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benj111
This is bigger but less powerful than its predecessor. Is it a higher bypass engine, sort of like a turbo prop hybrid type thing?

What's the limiting factor re size? This seems an obvious thing to do to increase efficiency?

ggcdn
I'm a structural engineer, so when I see forces I like to compare them to common forces I design for in buildings.

That engine produces 115,000 lb of thrust. If I take typical rebar, fy=60ksi, so I will need about 1.916in2, which is about 2 #9 bars.

Two engines per plane, so I could hold back the 777 at full power with 4 #9 rebars. Not bad!

pohl
The article says 105,000lb.
ggcdn
You're right, it was the GE-90 that produced 115k. Rest assured, however, that the quantity of #9 rebars remains unchanged.
thatoneuser
So if you secured 4 of these rebar perpendicular to the direction of the plane and tied a strong rope from plane to rebar, the result would be the plane couldn’t move and the rebar wouldn’t break or bend?
ggcdn
No, I assumed the rebar is orientated as the 'strong rope'.

If the rebar were positioned as you say, they would yield/bend quite easily.

velco
Rocket engines aren't considered jet engines ???
woodandsteel
Like many terms in the English language, the word "jet" has more than one meaning. In the context of flight above the surface of the Earth, it refers to an oxygen-breathing device.