Flybe Engine Fire
Join Date: Apr 2008
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Airbus350s,
Dear sir, Q400s do 8-10 flights per day and other than the first flight in the morning, the oil temps in the left engine are nice and warm all day long. The PW150 is massively derated for sea level so it's a quite unstressed engine as these things go...Starting it late in the taxi is simply not an issue. It's only because there's a big prop attached that you notice anyway....
Good job by the crew who only get to practice this twice a year mostly...
Dear sir, Q400s do 8-10 flights per day and other than the first flight in the morning, the oil temps in the left engine are nice and warm all day long. The PW150 is massively derated for sea level so it's a quite unstressed engine as these things go...Starting it late in the taxi is simply not an issue. It's only because there's a big prop attached that you notice anyway....
Good job by the crew who only get to practice this twice a year mostly...
Join Date: Aug 2001
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Turkish
What about after landing? I've noticed the port engine is shut down more or less straight away as of fairly recently. Never flown the type so just curiosity. Any other turbine I've flown needs 3 mins stabilising before shutting down.
What about after landing? I've noticed the port engine is shut down more or less straight away as of fairly recently. Never flown the type so just curiosity. Any other turbine I've flown needs 3 mins stabilising before shutting down.
Join Date: Jun 1999
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Since FlyBe operate 40 odd DHC-8s and have been practising single engine taxi scores of times per day for years without problems, I fail to see why there's so much focus on this being the cause. There are plenty of other possibilities.
Join Date: Feb 2005
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3 minutes cooldown is fairly typical across several engine models of various sizes.
But in some cases, approach and landing at/near idle (i.e. less than full flaps) may be counted toward the 3 minutes requirement.
But in some cases, approach and landing at/near idle (i.e. less than full flaps) may be counted toward the 3 minutes requirement.
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Airbus350, silver and others,
There are prescribed oil temp limits which must be adhered to before takeoff, whether single engine or not.
Further as I recall on shut down the engine needs to have been in start/feather for 1 minute before bejng shut down.
On a cold day and first flight the engines can take some time to come up to the correct temp prior to flight. Other than that it is not a problem as the short turnarounds do not allow the engines to cool down that much.
After landing the engine is put into start feather for 1 min prior to shut down wheather on stand or during taxi in.
All engine manufacturers have their own procedures which should (and in in this case are) be followed. Your plane and procedures will be different and you should follow them.
GE do not follow RR etc.so do not presume that just because procedures do not follow your company sops they are wrong.
This is a non issue.
There are prescribed oil temp limits which must be adhered to before takeoff, whether single engine or not.
Further as I recall on shut down the engine needs to have been in start/feather for 1 minute before bejng shut down.
On a cold day and first flight the engines can take some time to come up to the correct temp prior to flight. Other than that it is not a problem as the short turnarounds do not allow the engines to cool down that much.
After landing the engine is put into start feather for 1 min prior to shut down wheather on stand or during taxi in.
All engine manufacturers have their own procedures which should (and in in this case are) be followed. Your plane and procedures will be different and you should follow them.
GE do not follow RR etc.so do not presume that just because procedures do not follow your company sops they are wrong.
This is a non issue.
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The only warm up period required for the PW150A is for take off when in icing conditions. If icing conditions aren't prevalent then there is no warm up period. This warm up period is to reach a certain temperature to ensure engine intake ice protection which uses oil as it's heat source. There is no warm up period required specifically for the engine. The only cool down period is what has already been stated - 30 seconds on selection of start/feather. There certainly is not a 3 minute cool down period or anything like 3 minutes as being cited by some. I hope this helps clear up a few myths being cited on here.
