Fuel does not give blue smoke. Preservation fluid is what causes that kind of smoke. If the engine is expected to sit for long periods unused then it would have preservation fluid pumped through all the fuel lines and components. At next start up this is pumped through the system and into the fuel nozzles, giving the smoke until Jet- A1 replaces it all. A normal startup with Jet-A1 will give, at most, just a short puff of fuel vapour at lightup.
The smoke occurs when the cool fuel is introduced into the combustion chambers thats being pressurized, and when it ignites, it would cause this effect because its igniting cool pressurized fuel...thats basically it. but if the engine has been sitting for a long time, the oil settles. when the engine is started after so long, it has to cycle the oil to lubricate the system, and in doing so, some of the oil gets burnt when the igniters go off.
Awesome, have been looking for a video that shows the wonderful sounds that the RB211-22b (L-1011-1/100 only with this engine) makes on startup. I miss that and you sure felt if you were in the terminal and heard it from a long ways off.
This engine is known for some smoke on startup, but the number 1 engine in the other video smoked so much because it had not been started up in 3 years.
I always liked the sound of the RB-211's starting, too. The growl was very distinctive--you could tell when one was starting anywhere on the concourse at the airport. Maybe someone can explain why the Rolls Royce engines have that distinct sound. As for the smoke, I don't know why...but I seem to recall it was pretty common.
This reminds me of seeing Gulf Air tristars starting up at Heathrow. I'd forgotten how good a Tristar sounds when it's starting up. Thanks for posting.
Fuel does not give blue smoke. Preservation fluid is what causes that kind of smoke. If the engine is expected to sit for long periods unused then it would have preservation fluid pumped through all the fuel lines and components. At next start up this is pumped through the system and into the fuel nozzles, giving the smoke until Jet- A1 replaces it all. A normal startup with Jet-A1 will give, at most, just a short puff of fuel vapour at lightup.
MsKrisSmith 10 months ago 2
The smoke occurs when the cool fuel is introduced into the combustion chambers thats being pressurized, and when it ignites, it would cause this effect because its igniting cool pressurized fuel...thats basically it. but if the engine has been sitting for a long time, the oil settles. when the engine is started after so long, it has to cycle the oil to lubricate the system, and in doing so, some of the oil gets burnt when the igniters go off.
hope this helps
peace
triniphoenix007 2 years ago
Great video. Thanks for posting. I will be there for it's arrival at MKC. Looking forward to it.
aerohog 2 years ago
Awesome, have been looking for a video that shows the wonderful sounds that the RB211-22b (L-1011-1/100 only with this engine) makes on startup. I miss that and you sure felt if you were in the terminal and heard it from a long ways off.
This engine is known for some smoke on startup, but the number 1 engine in the other video smoked so much because it had not been started up in 3 years.
loaferguy73 2 years ago
I always liked the sound of the RB-211's starting, too. The growl was very distinctive--you could tell when one was starting anywhere on the concourse at the airport. Maybe someone can explain why the Rolls Royce engines have that distinct sound. As for the smoke, I don't know why...but I seem to recall it was pretty common.
robstitt22 2 years ago
Indeed, why the smoke ?
miguelmouta 2 years ago
This reminds me of seeing Gulf Air tristars starting up at Heathrow. I'd forgotten how good a Tristar sounds when it's starting up. Thanks for posting.
PS, why the smoke?
koksy 2 years ago