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-   -   EC225 (https://www.pprune.org/rotorheads/191379-ec225.html)

EESDL 30th July 2005 10:13

Great looking aircraft.
Had a fairly close look over it last week whilst down at Bristows being 'beasted' by their Training School in prep for IRT next week.
Impressive bit of mmf plugged in between the tail boom and cabin!
From what I can recall, no one seemed too fussed about the incident - taxiing sops might need to be amended.
V Impressive cockpit - a quantum improvement for the 'office'. No matter how hard I looked - could not find the pie heater though!
Thanks guys, see you Tuesday.

Wizzard 30th July 2005 13:12

EESDL,

Third screen from the left, thers's a little catch on the side: in there you'll find the microwave.

No more cold bacon butties:O

Wiz

NickLappos 30th July 2005 14:27

Surely not ground resonance, possibly an autopilot mode that makes it shake on the ground (sensor issue? loose wire?)
Were it ground resonance, the cure takes much engineering time, were it a maintenance issue to the AP (cleanly stopped when the AP is turned off), the cure is sure and the aircraft moves on.

Rumors feed on the absence of facts, and assume the worst.

EESDL 30th July 2005 19:58

Nick
Only the uninformed said that it may have been Ground Resonance........It is a rumour network!
The Bristow boys and girls contribute to this forum so I thought they would like the opportunity to quell this particular rumour.
The French Army have been using the aircraft without such a problem for quite a while now..............

HughMartin 30th July 2005 22:00

But did JC's champagne survive??

simfly 31st July 2005 09:05

The problem is something to do with the collective trim when in/near the fully down position, I'm sure someone will be able to explain in more detail. A/C starts to basically bounce up and down, and obviously the first time it happened it caused a few hearts to beat a bit faster..... Saw pilots giving it a shot the other day and thought the thing was gonna hit it's tail off the ground! I'm told by one of the pilots that the situation can be avoided if known about, and Eurocopter are looking at a fix.

cyclic 31st July 2005 09:31

I think the collective trim feel trigger has to be kept pressed whilst on the ground to avoid an oscillation starting until a fix is found.

MaxNg 1st August 2005 07:12

Is there any truth about the crew recieving head injuries, whispers are that one recieved 12 stitches, if this is true it raises some very interesting safety issues, When you look around the cockpit of the Puma you suddenly realise what is supposed to protect you would most likely injure you.

Like others have said,I hope that this is fixable and I look forwards to flying it soon.

However if they have just adapted a military cocpit for civil ops with no thought for crew protection during turbulance, resonance,disturbance from controlled flight then sometime down the line someone's going to get hurt, and it might not just be the crew at the front!!!

Whilst wearing a helmet would be a simple fix for such cockpit de- lethalisation, I and many others would'nt relish the thought of wearing one for the amount of hours that we currently fly. There maybe some other answer that would afford the same protection.

ATB

MaxNg

Geoffersincornwall 1st August 2005 11:07

big enough
 
Had a fly of the 225 a couple of weeks back and at 6'4" I found no problems. Very impressive machine with lots of input from the pilot fraternity on layout and AP functionality just to get things right. Can't wait to find out how things work out in practice.

jbrereton 1st August 2005 12:47

Shaking all over
 
Had a similiar thing happen to me on the Lynx when it first appeared. Turned out to be a CAC problem. Scary the first time it happened everything was a complete blur.

Hilife 1st August 2005 14:27

Some twenty or so years ago we had a CH47 that used to buck like a bronco all over the sky when the AFCS was selected on. Names were pulled out of a hat – from the juniors that is – for flight test crews and the appropriate dress was faded jeans, a chequered shirt and a Stetson. Boy did she used to go for it; a man has to pay good money to get a ride like that these days.

There were only two natural reactions to this problem whilst on board for the first time, you either laughed in fear or you shat yourself - and I don't recall seeing anybody laughing.

It took a while to resolve, but it my memory serves me correctly it turned out to be a loose earth strap on the AFCS stowage rack.

SASless 1st August 2005 16:00

Hilife....was that tail number 034 at Phu Loi?

She would jump slap off the ground and then imitate a bucking horse until you pulled it off the ground and turned the SAS off. Throwing the red cover down on the SAS switch was just like opening the gate at the Rodeo. If you engaged it at a hover....she just bumped a touch and settled right down.

Early Chinooks had a real nasty Thrust Lever Bounce (Collective Bounce).....that was caused by weak magnetic brakes. A properly placed knee against the lever cured it.

Hilife 1st August 2005 16:54

I’m afraid not SASless, she was one of Her Majesty’s finest assigned to the 240th Vertical Pursuit Ship School at RAF Odiham in England.

I think I knew a Phu Loi once but I do not recall seeing 034 tattooed on her arse, but then again it was dark and very late.

212man 1st August 2005 22:20

Had a look at a 225 FLM today. Loved the after take off checks; very short, but not forgetting ' Pilot arm rests............As Required'

:ok:

Ned-Air2Air 1st August 2005 22:50

Pardon the ignorance but is there a whole lot of difference between the L2 and the 225, if so what are they.

