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would a 3 engine plane survive in this modern aviation world?

Anonymous Sun 16 Apr 2023 05:54:32 No.1904316 View View Reply Original Report

Quoted By: >>1904330 >>1904338 >>1904370 >>1904419

Im curious,i like 3 engine planes,like the DC-10,MD-11,Boeing 727,etc....

are they doomed to be relics of the past or do they have a chance?

Anonymous

Anonymous Sun 16 Apr 2023 08:57:54 No.1904330 Report

Quoted By: >>1904419

>>1904316
In an age of composites and highly efficient powerful engines, what does a trijet really bring the table? Sure it’s less engines than a quad but what does it really need the third for anyways? Long haul tri jets were born out of weird regulatory optimization. I wouldn’t predict any such confluence of circumstance driving them to existence again. At one point the Boom Overture *was* supposed to be a trijet but the newest design calls for a quad engine layout. It’s still in development so who knows if it will see the light of day though.

Anonymous

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Anonymous Sun 16 Apr 2023 09:46:17 No.1904338 Report

Quoted By:

>>1904316
No. The only reason we don't see one engine large passenger jets is safety regulations. More engines = more operating cost. Twin jets are more economical while still having that second engine for situations when you really need it. ETOPS killed the tri-jet and that's a good thing. You just don't need 3 engines any more.

Anonymous

Anonymous Sun 16 Apr 2023 13:33:41 No.1904370 Report

Quoted By:

>>1904316
>are they doomed to be relics of the past
Yes.
>or do they have a chance?
Not when ETOPS 180/207 exists.

Anonymous

Anonymous Sun 16 Apr 2023 17:53:40 No.1904419 Report

Quoted By: >>1904474

>>1904316
Go to former USSR, there are still a lot of Yak-40 and Yak-42 trijets in service. Additionally, Tu-154 aircraft are in charter operations.
>>1904330
I honestly think that Boom is pie in the sky. They have been touting their quiet supersonic claims for many years now, but we have yet to see the XB-1 fly. I see the future trending more towards aircraft like the Otto Celera, if Otto's claims are substantiated, there will be a breakthrough in aircraft efficiency, meaning that airliners might only need a single engine like a CFM-56 or IAE V2500 in order to reach cruising speed and altitude with the same or greater capacity as before, all while consuming less fuel.

Anonymous

Anonymous Sun 16 Apr 2023 21:34:04 No.1904474 Report

Quoted By: >>1904502

>>1904419
> meaning that airliners might only need a single engine like a CFM-56 or IAE V2500 in order to reach cruising speed and altitude with the same or greater capacity as before, all while consuming less fuel.
There will never be a single engine transport category aircraft. Turbofans are one of the most reliable things on the planet, but you still need ETOPS.

Anonymous

Anonymous Sun 16 Apr 2023 23:09:07 No.1904502 Report

Quoted By:

>>1904474
You are right in this regard, so excuse my oversight. I therefore propose that two engines similar to the PW500 common in executive aircraft could power a type closer in size and capacity to an ATR-72-600 with more efficiency than the ATR-72-600.

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