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WhiteKnuckle

Up front on the real deal!

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Looking good, Tom!  Pilots do have a fascinating office, and an amazing view.

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An amazing coincidence, when the cabin crew announced the flight crews' names my Indonesian companion said "oh I think I know this man, we went to school together".  So we waited for all the passengers to depart and sure enough it was her friend and he kindly let me sit in his office and took the photo.  😊🙏

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Here's a question for you to which I already know the answer, a bit of trivia for you:

 

why is the tank 2 forward boost pump selected on?

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11 hours ago, Copper. said:

And why would you say that?

Yes or No would suffice. If I had known your quiz was going to be an exam I would not have answered :) You sound like a school teacher lol

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1 hour ago, Travelling_Wilbury said:

Yes or No would suffice. If I had known your quiz was going to be an exam I would not have answered :) You sound like a school teacher lol

Hehe that made me chuckle. Answer is of course, yes :)

 

the casual observer might note that the crosfeed is also open, allowing fuel to be taken from the right hand tanks.

 

The even more astute observer might note the forward pump is used instead of the aft... why?

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43 minutes ago, Copper. said:

The even more astute observer might note the forward pump is used instead of the aft... why?

Not sure on that one Brian

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9 hours ago, Copper. said:

The even more astute observer might note the forward pump is used instead of the aft... why?

It's the easier one for maint to replace? Maybe? I think one of our guys mentioned something like that at some point.

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This is an after flight condition with most possibly minimum fuel. As the No.2 fwd pump intake is at the lowest point in main tank 2 and no center tank scavenge pump connected to it, it's the most logically pump to use for APU feed.

 

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8 hours ago, scandinavian13 said:

It's the easier one for maint to replace? Maybe? I think one of our guys mentioned something like that at some point.

True. There is less clutter up there on the front spar. The rear has a bunch of things in the way to make replacement a bit harder.

 

1 hour ago, Johannvr said:

This is an after flight condition with most possibly minimum fuel. As the No.2 fwd pump intake is at the lowest point in main tank 2 and no center tank scavenge pump connected to it, it's the most logically pump to use for APU feed.

 

Good work! Full marks. Although I wonder if the tank 2 fwd pump pickoff is at the lowest point of the tank and not higher as the manuals suggest?

 

but yes, that is a great answer. And a very good pick up regarding the centre scavenge. Another good reason to use the forward pump if you can.

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9 hours ago, Copper. said:

 Although I wonder if the tank 2 fwd pump pickoff is at the lowest point of the tank and not higher as the manuals suggest?

Yes, Brian, I think you are correct. My wording was not very clear. If I remember correctly, on the ground, because of the a/c attitude, the fwd pump intake can be a bit lower than the aft relative to the horizon. Thank you for this "trivia" and a great observation and Tom, for sharing this picture.

 

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