787 Question

[jerslice]

Check this shot with the equalizer on:
http://farm3.static.flickr.com/2725/4412519443_011cb1e67b_o.jpg

Note the exhaust that seems to be squirting out of a hole on the sides of the engine. Anyone have any idea what this is?

I noticed something coming out of roughly the same spot on the engines during the taxi tests...

[cancidas]

since the airplane is all-electric the engine might be producing too much power for taxi and takeoff than what would normally be required. in the airplanes we've come to know to this day, a lot of power is robbed from the engines by the bleeds to operate the packs and anti-icing.

that's my guess, i haven't seen the pic as i'm stuck at work at the moment.

[lijk604]

Jeremy, which engines are on that 787? The G5 uses the Rolls Royce engines, and I noticed that on the ground while taxiing. So I asked a mechanic about that and they said Rolls Royce knows that there will be a bit of overfill in the engine oil, so instead of it burning inside the engine, this is a vent from the oil catch area. Keeps the engines cleaner on the inside, and serves it's purpose. He said to worry if you don't see some smoke/vapor there.

[Matt Molnar]

Those are RR engines. First GEnx 787 hasn't flown yet.

[jerslice]

Those are RR engines. First GEnx 787 hasn't flown yet

That is correct. I think just 5 & 6 have them.

[NLovis]

Yea that flow is normal on R&R engines. 757 R&R engines do that. 777 R&R same thing. Same goes for the 747 R$R and the A340 R&R engines. Its a vapor vent for the burnt oil.