To be pedantic and quote PWC - "single channel Full Authority Digital Electronic Control System" comprising Fuel Management Module (FMM) on the engine and Electronic Engine Control mounted on the airframe. To call it an EEC would be describing only half of what is involved. It is a FADEC right up to the point when it isn't.

I was somewhat confused to read that myself. It either has full authority or it doesn’t, and the 139 doesn’t. The pilot has the ability to manually manipulate the ECLs, either via the beep trims or the ECLs themselves..

And neither does the EC135P, AW109E and S and most but not all PW200 series powered aircraft as it's virtually identical.

You know it's not FADEC when the ITT rockets on a hot start and only you can prevent it exceeding limits.

At the extreme right of the most forward row of circuit breakers on the main overhead CB panel, is a 5-Amp CB labeled “FADEC GSE”. What does this CB protect? Can’t find reference to it in any manual available to us.

FADEC GSE = Ground Service Equipment.
Power for the interface connectors while connected to PWC DPHM (Diagnostic Prognostic and Health Management) software and then subsequent analysis with GBSLite or FAST (Flight Data Acquisition, Storage and Transmission).
The interface connector modules requirements probably exceed the output capabilities of USB-A.

Ha! USB!

Not even close, this works on RS422 via a serial converter (like Bill Gates used when Microsoft was still in his garage). P&W needed to update their DHPM software recently because no-one was making the serial converter anymore!

The rest of the aircraft works on a 2Base10 ethernet system (2 wire) which hasn't been made by anyone else but Honeywell in 40 years!

Thanks RVDT and rrekn!

Single channel means there is no secondary channel or automatic backup system like on the EC155 if I remember well.

By the way, have you saw the picture of the latest AW139 proto, I-AWII? As the engines seem a bit different, may be Leonardo will finally integrate dual channel fadec on the 139.

Is anyone familiar with the differences between the AW139 MK-II and the current production model?

Leonardo have been very cagey about it, but looking at the photos, the differences you can notice are:

1. New nose profile, which looks very similar to the AW169, this hints at a charge from Honeywell to Collins avionics as the Collins system uses the more traditional ARINC box architecture rather than the Honeywell MAU and hence takes up more space, hence the need for the new nose.
2. New engine inlet, which could be a new engine such as the PT6C-67E or a PW100 series varient.
3. New tailboom as shown by the flow visualisation strings.

Be interesting to see what they end up with.

Interesting observations for sure. I would assume an increased payload is also on the cards.

Not necessarily, unless the empty weight is lower. LH won't want to get too close to the 189 weight. No point in having 2 models in the same weight class.

Ahh sorry, that’s what I meant. An increased payload due to a lower EW while still at a 7t MTOW.

Interesting that they were talking about that ten years ago, so quite likely.

about this, the 139 has an ITT limiter but, when does it limit the ITT or what is it’s function?

I put this to some senior Leonardo people at an event recently. The senior people were suitably non commital as you would expect from a listed company. The rest of their sales team were..... less inhibited.
Based on the more junior team members the plan is for:

• More composite to try and reduce the amount of corrosion issues
• More aligned maintenance schedules (like AH have done with the H175/ H160)
• More future proof/ cheaper/ in house avionics
• Strangely power was not mentioned, it's not really an underpowered aircraft at the moment to the best of my knowledge
• Unlikely an increase in MTOW, but possibly a little. If some of the aircraft can be made of composite, you do not need to go above 7T, the lighter EEW takes care of more payload anyway.

I assess it's still a little while away before it breaks cover, like AH's new H135.

Well, it's about time for new bits and kit.However, I'm much more interested in the h135 and that german cartoon character on the left door.It seems there trying to imply it's faster, and if it's as quick and smooth as the b429 that would be a significant improvement.

Nr 102 beyond 90Kt
 

Hi read your message, i think if pilot follows 5 Degree nose up as published take off profile , it never crossed 75-80 kt . So worrying about speed crossing 90kt with Nr 102 is most likely when pilots don't follow published flying technique.