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  #1  
Old 03-16-2008, 12:31 PM
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Default Safety vrs Time

We all know, or at least I think we all know that each time you get fuel you should wait 5 minutes and re-sump your tanks

We all know that right, then

then

How come when we had fuel at RR i never saw anyone kneel the plane down and wait 5 minutes and do it??

What is done, fuel and fly - what should be done, fuel, kneel the plane, wait 5 minutes for settling, sump and then fly
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  #2  
Old 03-16-2008, 06:32 PM
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Default Re: Safety vrs Time

i think most dont fill up the tanks or fill from empty there fore not needing to burp, or purg, or vent ?
but, im open to hear why ?
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  #3  
Old 03-17-2008, 12:15 AM
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Default Re: Safety vrs Time

Wrong, we don't all know that!

What does "re-sumping your tank" mean?
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  #4  
Old 03-17-2008, 10:54 AM
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Default Re: Safety vrs Time

Good practice is to check the fuel for contaminates every time after getting fuel. To do this you should wait 5 minutes or so to let the new fuel settle out any water or impurities.

Normal planes have a "sump" area, a naturally low area or a built in low area where water and impurities collect. In the kneeling canards, we make the leading edge a sump area by kneeling the plane down. SOOOOOOOOO, to properly sump/check the tank you need to kneel the plane, wait 5 minutes and squirt the tanks into your fuel checking cup to check for water and other contaminates.

Another source of water in the fuel tanks is bad O rings. Many tank caps seal with the use of an o ring and a bad O ring will let in copious amounts of fuel in even a light rain. Replace them at every annual.

When we, vtail nick and I, were bringing his plane back from Florida, we were quite shocked at the amount of water we sumped from the tank in Marietta GA, we immediately had the O ring replaced. The plane was fresh out of annual, but they had obviously not replaced this simple part that is know to wear quickly.

I thought doing that was called "sumping the tank".

When you get fuel - take the time to properly check the fuel.
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  #5  
Old 03-17-2008, 12:24 PM
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Default Re: Safety vrs Time

takes a lot longer than 5 min for anything to settle out, unless there is a LOT of water

one reason to have the FBO fill you up when you get there, then you sump before you leave

if you are just stopping for fuel & you get water you wont know until you have been in the air for a while, cause you wont see it if you sump the tank 5 min later - if you are worried about it go use the can, talk with the girl at the desk, sump it 30 min later

Just my opinion
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  #6  
Old 03-17-2008, 12:30 PM
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Default Re: Safety vrs Time

So it be written, so it will be done. Darn good advice - just like checking the altitude required on take off for a no power 180 back to the airport turn once i am flying.

I'll add some water to the tank, fill with fuel and check it after 5, another time 10 minutes and see how long settling time it takes to get it all out.

To start I'll go with the 30 minutes suggested.
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Enjoy the build,njut av byggandet, godere il costruire, nyd bygningen, geniesse den Bau, apolafse tin kataskevi, disfrute la construcción, curta a construção, Pidä hauskaa rakentamisen parissa, bouw lekker,uživaj grade?inaslajdaites postroikoi, geniet die bou
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Old 03-17-2008, 01:41 PM
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Default Re: Safety vrs Time

Of course, only time I personally have ever seen water was a small amount in the sump under the cowl on a 172XP, it had been filled up, sumped & run around the pattern a few times the day before for an oil change, noone saw anything the day before

only time any of our club planes had any significant amount of water was when the 182 was parked outside with a bad fuel cap gasket & it rained, I was told it took an hour of the rock & roll preflight to get all the water out

(182's with fuel bladders require rocking the wings back & forth & tail up & down to get the water out of any folds in the bladder)
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  #8  
Old 03-17-2008, 01:48 PM
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Default Re: Safety vrs Time

FBO's have filters on the pumps that will remove water, but I still am not real comfortable filling up & leaving immediately - I have done it, & will in the future, cant be sitting there blocking the pumps at a busy airport, also there are times you are in a hurry, but I think extra hard about where I will go if the engine quits on climbout (and I pray a little harder on takeoff )
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  #9  
Old 03-17-2008, 02:55 PM
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Default Re: Safety vrs Time

Quote:
Originally Posted by mdswitzer View Post
also there are times you are in a hurry,
Well spoke - getthereitus

hope none of us catch this dreaded aviation disease and get the plane crunch or terminal variety!

Pump, wait and sump
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Enjoy the build,njut av byggandet, godere il costruire, nyd bygningen, geniesse den Bau, apolafse tin kataskevi, disfrute la construcción, curta a construção, Pidä hauskaa rakentamisen parissa, bouw lekker,uživaj grade?inaslajdaites postroikoi, geniet die bou
dust

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  #10  
Old 03-18-2008, 04:09 PM
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Default Re: Safety vrs Time

Been thinkin about this thirty minute separation thing - mmmm - why does the oil and vinegar separate before i can dress a salad - gotta test it
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Enjoy the build,njut av byggandet, godere il costruire, nyd bygningen, geniesse den Bau, apolafse tin kataskevi, disfrute la construcción, curta a construção, Pidä hauskaa rakentamisen parissa, bouw lekker,uživaj grade?inaslajdaites postroikoi, geniet die bou
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