EC225
Joined: Aug 2004
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From: Aberdeen
We just do that onshore when rotors running picking up passengers etc. I think the slight worry would be that someone, one day, would take off from a rig with NrILS on. Less likely (for us with a long taxi to the runway), and less critical onshore.
Joined: Jan 2003
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From: In the Orient
Max TOT difference between engines
It is not stated in the Flight Manual but I would like to compare notes as to how much TOT difference between No 1 and No 2 eng is considered acceptable. Recently I flew an aircraft with a 30 C difference between both engines with N1 equal and Torque about half % difference. It is not pleasant as this reduces the power margin available for take off and landing .
Howcanwebeexpectedtoflylikeeagles
whensurroundedbyturkeys
Joined: Dec 2003
Posts: 202
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From: Scotland
Hi Gnow
Are both engines passing the engine power check? If so, then there is no problem and you will get the required OEI performance. In my experience, the TOTs are normally fairly close. I don't think I have seen more than 20degrees difference. You will get a DIFF PWR warning if the TOT difference reaches 80degrees bit I am sure the EPC would flag up an out of spec engine before that.
I suspect the maintenance manual may have a figure above which maintenance action is required but as a mere pilot I have no knowledge of it.
Are both engines passing the engine power check? If so, then there is no problem and you will get the required OEI performance. In my experience, the TOTs are normally fairly close. I don't think I have seen more than 20degrees difference. You will get a DIFF PWR warning if the TOT difference reaches 80degrees bit I am sure the EPC would flag up an out of spec engine before that.
I suspect the maintenance manual may have a figure above which maintenance action is required but as a mere pilot I have no knowledge of it.
Joined: Apr 2008
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From: scotland
I've seen TOT differences like this on G/runs and airtests post maintenance, usually traced to a P2.4 or P3 pipe not seated/sealing correctly or a P3 pipe gasket that's been damaged during installation.
Joined: Aug 2004
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From: Aberdeen
We did have an interesting one some years ago - power assurance check gave massive TOT margin on one engine, and it ran really cool in flight. However it transpired it was one of the 8 TOT probes not correctly bolted down so it was not in the hot gas flow (new engine from the factory!)
Joined: Nov 2009
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From: Somewhere along the ITCZ
EC225 type rating in the US
Gents, quick question: other than American Eurocopter Training Center and ERA Training Center is there anyone else providing EC225 Initial / Recurrent training in the States?
Interesting to notice that an Initial EC225 type rating conducted at Eurocopter Training Services in Marignane takes 23 hours of flight time (FFS + Flight Instruction including IFR extension + Checkride) whereas American Eurocopter quotes 28 hours (!) and ERA 15 hours (!!)
Interesting to notice that an Initial EC225 type rating conducted at Eurocopter Training Services in Marignane takes 23 hours of flight time (FFS + Flight Instruction including IFR extension + Checkride) whereas American Eurocopter quotes 28 hours (!) and ERA 15 hours (!!)
Joined: Aug 2004
Posts: 2,105
Likes: 50
From: Aberdeen
Can't answer your first para, but regarding the differences in flight times it is worth bearing in mind that Sim vs aircraft makes a big difference. In the aircraft, all the time you spend strapping in, starting up and shutting down doesn't count and since it can take 40 mins for a beginner to complete startup drills under instruction, you effectively get a lot of "free" training. In the sim the clock starts when you step into the box and stops when you exit, so it takes a lot more sim time than aircraft time to achieve the same thing. Plus of course in the Sim you can do a lot of stuff that you just can't do in the a/c.
I don't know if there are differences in the sim and aircraft proportions of the 3 courses you mention, but that is one factor that might explain the differences.
I don't know if there are differences in the sim and aircraft proportions of the 3 courses you mention, but that is one factor that might explain the differences.
Joined: Nov 2009
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From: Somewhere along the ITCZ
I hear you HC, point taken about Sim vs A/C
Well according to ETS website an Initial EC225 type rating consists of 18.5 hours in the Sim (IFR extension included), followed by 3 hours in the a/c & 1.5 hours checkride (In Sim presumably?)
The breakdown for American Eurocopter must be similar to ETS though it is not clear where the Sim portion is conducted (Presumably in either ABZ or MRS)
Since ERA has no EC225 Sim I would guess the 15 hours are a/c time?
Well according to ETS website an Initial EC225 type rating consists of 18.5 hours in the Sim (IFR extension included), followed by 3 hours in the a/c & 1.5 hours checkride (In Sim presumably?)
The breakdown for American Eurocopter must be similar to ETS though it is not clear where the Sim portion is conducted (Presumably in either ABZ or MRS)
Since ERA has no EC225 Sim I would guess the 15 hours are a/c time?
Joined: Aug 2001
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From: Cornwall
One day .....
....... regulators will wise-up and acknowledge that pilot training for certain complex types with so much built-in redundancy and complete system monitoring (HUMS etc) CANNOT be accomplished satisfactorily in the aircraft alone without a simulator contribution. I often come across customers who have virtually no emergencies training beyond touch drills. Not even autorotations. Not good!! 
G.
G.
Joined: Aug 2004
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From: Aberdeen
Geoffers, I quite agree. Imagine what it was like for us introducing the EC225 into service in mid 2005, with the first sim in the world being available late 2008. Of course at the time we didn't know what we didn't know about the aircraft. Apart from anything else, the Sim revealed the flaws in the RFM emergency procedures that we had previously had to take as gospel.
Last edited by HeliComparator; 13th November 2012 at 09:40.
Joined: Oct 1999
Aviation Qualifications: ATPL
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From: Den Haag
Imagine what it was like for us introducing the EC225 into service in mid 2005, with the first sim in the world being available late 2008
