FADEC engine control

[Len-ticular]

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?

[md 600 driver]

I think it maybe rotorway which may surprise some

[SilsoeSid]

A good way to start your instructor technical pilot briefing might be to say that no helicopter has FADEC and explain why not

[lowfat]

While some 365ns3,ec155 and 139 have partial FADEC with a manual backup throttle.I thought the 92 was full FADEC.

[hueyracer]

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

[OvertHawk]

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

[turboshaft]

S-76B (1984) - PT6B-36

[HLCPTR]

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.

[tottigol]

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.

[HLCPTR]

Exactly.

S76B is not FADEC since it has manual back-up.

I do not know of any PT-6 with FADEC but welcome information on one which is.

[obnoxio f*ckwit]

Originally Posted by SilsoeSid

A good way to start your instructor technical pilot briefing might be to say that no helicopter has FADEC and explain why not

Why don't you give us the reason rather than veiled hints, so we can all benefit from your unbounded wisdom?

[Sevarg]

What about the Westland Wessex or Whirlwind for EECU?

[whoknows idont]

Originally Posted by lowfat

...partial FADEC...

Wouldn't that be PADEC?

[HLCPTR]

PADEC....

Pilot Actuated Destructive Engine Control.

[tottigol]

I know a few of those.

[SilsoeSid]

Originally Posted by obnoxio f*ckwit

Why don't you give us the reason rather than veiled hints, so we can all benefit from your unbounded wisdom?

... or you could read the three posts prior to your contribution

[lowfat]

think the EC175 is a full fadec pt6e

so im at about 3 helicopters with proper fadec... 155 s92 and ec175.

so im thinking the 155 is first true Fadec Helicopter

[tottigol]

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?

[casper64]

H145 Dual Channel full FADEC as well... no manual controls.

[SilsoeSid]

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?