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Stored/Parked Aircraft With Flaps Extended?

Warreng24 From United States of America, joined Nov 2005, 653 posts, RR: 0
Posted (5 years 3 months 3 days 22 hours ago) and read 5357 times:

Why are the stored aircraft parked with theiy flaps extended? Any particular reason?

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10 replies: All unread, jump to last

Bingo From United States of America, joined Nov 2006, 359 posts, RR: 1
Reply 1, posted (5 years 3 months 3 days 21 hours ago) and read 5354 times:

Here is my twocents

Note...Exchange rates may vary....
AMARC takes these birds apart to provide parts for those still in service. I would imagine that this configuration makes them easier to take apart. Once the fluids and batteries are gone, I dont think it would be too easy to take some of these structures apart.

PPVRA From Brazil, joined Nov 2004, 7947 posts, RR: 49
Reply 2, posted (5 years 3 months 3 days 21 hours ago) and read 5326 times:

Quoting Bingo (Reply 1):

Makes sense. Also, could wind have anything o do with it? Making the aircraft less likely to shift if not even flip over (unlikely, but happens to smaller planes)?

"If goods do not cross borders, soldiers will" - Frederic Bastiat

474218 From United States of America, joined Oct 2005, 6340 posts, RR: 9
Reply 3, posted (5 years 3 months 3 days 20 hours ago) and read 5298 times:

The flaps can not be lowered without hydraulic power, so they extend them so you can get to all the attaching hardware.

L-188 From United States of America, joined Jul 1999, 28886 posts, RR: 67
Reply 4, posted (5 years 3 months 3 days 20 hours ago) and read 5297 times:

On some aircraft the flaps will bleed down over time.

I remember a DC-6 one that had to RON at my airfield, Over the course of the night you could visible see the flaps get lower and lower

OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.

CanadianNorth From Canada, joined Aug 2002, 3354 posts, RR: 12
Reply 5, posted (5 years 3 months 3 days 19 hours ago) and read 5276 times:

Quoting L-188 (Reply 4):
On some aircraft the flaps will bleed down over time.

I remember a DC-6 one that had to RON at my airfield, Over the course of the night you could visible see the flaps get lower and lower

I was thinking it could be something along those lines as well. At my work last summer we had a mower that did something like that, hydraulics are what hold up the cutting units while your driving between areas that you're going to mow, and on longer rides you would have to pull the lever a few times because the cutting units would slowly sink down as you went along. So yeah, my guess would also be whatever holds the flaps up lost its grip over time.

CanadianNorth

What could possibly go wrong?

Pilotpip From United States of America, joined Sep 2003, 2996 posts, RR: 14
Reply 6, posted (5 years 3 months 3 days 19 hours ago) and read 5269 times:

By the time I finish fueling a 727 the Fowler flaps are usually dropped all the way down because the hyd system is not powered.

When fueling a DC-10 that's been sitting all weekend it's not uncommon for all the control surfaces to be "drooped" a little.

DMI

HAWK21M From India, joined Jan 2001, 29818 posts, RR: 61
Reply 7, posted (5 years 3 months 3 days 18 hours ago) and read 5254 times:

Easier to access components when unpowered condition.
regds
MEL

Think of the brighter side!

Sinlock From United States of America, joined Dec 2000, 1504 posts, RR: 3
Reply 8, posted (5 years 3 months 2 days 11 hours ago) and read 5057 times:

Also, Woth aircraft that are being used for parts some of the first things to go are hydraulic fittings, sequnce valves, and actuators. So in many cases you couldn't power up the systems if you wanted to.

My Country can beat up your Country....

Miamiair From , joined Dec 1969, posts, RR:
Reply 9, posted (5 years 3 months 2 days 11 hours ago) and read 5051 times:

Quoting Pilotpip (Reply 6):
By the time I finish fueling a 727 the Fowler flaps are usually dropped all the way down because the hyd system is not powered.

Minor Correction:
Kruger/Leading Edge Flaps. The Fowlers are the trailing edge flaps...

[Edited 2006-11-14 15:40:36]

N231YE From , joined Dec 1969, posts, RR:
Reply 10, posted (5 years 3 months 1 day 4 hours ago) and read 4901 times:

Two reasons:

a) to permit easier access to various hardware and auctuators, so that they can be removed and salvaged,

b) the hydralic system(s) is drained to enable it to be taken apart and salvaged: so once the flaps are extended, system drained and dismantled, the flaps are permanently extended.

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