Pic Of The Day

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• YYZRC Posts: 5,448 ✭✭✭✭✭

  January 2021

  They couldn’t hammer out the lip of the cowling and save $999,000?

  2006 390 EC
  2008 350 EC
  Georgian Bay

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• aero3113 Posts: 9,816 ✭✭✭✭✭

  January 2021

  LoL @Handymans342 , special filters designed by Rolls Royce. I’m not sure of a cabin cycle inspection, if there is one, I’m sure the number is extremely high.
  
  @YYZRC they can’t risk weakening the material. That old cowling will have the leading edge removed and a new one installed. Then be sold as a repaired unit, probably for $800,000.00 🙄 LoL

  2008 330EC

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• aero3113 Posts: 9,816 ✭✭✭✭✭

  January 2021

  @Handymans342 the fan blades I believe are titanium.

  2008 330EC

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• Handymans342 Posts: 10,375 ✭✭✭✭✭

  January 2021

  aero3113 said:

  @Handymans342 the fan blades I believe are titanium.

  Could you adapt a B3 to the back of that motor? Lol

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• aero3113 Posts: 9,816 ✭✭✭✭✭

  January 2021

  LoL

  2008 330EC

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• rasbury Posts: 8,956 ✭✭✭✭✭

  January 2021

  send me that motor....I bet I can do it for 2 grand....just would not fly with it!

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• YYZRC Posts: 5,448 ✭✭✭✭✭

  January 2021

  Handymans342 said:

  aero3113 said:

  @Handymans342 the fan blades I believe are titanium.

  Could you adapt a B3 to the back of that motor? Lol

  Steering pin will leak. 

  2006 390 EC
  2008 350 EC
  Georgian Bay

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• Ian Posts: 3,062 ✭✭✭✭✭

  January 2021

  rasbury said:

  send me that motor....I bet I can do it for 2 grand....just would not fly with it!

  And it would still leak at the transom.......

  Regards,

  Ian

  The Third “B”

  Ravena Coeymans Yacht Club

  https://www.rcyachtclub.com/

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• Ian Posts: 3,062 ✭✭✭✭✭

  January 2021

  aero3113 said:

  @Handymans342 the fan blades I believe are titanium.

  Yes they are.
  
  RR have had issues with their Trent 1000’s and some fan blade issues.

  Regards,

  Ian

  The Third “B”

  Ravena Coeymans Yacht Club

  https://www.rcyachtclub.com/

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• LaRea Posts: 8,069 mod

  January 2021

  Years ago, I did some work with an investment casting factory.  You wouldn't believe what it takes to manufacture those turbine blades.  The labor, the huge amounts of energy consumed ... it's quite a process.  

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• aero3113 Posts: 9,816 ✭✭✭✭✭

  January 2021

  I have one from an older Gulfstream GIV . It’s an amazing design. The newer blades are even more complex.
  
  
  

  
  

  
  

  
  

  
  

  2008 330EC

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• Handymans342 Posts: 10,375 ✭✭✭✭✭

  January 2021

  Is that blade undamaged?

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• aero3113 Posts: 9,816 ✭✭✭✭✭

  January 2021

  Handymans342 said:

  Is that blade undamaged?

  I don’t know how it happened but it’s warped in a couple of spots.
  
  
  

  2008 330EC

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• LaRea Posts: 8,069 mod

  January 2021

  The really complex ones have coolant or cold air running through passages inside the blade.  

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• Handymans342 Posts: 10,375 ✭✭✭✭✭

  January 2021

  @aero3113 What RPM do those motor turn at? They must have extremely tight tolerances. 

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• aero3113 Posts: 9,816 ✭✭✭✭✭

  January 2021

  I think around 12,500 maybe more. They say around 900 hp per blade 😳.

  2008 330EC

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• 69fastback Posts: 951 ✭✭✭

  January 2021

  The fan typically spins 3000-4000 RPMs. The low pressure and high pressure shafts spin much much faster. If the fan was spinning any faster, it would go supersonic and become noisy and less efficient. 

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• aero3113 Posts: 9,816 ✭✭✭✭✭

  January 2021

  Your right @69fastback , I was thinking HP and LP. Jet engines are noisy because they are spinning close to supersonic, they would really scream at supersonic. LoL

  2008 330EC

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• aero3113 Posts: 9,816 ✭✭✭✭✭

  January 2021

  I just did a quick google search.
  
  This is for the RR Trent 1000
  
  

  • Turbine: Single-stage HP turbine (13391 RPM), single-stage IP turbine (8937 RPM), six-stage LP turbine (2683 RPM)

  2008 330EC

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• aero3113 Posts: 9,816 ✭✭✭✭✭

  January 2021 edited January 2021

  Crazy to think this is going on inside the engine, LoL!

  “High pressure turbine blades inside the engine rotate at 12,500 rpm, with their tips reaching 1,200mph – twice the speed of sound.”
  

  https://www.rolls-royce.com/media/press-releases/2017/12-11-2017-rr-trent-xwb-reaches-flight-milestone-as-it-stars-at-dubai-airshow.aspx
  

  2008 330EC

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• 69fastback Posts: 951 ✭✭✭

  January 2021

  Yet the extreme reliability of them is unmatched. Pretty awesome design.  

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• aero3113 Posts: 9,816 ✭✭✭✭✭

  January 2021

  Fan blades on the G650. Near the tips of the blades you can see what looks like a barcode laser etched, it’s actually for balancing.
  
  
  

  2008 330EC

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• Aqua_Aura Posts: 2,705 ✭✭✭✭✭

  January 2021

  aero3113 said:

  Fan blades on the G650. Near the tips of the blades you can see what looks like a barcode laser etched, it’s actually for balancing.
  
  
  

  No stick on counterweight like a tire 😂

  1997 Bayliner 3988

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• aero3113 Posts: 9,816 ✭✭✭✭✭

  January 2021

  LoL!

  2008 330EC

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• Handymans342 Posts: 10,375 ✭✭✭✭✭

  January 2021

  @aero3113 Those oil resevior tanks I believe are made in Naples Florida

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• aero3113 Posts: 9,816 ✭✭✭✭✭

  January 2021

  Handymans342 said:

  @aero3113 Those oil resevior tanks I believe are made in Naples Florida

  Next time I have the cowlings open I’ll verify.

  2008 330EC

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• randy56 Posts: 4,085 ✭✭✭✭✭

  January 2021

  I like the pictures and chat about those jet engine's. i think it's great even though it's a boating forum. Oh as @LaRea said we are a drinking forum with a boating problem. 
  
  Had a wonderful dinner at laishley Crab house.
  
  
  
  

  Boat Name : 
  
  

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• raybo3 Posts: 5,614 admin

  January 2021

  Awesome picture 

  2002 342 Fiesta Vee PC Point Of Pines YC Revere MA. popyc.org     raybo3@live.com

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• YYZRC Posts: 5,448 ✭✭✭✭✭

  January 2021

  I forget what it is like to go to a restaurant. Next week I’m not sure if Ontarians will be allowed to go outside. Looks like fun!!

  2006 390 EC
  2008 350 EC
  Georgian Bay

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• Handymans342 Posts: 10,375 ✭✭✭✭✭

  January 2021

  I wasn’t ready for the pic

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