noahb

My Feedback: (67)

Hi, I have a Tams F-16 "fun scale" and I have yet to fly it. I am going thru the entire airframe and checking everything out. I am going to remove both main fuel tanks and check them out.

My question is this:
Should I run them in series or parallel? I am just a little concerned about them being in series and one not pulling down all the way. Anyway any suggestions would be appreciated.

Thanks
Larry

CARS II

My Feedback: (7)

Did you get the instructions CD with it? if not, call Tam to see if he can sand you the files via email. If you can post some pics. of the landing gear rails, doors, steering cables, pipe ( like to see what color is it by now )

The way the fuel tanks are set up in this jet is "T" the vent from the sadel tanks, one pick up line per sadel tank to the foward tank ( foward tank has two vent now and one pick up line ) the pick up line from the foward tank to the UAT.

If you have any craks on the tanks use epoxy resin and a piece of fiber cloth ( small one ) also pull on the elevators if both or one of them are loose, turn loose the two screws on clamp ( not all the way ) then hit the clamp with a ( something heavy ) and just enough to push that clamp into the shaft that little bit that is loose then tighten the screws back in.

That's all.

noahb

My Feedback: (67)

Yeah I did get the manual. It shows them in parallel connection. I was just wondering as if one sucks a little bit of air, it goes right into the UAT tank. But not sure if it is good for the pump to run these in series or not.

Yeah, I already gone thru the entire jet. The pipe is toast and have another one on the way. No doors, this is the fun scale version sold a few years ago.

everything else is setup and looks good.

Just going thru the fuel systme right now and want to make sure it's in top condition. Why I have them out, was wondering which is the better way to hook them up.

CARS II

My Feedback: (7)

I wouldn't have it any other way, by all means go through all of it, I do it all the time so that when I push the pedal to the metal there are no second thoughts on safety.

CARS II

My Feedback: (7)

When the fuel is depleted from the sadel tanks ( and one gets dry before the other ) the one that is empty is just acting as a big long vent line for the foward tank while the one with fuel keeps fowarding its fuel to the foward tank and eventually both tanks are suplying air to the foward tank to replace the fuel that is been transfer to the UAT.

Yeap, parallel is easer on the pump and the tanks ( all of them )

I hope this is not so confusing

bukeym

Hi guys,

It is also very important what type of tubing you use for the fuel tanks... Even if parallel connection is used it makes big differenc on the pump if you use tygon compared to 4x2mm Festo tubing. I have seen well over 6 volts on the fuel pump with with 4x2 tubing.. I had to change all tubing to tygon.

CARS II

My Feedback: (7)

Thanks for the tip...........[sm=thumbup.gif]

acw

My Feedback: (1)

I tried to plumb my Tam A4 saddle tanks in serie. As a result, I broke the main tank. Every time you connect another tank, the previous tanks are further pressurized.

Since the composite tanks are fragile, it appears that the best way is to have the saddle tank in parallel with 2 separate vents.

Arnaud