Re: Here's one for you to analyze, Vern
Met-All to the rescue!
PW had some great ideas...like geared fan designs and hollow blades. Main bearings overheating burning up seals in the geared fan was the issue on the G500/600 engines (NEO A320 using a larger version of the exact same engine design).
Hollow fan blades, tho being lighter, tend to fail as all can see here. Lots of flexing going on in those fans. The 787 and 747-8 fans are really rad.. weird scimitar and blended tips. Big mothers too!
The customer fleet were aware that the GE's are much more reliable, which explains why the few aircraft delievered with PW are all that are affected.
I would ask why the Triple 7 engine group decided to add catalytic heaters to the nacelle, exterior to the cabin?...looking at this photo. Could be aerodynamics got in the fray and decided a hot air balloon effect might assist the climb rate?
I suspect some seat upholstery will need to be changed on tis aircraft as well.
From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Bruce Crain <jcrain2@...>
Sent: Sunday, February 21, 2021 9:15 PM
To: email@example.com <firstname.lastname@example.org>
Subject: Re: [Q-List] Here's one for you to analyze, Vern
I think they can polish it out. 😉
On Feb 21, 2021, at 6:49 PM, smeshno1@... wrote: