnership between Pratt & Whitney of the U. S. and German and Japanese companies with Pratt owing the majority share. I think CFM has about 52 % of A320ceo sales.

+bob lackey Although the PW1100Gs (& CFM Leap 1-A) are designed to be fuel efficient & make less noise, it's being said that the A320neo won't outperform the A320ceo (with sharklets) in terms of performance (climb rate, high altitude cruising, etc). On the flipside, it should benefit the passengers & the communities living near the airport.

+Dnyanesh Mankar Thank you for that insight Dnyanesh. Do you think Indigo will have Leap engines on part of their big order?

+bob lackey IMO, Indigo went ahead with PW1100G just to secure their lead and Indigo being frugal as it is, has already assigned its two A320neos (VT-ITC & VT-ITD) to DEL-HYD & DEL-BLR routes respectively (as of now). I believe that their Neos will mostly ply on routes having flying time of 2 hours and above for the very obvious reasons. If Pratt & Whitney manages to fix the issues of the PW1100G on time, it's unlikely that Indigo would switch to CFM's Leap 1A. Time will tell.