View Full Version : overspeed safran turbomeca arriel 2b or 2b1
fly4mo
6th Jul 2022, 18:59
who has any experience of engine overspeed arriel 2B or 2B1?
staticsource
6th Jul 2022, 21:59
In flight or on start??
gipsymagpie
7th Jul 2022, 05:32
Loads of times in a simulator. It's never been in an incident report to my knowledge unlike the equivalent P&W engine
fly4mo
7th Jul 2022, 08:06
in start procedure, pilote could stop rpm at 480
haihio
7th Jul 2022, 12:20
in start procedure, pilote could stop rpm at 480
480 N2 and NR ?
😱
Nubian
7th Jul 2022, 20:48
who has any experience of engine overspeed arriel 2B or 2B1?
Probably not many…..
Sounds like a complete rebuild.
would be interessting to know how this happened…
gipsymagpie
7th Jul 2022, 20:56
Loads of times in a simulator. It's never been in an incident report to my knowledge unlike the equivalent P&W engine
Actually, come to think of it there have been several overspeed events during the preference injector check. What do you want to know?
staticsource
8th Jul 2022, 06:21
There’s a gotcha on the B3 2B where the fadec can overspeed the engine on start, never had it on the 2b1 tbh
gipsymagpie
8th Jul 2022, 06:22
Actually, come to think of it there have been several overspeed events during the preference injector check. What do you want to know?
Scrub that - they were on Arrius not Arriel.
haihio
8th Jul 2022, 09:10
AS350B3 Rolls Over: Pilot Caught Out By Engine Control Differences - Aerossurance (http://aerossurance.com/helicopters/as350b3-rolls-engine-controls/)