Fuel tanks or fuel cells

[Sloper]

Goodaye all

 

Whats the thoughts of using a fuel cell for a fuel tank???

 

These are some l am looking at.

 

http://www.summitracing.com/search/Part-Type/Fuel-Cells/?keyword=fuel+cell&kr=fuel+cell

 

In particuler this http://www.summitracing.com/parts/SUM-293220/?rtype=10 and this http://www.summitracing.com/parts/SUM-293215/

 

And what about foam filled ones?????

 

regards Bruce

 

 

[old man emu]

You will need two AN894-D8- Female Straight to Male 37 Degree unions to connect your fuel lines to the tank.

 

OME

 

 

[Sloper]

Havent looked at fuel line yet, would prefer flexiable types.

 

Maybe solid for the run from rear to front.

 

l have enquired about the weights of them.

 

regards Bruce

 

 

[Gnarly Gnu]

You will need two AN894-D8- Female Straight to Male 37 Degree unions to connect your fuel lines to the tank.

Does it work out cheaper than the dual zip-tie system?

 

 

[Litespeed]

Does it work out cheaper than the dual zip-tie system?

Under the Karmic system, yes much cheaper in the long run.

 

 

[Sloper]

Goodaye all

 

Got some weights today and it looks like a pair of these would be the go.

 

Weighs 7.7kg each and will give me 120lts the aluminium ones are 9.5kg each and would give me 113lts.

 

http://www.summitracing.com/parts/SUM-290108/

 

Will mount easily front and rear, just need to organise filler necks.

 

l know its heavier but comes off the shelf and is sturdy and it is foam filled so should be safer.

 

What does the typical 60lt tank weigh with sender?

 

regards Bruce

 

 

[Sloper]

Anybody??

 

regards Bruce

 

 

[fly_tornado]

how will that affect your weight and balance?

 

 

[old man emu]

Anybody?? regards Bruce

Bruce,

 

You really can only get that sort of info from the manufacturer, or retailer. Try asking the retailer first. They should know as they have to put the weight on consignment dockets.

 

OME

 

 

[Sloper]

l have its weight, and putting two in up the front and rear will help the balance, just wondering what a normal aviation tank weigh.

 

l really do think its a worthwhile way to do this.

 

regards Bruce

 

 

[fly_tornado]

how do you fill them?

 

 

[Sloper]

You can get necks that replace the cap and relocate the cap.

 

Front one is easy , straight the rear will requirea 45 degre neck.

 

All off the shelf.

 

Also concerned about weight creep, the factory Couger is 360kg l was hoping for 380 but it looks like it will go to 390 to 400kg

 

The changes l have been making l believe will make the aircraft safer.

 

regards Bruce

 

 

[fly_tornado]

you feel safer with 120ltrs of fuel on board?

 

 

[Sloper]

For trips l would, especially as its premium unleaded.

 

l want to do a lot of air touring.

 

Its the cells that l feel comfortable with, using sikaflex to bond the skin as well as the rivets just little things to make the plane last and be safe.

 

But the wieght adds up.

 

regards Bruce

 

 

[fly_tornado]

I meant taking off with 120ltrs of fuel, two people + luggage? that's about 300kgs

 

 

[Sloper]

She is rated at 800kg and will be registed VH experimental.

 

regards Bruce

 

 

[fly_tornado]

have you flown the cougar @ 800kgs?

 

 

[Sloper]

Nope, l hope to only ever go to 700kgs.

 

l suspect it would be a bit slow.

 

regards Bruce

 

 

[Guernsey]

Hi Sloper had you considered wing fuel tanks plus the normal nose tank as we have in the Sierra.

 

Each wing tank holds 27 litres and has a fuel transfer pump to the nose tank which we use during flight.

 

Alan.

 

 

[Sloper]

Lets say l do not want fibreglass tanks.

 

Transfer pumps add weight, the front and rear tank just require a valve.

 

l thought long and hard aboat wing tanks and that was looking good, but makes it harder to derigg.

 

l am in the process of putting the Couger on a diet, rear seats are the first target.

 

Fuel cells are safer.

 

regards Bruce

 

 

[Kyle Communications]

The Savannah tanks are a blown moulded plastic sort of tank. Don't know the actual material its made from but they feel nice and strong..and I have 4 of them in the wings total fuel is 140 litres