IRONMAN, if you’d bothered to read all of my post, you would realise that you had not addressed the point I made: That is, in the context of the overall engine, it is incorrect to refer to any part of the engine as a fan, except the rotating blades that compress air that will pass through the core and also air that will bypass the main engine. I also said that in the context of a single stage of the engine, you could use the word ‘fan’, although this would always be qualified with ‘compressor’ or similar, to prevent confusion with the fan stage. The term ‘rotor’ is preferred. I base this on having read an extremely large number of texts over the past year.
To help clear up the confusion, the sites you have referred me to are for non-technical people. The terminology they use is largely correct, but leaves a little to be desired. I believe this is how you could have incorrectly reached the conclusion that there is a stage in the turbojet know as the fan, when in fact this stage exists only in turbofan engines.
As for authoritative citings, go and read the following, as a warm up:
[1] Cohen H, Rogers, G.F.C., and Saravanamuttoo, H.I.H, “Gas Turbine Theory”, 4th ed., Addison Wesley Longman Ltd, 1996.
[2] Walsh, P.P., and Fletcher, P., “Gas Turbine Performance”, Blackwell Science Ltd., Oxford, 1998.
[3] Cumpsty, N., “Jet Propulsion: A Simple Guide to the Aerodynamics and Thermodynamic Design and Performance of Jet Engines”, 2nd ed., Cambridge University Press, 2003.
These books are definitive works on the Gas Turbine. They carry more weight than any website you could care to publish, including NASA and GE. This is because their content is technical in nature using accepted Gas Turbine terminology, not a rough explanation intended for the layman. Post all you like, but my sources ace yours in every possible respect.
And now to compare just how much we both know.:
I am a graduand from one of the best Aeronautical Engineering courses in the country. My dissertation was on an aspect of Gas Turbine performance. In less than a month, I will be submitting a paper for publication in an academic journal. This would suggest that what I say on gas turbines can be taken as true until shown otherwise. But, I have referrenced three authoritative texts that back up my claim. You have found some websites.
You have now questioned, rudely and openly, my truthfulness. So I am questioning yours.
I can believe you are 40, but if you are then you evidently stopped improving your social skills at the age of 7 or so. You scream and shout abuse wwhen someone disagrees with you, claiming that if their opinions differ from yous in any way, then they hate America.
You claim to have studied philosphy at college. This might be true, but I don’t believe you passed the course. You have not shown yourself to be neither able to understand another person’s reasoned argument nor construct your own reasoned argument in response. Your debating technique uses random abuse, gunfire noises and smilies. You quote out of context and refuse to accept that you have been wrong at any point, even after making the wild and stupid allegations that many people who know far better than you are ‘blathering’.
You are either:
- A war-dodging liar, still living living in his parents basement
- A war-dodging f*ckwit, still living in his parent’s basement
- A group of bored teenagers trolling.
Of course, you might be 1 and 2 combined.
