FADEC engine control
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FADEC engine control
I am having to compile an instructor technical pilot briefing and was wondering if anyone out knew what the first Helicopter type was that was fitted with a FADEC (or single channel EECU) engine control was?
Purveyor of Egg Liqueur to Lucifer
A good way to start your instructor technical pilot briefing might be to say that no helicopter has FADEC and explain why not
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Way back then in the 1990´s, Eurocopter brought out their EC135´s with FADEC...
Looks like R&R were the first to work on a prototype:
https://en.wikipedia.org/wiki/FADEC
Looks like R&R were the first to work on a prototype:
https://en.wikipedia.org/wiki/FADEC
Lowfat.
The EC155 has no manual throttles at all. It's FADEC with an engine switch - OFF / IDLE / FLY. No manual reversion. The only "backup" available is to use the FADEC from the other engine.
OH
The EC155 has no manual throttles at all. It's FADEC with an engine switch - OFF / IDLE / FLY. No manual reversion. The only "backup" available is to use the FADEC from the other engine.
OH
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FADEC is one of those functions which is commonly misunderstood. In spite of what some manufacturer advertising brochures seem to say, many supposedly FADEC-equipped helicopters are not, which leads to this misunderstanding.
Real FADEC means that there is no secondary (back-up) engine control such as throttle levers (ECLs) or twist grips. All engine control is automatic, including failure modes.
Basically, if it has a single-channel EECU (or equivalent) it must have back-up controls since the engine fuel flow can only be controlled by the pilot in the event of a automatic control malfunction.
Real FADEC means that there is no secondary (back-up) engine control such as throttle levers (ECLs) or twist grips. All engine control is automatic, including failure modes.
Basically, if it has a single-channel EECU (or equivalent) it must have back-up controls since the engine fuel flow can only be controlled by the pilot in the event of a automatic control malfunction.
Any engine control that has a reversion to manual or assisted manual is not completely FADEC.
Early Bell products were the 407 and the 430 with variants of the Allison (now RR) 250 (I believe the C-47 and C-40 respectively), they both had a reversion to fixed mode and via push button could be controlled via twist grip (single channel).
AW139 and AW119 use the PT-6, and are EEC rather than FADEC.
The AW189 with the T700 (or CT7) is fully dual channel FADEC.
Early Bell products were the 407 and the 430 with variants of the Allison (now RR) 250 (I believe the C-47 and C-40 respectively), they both had a reversion to fixed mode and via push button could be controlled via twist grip (single channel).
AW139 and AW119 use the PT-6, and are EEC rather than FADEC.
The AW189 with the T700 (or CT7) is fully dual channel FADEC.
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Purveyor of Egg Liqueur to Lucifer
Silso,
AW189, H175, S-92 are all two-channel full FADEC with no reversion to manual.
He read them and we explained the difference between single and dual channel FADEC control.
So, they do exist.
Now what's your explanation?
AW189, H175, S-92 are all two-channel full FADEC with no reversion to manual.
He read them and we explained the difference between single and dual channel FADEC control.
So, they do exist.
Now what's your explanation?
Purveyor of Egg Liqueur to Lucifer
That's fine totti thanks, clearly I've misunderstood the FA part of the system, especially looking at the failure side of things.
FADEC Fail, close down engine?
FADEC Fail, close down engine?