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Gear Up Or Gear Down?  
User currently offlineYYZatcboy From Canada, joined Apr 2005, 1098 posts, RR: 0
Posted (9 years 7 months 4 hours ago) and read 2758 times:
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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]


DHC1/3/4 MD11/88 L1011 A319/20/21/30 B727 735/6/7/8/9 762/3 E175/90 CRJ/700/705 CC150. J/S DH8D 736/7/8
15 replies: All unread, jump to last
 
User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 1, posted (9 years 7 months 4 hours ago) and read 2750 times:

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"
User currently offlineYYZatcboy From Canada, joined Apr 2005, 1098 posts, RR: 0
Reply 2, posted (9 years 7 months 4 hours ago) and read 2730 times:
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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


DHC1/3/4 MD11/88 L1011 A319/20/21/30 B727 735/6/7/8/9 762/3 E175/90 CRJ/700/705 CC150. J/S DH8D 736/7/8
User currently offlineDLKAPA From , joined Dec 1969, posts, RR:
Reply 3, posted (9 years 7 months 4 hours ago) and read 2728 times:

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.


User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 4, posted (9 years 7 months 4 hours ago) and read 2711 times:

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"
User currently offlineLS17031 From Canada, joined Nov 2004, 13 posts, RR: 0
Reply 5, posted (9 years 7 months 4 hours ago) and read 2673 times:

Go easy EMBQA ... who do you think you are?

User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 6, posted (9 years 7 months 4 hours ago) and read 2659 times:

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"
User currently offlineLS17031 From Canada, joined Nov 2004, 13 posts, RR: 0
Reply 7, posted (9 years 7 months 4 hours ago) and read 2637 times:

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


User currently offlineYYZatcboy From Canada, joined Apr 2005, 1098 posts, RR: 0
Reply 8, posted (9 years 7 months 4 hours ago) and read 2614 times:
AIRLINERS.NET CREW
CUSTOMER SERVICE & SUPPORT

Thanks,

Here in ontario there is no such thing as grammar school. :P



DHC1/3/4 MD11/88 L1011 A319/20/21/30 B727 735/6/7/8/9 762/3 E175/90 CRJ/700/705 CC150. J/S DH8D 736/7/8
User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 9, posted (9 years 7 months 4 hours ago) and read 2599 times:

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"
User currently offline320tech From Turks and Caicos Islands, joined May 2004, 491 posts, RR: 5
Reply 10, posted (9 years 7 months 3 hours ago) and read 2561 times:

Upper end A320's have around 60,000 hours and are 15 - 17 years old. 24 x 365 x 17 = 148,920.


The primary function of the design engineer is to make things difficult for the manufacturer and impossible for the AME.
User currently offlineHAWK21M From India, joined Jan 2001, 31712 posts, RR: 56
Reply 11, posted (9 years 6 months 4 weeks 1 day 22 hours ago) and read 2455 times:

On the Ground Def.Why the Doubt.
regds
MEL



Think of the brighter side!
User currently offlinePictues From Canada, joined Nov 2004, 246 posts, RR: 0
Reply 12, posted (9 years 6 months 4 weeks 1 day 21 hours ago) and read 2404 times:

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.

User currently offlineHotje From Netherlands, joined Jul 2004, 115 posts, RR: 0
Reply 13, posted (9 years 6 months 4 weeks 1 day 20 hours ago) and read 2398 times:

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.

User currently offlineGlidepath73 From Germany, joined Mar 2005, 1021 posts, RR: 44
Reply 14, posted (9 years 6 months 4 weeks 1 day 20 hours ago) and read 2366 times:

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...
User currently offlineMissedApproach From Canada, joined Oct 2004, 713 posts, RR: 2
Reply 15, posted (9 years 6 months 4 weeks 1 day 13 hours ago) and read 2157 times:

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?
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