Thanks

Ned

Hippolite 2nd August 2005 10:38

Ned

The EC225 has the Makila 2A1 engine rather than the 1A2 of the L2. The 225 has FADEC with dual channel and as a backup it will mirror the good engine if both channels fail which of course will never happen according to EC.

The 225 has a 5 bladed main rotor for increased speed and reduced vibration...which is true, it is fast and smooth. The L2 only has 4 blades.

The EC has the Avionic Nouvelle cockpit while the L2 has a mix of glass flight instruments and analog engine instruments. The 225 cockpit is the best available in terms of integration and presentation. Its the best available on the market today, similar to the EC155 cockpit.

The airframe is the same as the L2 although I think the 225 has slightly more fuel capacity and sponson tanks as standard fit.

HH:cool:

Wizzard 2nd August 2005 19:34

"The L2 only has 4 blades"

That's all we need, thank you.

;)

212man 2nd August 2005 23:37

"The L2 only has 4 blades"


Yeah, like it has for the last 14 years. But hey, what's a blade between friends?

Hippolite 3rd August 2005 03:09

Thanks for the "corrections" Wizzard and 212 Man

I am truly humbled.

Anything substantive to add to Ned's request?

No...well shut up then.

HH

:cool:

212man 3rd August 2005 07:25

Hippolite,
that wasn't a dig at you (in fact it wasn't a dig at all, it was simply an off the cuff response to wizzard's comment)

I agree about the cockpit, though a significant improvement on the 155.

Wizzard 3rd August 2005 18:15

HH

Just one further thing to add: It don't half bounce when you forget to press the collective trigger!

ps Cheer up.

Wiz;)

rjsquirrel 21st August 2005 14:19

What ever happened about that EC-225 incident?
 
A while back, someone posted a thread on a severe ground bounce or resonance or something on the new Bristow EC-225? Any report on injuries? Was that ever fixed?

BHPS 21st August 2005 16:55

No damage to the aircraft although a slight injury to the person sitting in the jump seat. I suspect that there was also some washing done that night!

The aircraft is now flying regularly from Aberdeen.

NorthSeaTiger 21st August 2005 19:53

I see they now have 2 EC225's at ABZ are they flying commercially or just training at the moment, every time I see it go past I think it's 365 with the noise it makes !!.

NorthSeaTiger 14th September 2005 08:40

Ec225
 
Hi,
Just wandering does the EC225 have a barbecue plate ?

HeliComparator 14th September 2005 10:40

Yes, though I think its made of steel rather than the titanium of the L & L2

HC

NorthSeaTiger 14th September 2005 11:18

Is the cabin door jettison system still as bad as ever ?

HeliComparator 14th September 2005 19:13

Jealousy is so unbecoming........

Jetboxer 14th September 2005 19:20

Does it leak when flying in rain / IMC, like the rest of the puma variants!

Hopefully, by now, Eurocopter have spoken to Citroen and got some tips on how to seal their windscreens, and keep the vehicle's occupants dry!

Galapagos 14th September 2005 20:57

Have you ever flown a machine that doesn't leank... I haven't! From new to old, piston to heavy... all the same.

:{

Brilliant Stuff 15th September 2005 10:01

For those who don't fly the only real Helicopter:D , what is a BBQ plate?

nimbostratus 15th September 2005 10:25

barbecue plate
 
It is (or so I'm told), the 'corrugated' titanium plate which attaches the base of the MRGB to the transmission deck. You'll find it somewhere between the race cart and the dog kennel; I hope that helps.

Sailor Vee 15th September 2005 10:57

Not corrugated but perforated titanium plate, ever trying barbecueing on corrugated iron??:8 :confused:

Plus, NO, I've never flown a heli that didn't leak, if they don't leak coming from the factory, the vibration soon changes that!!:E

NorthSeaTiger 15th September 2005 12:11

It's a large one piece titanium plate with "fingers" machined out of it. attatched to airframe and mgb, takes torsional loads and damps vibration.

Brilliant Stuff 15th September 2005 12:50

Cheers for that.

Mikila1A 15th September 2005 14:49

BBQ Plate
 
ok, finally got the plate pic up for you,

the gearbox sits on the plate, the plate in turn takes up the torisonial loads of the rotor system, the proper name is actually...Flexible mounting plate.


http://www.caaviation.com/forums/upl..._30_179174.jpg

BTW, this is the plate off a 332L model, not a 225. 225.....yummy!!!!!:O :O

Brilliant Stuff 16th September 2005 08:19

Thank you for the picture.

What do you use the bullets for?:confused:
Left on the AOG box.

Woolf 16th September 2005 08:33

.... you gotta get that steak somehow! :p


Batteries???

NorthSeaTiger 16th September 2005 08:49

They are not "Bullets" but spacers for the bolts which go between the airframe and BBQ plate.

Brilliant Stuff 16th September 2005 09:28

they look like "Bullets" from here. Would have been a good rumour to spread.:p

Cheers for all the explanations.

Now I will go back to my medium Helicopter.


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