All Questions
14 questions
1
vote
0
answers
70
views
Hoping to get some details on the GE CF6-50 Turbine bucket thermal protective coating
I just bought this beautiful little bucket and am trying to find the details so I can describe it accurately.
Just based on the gold appearance I assumed it was TiN, but looking further it seems like ...
- 11
3
votes
3
answers
885
views
What causes ram air turbines with more blades to spin slower than turbines with two blades? [closed]
Lets say aircraft has two ram air turbines that work as generators to produce electricity on each wing. One has two blades and one has 8 blades, both with the same diameter.
What is the aerodynamic ...
- 1,998
2
votes
0
answers
84
views
There is any example/studies/concepts on really short blade jet turbines/turboshafts? [closed]
Well, from the little I know, I think the reason jet turbines can't go that fast is because the tip of the blades would reach supersonic speeds and starting to generate too much drag.
However, if, for ...
- 131
2
votes
3
answers
160
views
What other materials apart from conventional nickel and steel superalloys can be used as a first stage turbine blade material?
Steel and nickel chromium alloys have been prominent and most used as turbine blade material although there are other materials such as tantalum carbides, tungsten and many more which I have no ...
- 21
2
votes
1
answer
501
views
How often are turbine blades in jet engines replaced?
How often are the turbines in the hot section of the jet engines replaced due to deteriorated TBC? or just how often are they replaced? lets say for CFM56-7
- 113
3
votes
4
answers
5k
views
What is the correct equation for rotor solidity?
I'm working in a project that uses"blade solidity ratio", or "rotor solidity", the problem is, there are several articles which defines the equation in a different way changing in the section of the ...
- 31
0
votes
1
answer
2k
views
Is low pressure compressor air used to cool turbine blades?
This photo shows LP cooling air is being used to cool turbine blades. the question is, is it possible to use LP air to cool the turbine blades?
would you please guys explain why do they use LP air ...
- 33
4
votes
1
answer
502
views
How are turbine blades overhauled?
How are turbine blades overhauled? What techniques are commonly used and how does it affect the integrity of the blade?
- 91
-1
votes
1
answer
439
views
What is the market size of high-pressure turbine blades for commercial aircraft? [closed]
I need to calculate the market size for high pressure turbine blades which are used in commercial aircraft. I am working on a business school project on this topic.
Any information which can be used ...
- 1
14
votes
2
answers
3k
views
What engine are these fan blades from?
I bought these from a metal scrapper and paid about $30.00 total figuring they're worth more than that in cool factor. Problem is they aren't nearly as cool if I can't figure out what engine (and ...
3
votes
0
answers
357
views
Is there an engine database that would include information on number of HPT blades per engine?
I am attempting to compile information on the number of high-pressure turbine blades across a wide range of turbine engines. Currently, I have only been able to find this information through brut ...
- 73
4
votes
1
answer
2k
views
What is the longevity and replacement schedule for turbine engine blades?
I'm trying to understand how frequently hot section turbine engine blades are changed out. Is this a calculation based on flight hours, material, engine size or maybe something else?
Apologies if ...
- 73
23
votes
1
answer
7k
views
Can you identify this jet turbine stage?
I was just wondering if anyone could give me any info about this turbine rotating stage I picked up at a yard sale today.
The stage measures 8-1/2" to the outside of the blades. The only markings I ...
- 231
19
votes
2
answers
24k
views
Why are aircraft turbine blades made of nickel alloys?
Why are aircraft turbine blades made of nickel alloys? What is the advantage of using them? Why did they replace steel alloys for turbine blades?
How to overcome failure cases of turbine blades?
- 191