Location of Ice Shield and Heat Shield in Relation to Fuel Lines on Boeing 777

  • Thread starter Thread starter samsam
  • Start date Start date
  • Tags Tags
    Heat Ice
AI Thread Summary
The discussion focuses on the location of the ice shield and heat shield in relation to the fuel lines on a Boeing 777. Fuel tanks are located in the wings, with fuel lines running through the pylons to the engines. High bypass engines utilize the nacelle as a heat shield, providing insulation between the combustor and exhaust. The Boeing 777 can be equipped with either Rolls-Royce or GE90 engines, with specific models used in various incidents. The engines are purchased separately by airlines and installed by Boeing.
samsam
Messages
9
Reaction score
0
Where are the in relation to the fuel lines on a Boeing 777
 
Engineering news on Phys.org
Tanks are in the wing, and they must drop through the pylons (engine supports) to the engine. So the question would be where are the fuel lines in the engine, at least with respect to the combustor.

High by-pass engines have the bypass and engine nacelle to act as heat shields between combustor/turbine and exhaust.

This will give some idea of the inner workings of the engine.
http://www.geaviation.com/education/engines101/index.html

I think FredGarvin and others in the aerospace industry can provide better information.
 
Last edited by a moderator:
Thanks for that, was it fitted with RR donks or GE90s?
 
samsam said:
Thanks for that, was it fitted with RR donks or GE90s?
The 777 has both RR and GE90. In the case of BA038, the engines were RR.

AFAIK, the airline or aircaft owner purchases the engines separately from the aircraft and they are shipped to Boeing where they are installed.
 
Cheers thankyou very much for your help Sir, i might need more.
 
Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'
Scenario 1 (figure 1) A continuous loop of elastic material is stretched around two metal bars. The top bar is attached to a load cell that reads force. The lower bar can be moved downwards to stretch the elastic material. The lower bar is moved downwards until the two bars are 1190mm apart, stretching the elastic material. The bars are 5mm thick, so the total internal loop length is 1200mm (1190mm + 5mm + 5mm). At this level of stretch, the load cell reads 45N tensile force. Key numbers...
After over 25 years of engineering, designing and analyzing bolted joints, I just learned this little fact. According to ASME B1.2, Gages and Gaging for Unified Inch Screw Threads: "The no-go gage should not pass over more than three complete turns when inserted into the internal thread of the product. " 3 turns seems like way to much. I have some really critical nuts that are of standard geometry (5/8"-11 UNC 3B) and have about 4.5 threads when you account for the chamfers on either...

Similar threads

Back
Top