Some question about Boeing 777

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In summary, the conversation discusses main gear oleo strut servicing and the effect of charging it with nitrogen on the dimension of oleo extension. The pressure of the strut may remain constant as it reflects the weight of the aircraft. The topic then shifts to the construction and theory of the B777 strut and the role of oleo fluid and compress gas in its damping action. In response to the second question, the image provided compares the landing gear of the B777 to other transport airframes, highlighting its larger size. It is also mentioned that a Google search displays pictures of B777 landing gear configurations. The discussion does not address the calculation of EPR (engine pressure ratio) and its relationship with the EEC (engine electronic control).
  • #1
stan19
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For main gear oleo strut servicing, when we charging it with nitrogen, The dimension of oleo extension would increase or decrease.As wat i understand, the pressure of strut may remain constant as it reflect the weight of aircraft acting on it.
Any idea about the construction and theory of b777 strut. the damping action is by its oleo fluid or compress gas in the strut?




Question 2:
How the aircraft calculate the EPR of the day(max epr) ; when aircraft is power up eventho engine EEC is not powered, the value is still showing on the EICAS. Does it mean it do nothing with the EEC?
 
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  • #2
To respond to this thread, this image compares landing gear on the Boeing 777 to comparable transport air frames. From Wikipedia
1566776278397.png


A Google search displays these pictures of 777 landing gear configurations. Notice the large size of the 777 relative to other dual jet engine transports.
 

1. What is the maximum range of a Boeing 777?

The maximum range of a Boeing 777 varies depending on the model and configuration, but on average it can fly up to 7,370 miles or 11,850 kilometers.

2. How many passengers can a Boeing 777 accommodate?

The seating capacity of a Boeing 777 also varies depending on the model and configuration, but it can typically accommodate between 300 to 400 passengers.

3. What is the cruising speed of a Boeing 777?

The cruising speed of a Boeing 777 is approximately 560 miles per hour or 900 kilometers per hour.

4. How much fuel does a Boeing 777 use per hour?

The fuel consumption of a Boeing 777 also varies depending on the model and configuration, but it can use anywhere from 5,000 to 10,000 gallons of fuel per hour.

5. What is the average lifespan of a Boeing 777?

The average lifespan of a Boeing 777 is around 20 to 30 years, but it can vary depending on maintenance and usage. Some aircrafts have been in service for over 35 years.

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