EC135
Joined: Nov 2008
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From: UK
Sid,
I believe if you mix liquid and air in a sealed container, then the air will come out of the liquid quicker than in an open container. Reason being is the sealed container will create a partial vacuum above the surface of the liquid, helping to suck the air bubbles back out.
I believe if you mix liquid and air in a sealed container, then the air will come out of the liquid quicker than in an open container. Reason being is the sealed container will create a partial vacuum above the surface of the liquid, helping to suck the air bubbles back out.
Last edited by chopjock; 27th January 2014 at 10:54.
Joined: Dec 2008
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From: N/A
Good work SS - the pprune R&D dept is on top form !
underfunded maybe? perhaps sponsorship from Tesco is in order?
(JetA1: FSII not neccessarily, although i think shell used to include it as standard)
Whilst the R&D Dept is in full swing perhaps you could look into the variability of Electro Static properties wrt capacitative fuel probes?
and
Temperature Probes for Low Fuel warning - can it be fooled under some temperature conditions?
So many complications to assess ! Keep up the good work.
(and SS cut the "really" (haha) jibe eh?)
underfunded maybe? perhaps sponsorship from Tesco is in order?
(JetA1: FSII not neccessarily, although i think shell used to include it as standard)
Whilst the R&D Dept is in full swing perhaps you could look into the variability of Electro Static properties wrt capacitative fuel probes?
and
Temperature Probes for Low Fuel warning - can it be fooled under some temperature conditions?
So many complications to assess ! Keep up the good work.
(and SS cut the "really" (haha) jibe eh?)
Purveyor of Egg Liqueur to Lucifer
Joined: Nov 2002
Aviation Qualifications: ATPL
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From: Alles über die platz
Chop;
Well, wasnt it a good thing that I had to take my hand off the top in order to see what was happening to the liquid? I didnt have a lid as it was somewhere in the depths of the bin and I wasnt going to rummage around for it, and had to use my latex gloved hand to cover the top while shaking.
Therefore my test proves AnFI's theory, and your loyal support of it, to be flawed
Sid,
I believe if you mix liquid and air in a sealed container, then the air will come out of the liquid quicker than in an open container. Reason being is the sealed container will create a partial vacuum above the surface of the liquid, helping to suck the air bubbles back out.
I believe if you mix liquid and air in a sealed container, then the air will come out of the liquid quicker than in an open container. Reason being is the sealed container will create a partial vacuum above the surface of the liquid, helping to suck the air bubbles back out.
Therefore my test proves AnFI's theory, and your loyal support of it, to be flawed
Purveyor of Egg Liqueur to Lucifer
Joined: Nov 2002
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From: Alles über die platz
AnFI 
Best you don't go into Battersea on a cold day then;
http://www.londonheliport.co.uk/down...mixed_AL48.pdf
JetA1: FSII not neccessarily, although i think shell used to include it as standard
http://www.londonheliport.co.uk/down...mixed_AL48.pdf
Joined: Dec 2008
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From: N/A
jibe? "used to" - as in don't anymore, something wrong with that answer?
btw when is 'no-go cold' now without FSII? -40C at alt? or subzeroC fuel temp?
Glad we can rule out that cause then.
Pls let us know when the R&D dept can rule out those other two possible issues.
(and do you intend to publish a paper on the anti foaming qualities of milk additive
)
There's an answer in here somewhere and the wild speculation dept (PPRUNE) should be able to stumble accross the answer before the AAIB, shirley?
Pulled wrong FCL? LASER blinded? Medical (Heart Attack)?
(talking about Glasgow but on this thread for some odd reason)
btw when is 'no-go cold' now without FSII? -40C at alt? or subzeroC fuel temp?
Glad we can rule out that cause then.
Pls let us know when the R&D dept can rule out those other two possible issues.
(and do you intend to publish a paper on the anti foaming qualities of milk additive
)There's an answer in here somewhere and the wild speculation dept (PPRUNE) should be able to stumble accross the answer before the AAIB, shirley?
Pulled wrong FCL? LASER blinded? Medical (Heart Attack)?
(talking about Glasgow but on this thread for some odd reason
)
Purveyor of Egg Liqueur to Lucifer
Joined: Nov 2002
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From: Alles über die platz
AnFI
Remaining on the 135 theme, you still haven't told us your experience on the 135, however there's probably no need to now, as with comments such as;
... it's perfectly clear 
According to the 135 FLM, no anti-icing additives are required down to minus 30 degC fuel temperature.
At fuel temp range -30 down to -35 an anti-icing additive is required.
Remaining on the 135 theme, you still haven't told us your experience on the 135, however there's probably no need to now, as with comments such as;
There's an answer in here somewhere and the wild speculation dept (PPRUNE) should be able to stumble accross the answer before the AAIB, shirley?
Pulled wrong FCL? LASER blinded? Medical (Heart Attack)?
Pulled wrong FCL? LASER blinded? Medical (Heart Attack)?
btw when is 'no-go cold' now without FSII? -40C at alt? or subzeroC fuel temp?
At fuel temp range -30 down to -35 an anti-icing additive is required.
Joined: Dec 2008
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From: N/A
I have more ground school on 135 fuel systems now than anyone doing a type rating. I feel confident that I have a 75% chance of passing the one(?) multi choice question on fuel systems for this type contained in the exam.
