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miyer2u
Joined: 19 Nov 2009
Posts: 41
Location: Oregon
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 Posted: Wed Dec 01, 2010 1:29 pm Post subject: Adding additional fuel tanks – Jump Seat – FS-2 |
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Dear Kolbers,
To enable me to have longer XC’s with out a fuel stop , I am planning to add two - Six gallon tanks to the rear of the FS-2 and move the existing two - five gallon tanks tanks to the jump seat. This will give me a total fuel capacity of 22 gallons. I have never carried a rear passenger and I weigh in at 195 pounds and have a Rotax -503. I surely plan to do Weights and Balance for the additional 12 pounds of fuel weight in the rear and 72 pounds fuel weight on the jump seat.
I wanted to check and run it through the “Kolb list” whom I consider the list comprising of the “Oracles” to know if any of you have flown a passenger in the jump seat in a FS-2 and what are the changes that I should anticipate in handling of the airplane by adding the additional weight.
Thanks much for your inputs in advance!
Mahesh
FS-2, Ashland, OR
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Richard Pike
Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee
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| Posted: Wed Dec 01, 2010 7:48 pm Post subject: Re: Adding additional fuel tanks – Jump Seat – FS-2 |
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I think your weight and balance would probably come out better with the six gallon tanks where the jump seat used to be, and then put one five gallon tank just behind them where the original front tank was, that will give you 17 gallons, and with a 503, that is a lot of fuel.
Here's how the two six gallon tanks fit in N582EF. No current pictures, can get some if you want. (Tomorrow)
Richard Pike
MKIII N420P (420ldPoops)
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miyer2u
Joined: 19 Nov 2009
Posts: 41
Location: Oregon
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| Posted: Thu Dec 02, 2010 9:09 am Post subject: Re: Adding additional fuel tanks – Jump Seat – FS-2 |
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Hello Richard,
Thanks for your input and the picture posted.
I will surely take your suggestion and calculate the W and B and move the two 6 gallon tank accordingly.
Will appreciate if you can send me additional pictures info, if you have them. What is your present configuration of the tanks? Did you find the FS-2 flight characteristics change after adding the additional fuel tanks?? I do anticipate a longer roll during take off.
Thanks,
Mahesh
FS-2, Ashland, OR
| | - The Matronics Kolb-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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Richard Pike
Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee
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| Posted: Fri Dec 03, 2010 8:03 am Post subject: Re: Adding additional fuel tanks – Jump Seat – FS-2 |
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Since FSDO has not yet returned the Airworthiness Certificate (which was collected after the crash, pending the rebuild) we haven't flown it yet, so no info to share.
But here is what it looks like, the only mods were a couple diagonals welded from what was the front sling seat mount/cross brace to the side vertical tubes, and a length of 3/8" tubing between the two tanks and up to the upper cross brace to help secure the tanks. The original gas tank tray now sits on those lower two diagonal tubes. Also added a cross piece to attach to the carrying handles on the top of the tanks. Works well, hardly any wiggles, very secure.
Since I wanted the fuel tank pickups to come out of the top of the tanks, the primer bulb was necessary. The Facet pump (visible below the tray, center) will not pull fuel without a prime, hence the primer bulb.
Downstream of the primer bulb is my "poor man's gascolator" (details here: http://www.bcchapel.org/pages/0003/pg13.html) and you can sort of see the line going to the quick drain valve off to the left of the fuselage.
The right tank in the picture has a JC Whitney gas gauge sender in it, after we take the film off the Lexan I take a picture of how it is installed.
The black thing on the front of the left tank is the battery box for the ANR headset.
More pictures later.
Richard Pike
MKIII N420P (420ldPoops)
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miyer2u
Joined: 19 Nov 2009
Posts: 41
Location: Oregon
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| Posted: Fri Dec 03, 2010 9:52 am Post subject: Re: Adding additional fuel tanks – Jump Seat – FS-2 |
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Gene and Richard,
Thanks for all the information. Richard, appreciate that you have a good web page and you help share lot of useful information for Kolb builders.
PS: Gene, I am in full synch with what you said….Longer XC’s call for more biological needs and I suppose I need to add “Little John” as listed on the Sporty’s catalogue to my shopping list  )
Wish you all a good one!
Mahesh Iyer
FS-2, Ashland,OR
| | - The Matronics Kolb-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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David Lucas
Joined: 10 Jan 2006
Posts: 79
Location: Europe. based Amsterdam NL
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| Posted: Sat Dec 04, 2010 1:31 am Post subject: Re: Adding additional fuel tanks – Jump Seat – FS-2 |
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Richard, Your photo shows your fuel tanks just above your battery/electronics box. Is that right ? Perhaps it might be wise to consider some sort of cover over the electronics such that if there was a leakage or spillage of fuel it doesn't go directly down onto those items but is drained off safely somewhere else. Just a thought. David.
| | - The Matronics Kolb-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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Richard Pike
Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee
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| Posted: Sat Dec 04, 2010 11:27 am Post subject: Re: Adding additional fuel tanks – Jump Seat – FS-2 |
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Something like cut the bottom off a plastic milk jug and drape over it? Sounds good to me!
Richard Pike
MKIII N420P (420ldPoops)
| | - The Matronics Kolb-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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