I was perhaps not as clear on that subject as I should have been in this discussion. To be clear. The Arriel 1 engines utilized engine oil to produce the torque indication. So all helicopters that have the Arriel 1 engine you would loose torque if you loose oil pressure. AS350B, AS350B1, AS350BA, AS350B2, AS350B2 VEMD. In the Arriel 2 equipped helicopters you would not loose torque, AS350B3, AS350B3 2B1, AS350B3e, EC130B4, EC130T2.
Good morning sir , thanks for this presentation , if we have loss oil pressure , at the first we must confirm that with oil temperature because it's my be the indicaor sensor defect. Best regards. Mus
I think you may have misunderstood me. What I was trying to say is that temperature and pressure are two different issues. When analyzing pressure issues the temperature is Not an indicator of loss of pressure. Depending on your model you have a pressure light, a pressure gauge and if you are operating a arriel 1 engine equipped helicopter then you also have the torque gauge. You know that the pressure light system in working at the beginning of the flight because the light was illuminated and at start you saw an appropriate rise in pressure on gauge. Now if either of those indicators fail then since we know the other was working properly then its maybe a erroneous, but doesnt hurt to land. If both show no pressure you have lost oil flow.
@@EUROSAFETYTRAINING thanks sir for the feedback wich is really important , For me , i gave you example for Arrius 1A1. I like challenges in order to enrich our theory knowledges, because as we are technicien we must think to person inside and below hélicoptère. Below mean people. Best regards. Mus
As oil temp increases in an engine its pressure decreases.Everyone knows about the force needed to pump a fixed volume of oil at _20C as opposed to pumping the same volume at +90.Oil temp is never an indicator of oil pressure unless the flow rate is increased or decreased releative to temperature.
@@EUROSAFETYTRAINING what I'm saying is that it's not a good practice to directly equate good oil temperature as being good oil pressure.Low oil pressure could be due to a number of things,low oil level,loss of oil,high oil temperature,low pump pressure or a combination of those things.If a pilot gets a low pressure warning,oil temperature is only one of many possibilities.
Ok, I think you are saying you dont agree with my thoughts. Correct? Im sure I never said good temperature is an indication of good pressure. I am saying pressure most often is a separate issue indicated by the gauge and light. Why would low oil level create low oil pressure? Why would loss of oil create low pressure? Why would low oil pressure create high oil temperature? I am saying if oil pressure goes to zero (not to many reasons it would just be low, above red line, there is usually pressure or not) temperature will not go up.
@@eugeneoreilly9356, Good morning sir , in this video our eurosafety friends is not wrong , he want to give as his experience , so , I think it's the best and only way to increase the flight safety and security . For the loss oil pressure I'm agree with you , you analyse logic and good troubleshooting , but thre are lot of things to resolve the problem or to identify the problem sources, like pressure sensor defect , my be also indicator.......etc . The challenge and communication are the best way to increase the flight safety level that's why we try to accept the others ideas . Best regards. Mus
I was not paying attention to the detail was just absorbed in it beauty !!
Very Helpful
Glen...just to clarify ...assuming the ENG P light is on, the secondary indication on all models would be low TRQ ?
I was perhaps not as clear on that subject as I should have been in this discussion. To be clear. The Arriel 1 engines utilized engine oil to produce the torque indication. So all helicopters that have the Arriel 1 engine you would loose torque if you loose oil pressure. AS350B, AS350B1, AS350BA, AS350B2, AS350B2 VEMD. In the Arriel 2 equipped helicopters you would not loose torque, AS350B3, AS350B3 2B1, AS350B3e, EC130B4, EC130T2.
Good morning sir , thanks for this presentation , if we have loss oil pressure , at the first we must confirm that with oil temperature because it's my be the indicaor sensor defect.
Best regards.
Mus
I think you may have misunderstood me. What I was trying to say is that temperature and pressure are two different issues. When analyzing pressure issues the temperature is Not an indicator of loss of pressure. Depending on your model you have a pressure light, a pressure gauge and if you are operating a arriel 1 engine equipped helicopter then you also have the torque gauge. You know that the pressure light system in working at the beginning of the flight because the light was illuminated and at start you saw an appropriate rise in pressure on gauge. Now if either of those indicators fail then since we know the other was working properly then its maybe a erroneous, but doesnt hurt to land. If both show no pressure you have lost oil flow.
@@EUROSAFETYTRAINING thanks sir for the feedback wich is really important ,
For me , i gave you example for Arrius 1A1.
I like challenges in order to enrich our theory knowledges, because as we are technicien we must think to person inside and below hélicoptère. Below mean people.
Best regards.
Mus
awesome
As oil temp increases in an engine its pressure decreases.Everyone knows about the force needed to pump a fixed volume of oil at _20C as opposed to pumping the same volume at +90.Oil temp is never an indicator of oil pressure unless the flow rate is increased or decreased releative to temperature.
I cant tell... are you agreeing or disagreeing with me?
@@EUROSAFETYTRAINING what I'm saying is that it's not a good practice to directly equate good oil temperature as being good oil pressure.Low oil pressure could be due to a number of things,low oil level,loss of oil,high oil temperature,low pump pressure or a combination of those things.If a pilot gets a low pressure warning,oil temperature is only one of many possibilities.
Ok, I think you are saying you dont agree with my thoughts. Correct? Im sure I never said good temperature is an indication of good pressure. I am saying pressure most often is a separate issue indicated by the gauge and light. Why would low oil level create low oil pressure? Why would loss of oil create low pressure? Why would low oil pressure create high oil temperature? I am saying if oil pressure goes to zero (not to many reasons it would just be low, above red line, there is usually pressure or not) temperature will not go up.
@@eugeneoreilly9356, Good morning sir , in this video our eurosafety friends is not wrong , he want to give as his experience , so , I think it's the best and only way to increase the flight safety and security .
For the loss oil pressure I'm agree with you , you analyse logic and good troubleshooting , but thre are lot of things to resolve the problem or to identify the problem sources, like pressure sensor defect , my be also indicator.......etc .
The challenge and communication are the best way to increase the flight safety level that's why we try to accept the others ideas .
Best regards.
Mus