YYZatcboy
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Gear Up Or Gear Down?

Thu Jun 02, 2005 12:18 pm

At the end of an Aircraft's service Life, Will it have spent more time with it's gear up, or with it's gear down?


Edit: grammar :P

[Edited 2005-06-02 05:41:29]
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EMBQA
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RE: Gear Up Or Gear Down?

Thu Jun 02, 2005 12:21 pm

What....?? What is your question...??
"It's not the size of the dog in the fight, but the size of the fight in the dog"
 
YYZatcboy
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RE: Gear Up Or Gear Down?

Thu Jun 02, 2005 12:26 pm

At the end of it's service life, will an aircraft have clocked more time with it's Gear up, or down. Not sure how to make that much clearer....  Wink
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DLKAPA
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RE: Gear Up Or Gear Down?

Thu Jun 02, 2005 12:26 pm

Quoting EMBQA (Reply 1):
What....?? What is your question...??

I think it's pretty obvious.

I believe it will have spent most of it's life with gear down. You factor in that for every 2 hour flight on a 737 or A320, it's gonna take at least an hour to turn (not counting WN but I'll get to that). That on top of the RON's (which mean that it's gonna be parked on the ramp for upwards of 8 hours) and regular maintenance (the two latter of the three include WN-type operations), I believe an airliner will spend most of it's time wheels-down.
And all at once the crowd begins to sing: Sometimes the hardest thing and the right thing are the same
 
EMBQA
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RE: Gear Up Or Gear Down?

Thu Jun 02, 2005 12:31 pm

Do you mean will it spend more time in the air or on the ground....??

On average an aircraft flies on 8 to 10 hours a day, and not always seven days a week. Quick math will give you that answer.

Look at the concorde.. it was nearly 30 years old when it retired and I think the highest time aircraft had less then 25.000hrs. Some of the highest time DC-9's with Northwest are around 100.000 hrs, but are 35 years old.

At the end of an Aircrafts service Live....Will it have spent more time with it's gear up, or with it's gear down?

At the end of an AIRCRAFT'S service LIFE....will it have spent more time with ITS gear up, or ITS gear down.

[Edited 2005-06-02 05:54:14]
"It's not the size of the dog in the fight, but the size of the fight in the dog"
 
LS17031
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RE: Gear Up Or Gear Down?

Thu Jun 02, 2005 12:47 pm

Go easy EMBQA ... who do you think you are?
 
EMBQA
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RE: Gear Up Or Gear Down?

Thu Jun 02, 2005 12:49 pm

I'm the one answering his question and correcting his poor grammar..and just having some light hearted fun... nothing personal.

[Edited 2005-06-02 05:55:20]
"It's not the size of the dog in the fight, but the size of the fight in the dog"
 
LS17031
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RE: Gear Up Or Gear Down?

Thu Jun 02, 2005 12:56 pm

Oh, okay. I guess you've got got your work cut out for you then. We'll be expecting quarterly progress reports on how your efforts are going. So many posts, so little time as they say. Enjoy your mission.

Cheers
 
YYZatcboy
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RE: Gear Up Or Gear Down?

Thu Jun 02, 2005 1:07 pm

Thanks,

Here in ontario there is no such thing as grammar school. :P
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EMBQA
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RE: Gear Up Or Gear Down?

Thu Jun 02, 2005 1:13 pm

LoL... There is a great web site on the Concorde... I was shocked to see that the top time aircraft had only 23,000hrs.. with the fleet average around 8,000hrs..!! That is NOTHING for any Airbus or Boeing that same age.
"It's not the size of the dog in the fight, but the size of the fight in the dog"
 
320tech
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RE: Gear Up Or Gear Down?

Thu Jun 02, 2005 2:05 pm

Upper end A320's have around 60,000 hours and are 15 - 17 years old. 24 x 365 x 17 = 148,920.
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HAWK21M
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RE: Gear Up Or Gear Down?

Thu Jun 02, 2005 7:10 pm

On the Ground Def.Why the Doubt.
regds
MEL
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pictues
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RE: Gear Up Or Gear Down?

Thu Jun 02, 2005 8:15 pm

AC can turn a A320 in 20 minutes, of course they have containerized loading so that speeds up the process, don't think they do it all the time but they can.
 
hotje
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RE: Gear Up Or Gear Down?

Thu Jun 02, 2005 8:17 pm

Depends on type. For typical longhaul aircraft, the equation might be in favour to gear up. I know some figures of KLM's 747's and when in operation they spent an average 17 hours/day in the air.
 
glidepath73
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RE: Gear Up Or Gear Down?

Thu Jun 02, 2005 8:41 pm

Hotje,
your right. It depends on the mission of the a/c. A 772LR or the A345 is much longer in the air every day than on the ground. A Embrear 135 for instance might hop around the whole day within Europe or the US. That leads to much more time on the ground.

Regards,
Patrick
Aviation! That rocks...
 
MissedApproach
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RE: Gear Up Or Gear Down?

Fri Jun 03, 2005 3:25 am

Quoting YYZatcboy (Reply 8):
Here in ontario there is no such thing as grammar school.

You're tellin' me!  Silly (by that I mean Ontario, not you).
I think I see what EMBQA is saying. In airframe hours, most of those hours will have been logged with the gear up. However in realtime most hours will be spent gear down, engines off & time totalizer not ticking.
Can you hear me now?