Chinese Flanker Family: J-11, J-16 ... Su-27SK/UBK, Su-30MKK
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Deino
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Deino
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Yepp ...see #1141
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j20blackdragon
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Hold on, so now the J-11A produces a blue flame afterburner?
The J-11A is from the early 2000s from kits supplied by Russia. This plane is guaranteed to use the older AL-31F under normal circumstances.
"The first two J-11s rolled out in December 1998 using the kit supplied by KnAAPO but were reported to have suffered QC problems. An annual production rate between 15 and 20 was achieved by 2003. A total of 95 kits were delivered from KnAAPO by summer 2004."
http://chinese-military-aviation.blogspot.com/p/fighters-ii.html
Photographic examples...
Su-27P using the older AL-31F produces an orange flame afterburner.
Su-27SM3 (produced in limited numbers) using the newer AL-31FM1 produces a blue flame afterburner.
Which engine is the J-11A using?!
Deino
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It is known that the J-11BH flown by the Naval Aviation are Batch 03 aircraft, but I've never seen this unique red/yellow stripe ... this is so far only common to the J-15.
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Flame color is result of many variables, mainly the chemical property of the fuel + chemical addictives being burned. A same aircraft engine can produced different colored flames due to different types of fuel, addictives and as well as the temperature of jet exhaust, and the speed of jet exhaust flow may also be a factor.Hold on, so now the J-11A produces a blue flame afterburner?
The J-11A is from the early 2000s from kits supplied by Russia. This plane is guaranteed to use the older AL-31F under normal circumstances.
"The first two J-11s rolled out in December 1998 using the kit supplied by KnAAPO but were reported to have suffered QC problems. An annual production rate between 15 and 20 was achieved by 2003. A total of 95 kits were delivered from KnAAPO by summer 2004."
http://chinese-military-aviation.blogspot.com/p/fighters-ii.html
Photographic examples...
Su-27P using the older AL-31F produces an orange flame afterburner.
Su-27SM3 (produced in limited numbers) using the newer AL-31FM1 produces a blue flame afterburner.
Which engine is the J-11A using?!
The type of metal alloy used in making the after burner noozzle can also be a factor too.
(I used to play with burning chemicals like sulphur, magnesium etc in chemistry lab during high school, and report our observation on the color of flames as part of school work.)
Thus we can not just use the color of jet exhaust as a single criteria to judge the type of engine.
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