This I feel would easily equip a pilot with the ability to analyse clearly the thousands of lines of detail contained herein. What's the point? It's all fine as long as there's enough fuel and everything working correctly.
If you can turn off the wrong transfer pump it will happen, afterall it's only 50-50 between answer c and answer d
How are the other experiments coming along?
This I feel would easily equip a pilot with the ability to analyse clearly the thousands of lines of detail contained herein. What's the point? It's all fine as long as there's enough fuel and everything working correctly.
If you can turn off the wrong transfer pump it will happen, afterall it's only 50-50 between answer c and answer d
How are the other experiments coming along?
Purveyor of Egg Liqueur to Lucifer
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From: Alles über die platz
AnFI
The thing you've missed about the thousands of posts about the fuel system is that despite being told very clearly how it works from very early on, others, just like yourself, have brought their own version of the system onto the thread. If you were doing a type rating, you would be told the information contained within that one post, and all the others would be ignored. Now, is that simple enough for you?
"If you can turn off the wrong transfer pump it will happen,"
..and if you do turn off the wrong transfer pump, the system, after telling you which one to turn off in the first place, will tell you that you have turned off the wrong one!
Besides, a pilot turning off the wrong pump, isn't a fault within the fuel system now is it!
Is that simple enough for you?
You're coming along nicely, well done 
The thing you've missed about the thousands of posts about the fuel system is that despite being told very clearly how it works from very early on, others, just like yourself, have brought their own version of the system onto the thread. If you were doing a type rating, you would be told the information contained within that one post, and all the others would be ignored. Now, is that simple enough for you?
"If you can turn off the wrong transfer pump it will happen,"
..and if you do turn off the wrong transfer pump, the system, after telling you which one to turn off in the first place, will tell you that you have turned off the wrong one!
Besides, a pilot turning off the wrong pump, isn't a fault within the fuel system now is it!
Is that simple enough for you?
How are the other experiments coming along?
Joined: Aug 2001
Posts: 696
Likes: 10
From: Shropshire
Brought across from the Glasgow thread:
Hi Sid
The triangle is letting you know that the yaw SEMA(s) are running out of authority. If this was to have happened in pitch or roll, this signal would go, via the autopilot, to the trim motors attached to the cyclic - the cyclic then moves allowing the actuators to reposition towards a more central position. Since the yaw pedals don't have trim motors, you take the place of them.
So, assuming the yaw SEMA finds itself towards the limit of applying right pedal, the triangle will appear to the right so, you apply right pedal - as you apply the right pedal, the SEMA can wind back towards the centre of its range; however, there has been no actual input to the fenestron.
This is why you can often get the triangle asking for right pedal and the ball asking for left pedal. I usually clear the triangle first and then the ball, mainly because I usually fly out of balance anyway :-)
Cheers
TeeS
Come on Sid, I'm sure that you know the PFD triangle has nothing to do with balance?
Cheers
TeeS
Mmm, it goes away when I 'step on it', I get reminded about it on OPC's and it does feel nicer when it's not on the screen.
You're not confusing it with the track triangle on the ND are you TeeS?
Cheers
TeeS
Mmm, it goes away when I 'step on it', I get reminded about it on OPC's and it does feel nicer when it's not on the screen.
You're not confusing it with the track triangle on the ND are you TeeS?
The triangle is letting you know that the yaw SEMA(s) are running out of authority. If this was to have happened in pitch or roll, this signal would go, via the autopilot, to the trim motors attached to the cyclic - the cyclic then moves allowing the actuators to reposition towards a more central position. Since the yaw pedals don't have trim motors, you take the place of them.
So, assuming the yaw SEMA finds itself towards the limit of applying right pedal, the triangle will appear to the right so, you apply right pedal - as you apply the right pedal, the SEMA can wind back towards the centre of its range; however, there has been no actual input to the fenestron.
This is why you can often get the triangle asking for right pedal and the ball asking for left pedal. I usually clear the triangle first and then the ball, mainly because I usually fly out of balance anyway :-)
Cheers
TeeS
Purveyor of Egg Liqueur to Lucifer
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From: Alles über die platz
Lol,
I looked up what mauve should be and found;
"Mauve is more grey and more blue than a pale tint of magenta would be."
Then I found;
"Magenta is not found in the visible spectrum of light. Rather, it is physiologically and psychologically perceived as the mixture of red and blue light, with the absence of green."
So in a nutshell, the 135 already has or might have a Mauve-ish bit of string fitted, just that we can't see it
I looked up what mauve should be and found;
"Mauve is more grey and more blue than a pale tint of magenta would be."
Then I found;
"Magenta is not found in the visible spectrum of light. Rather, it is physiologically and psychologically perceived as the mixture of red and blue light, with the absence of green."
So in a nutshell, the 135 already has or might have a Mauve-ish bit of string fitted, just that we can't see it
Joined: Feb 2006
Posts: 3,534
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From: The Alps
20th Anniversary of first flight
I do recall it was the 20th Anniversary of the EC135 the other day? Don't think it was on Valentines Day lol but the day after?
Anyone celebrated it? Any special color scheme by Airbus Helicopters?
Cheers
Anyone celebrated it? Any special color scheme by Airbus Helicopters?
Cheers
