I'm finishing a LT-40 ARF with a Evolution .46 on it, and I'm considering installing a 12oz tank in it instead of the stock 8oz. My question is, the tank I purchased...can't think of the company name right now...has a little bump on the top of the tank to allow the vent line to go into, allowing the tank to fill a little more full than if it were just resting against the top of the tank. Here's my question, the tank won't fit in the vertical position (because of the vent tube bump), so I'm wondering if I can mount it on its side. This would prevent using the little vent tube bubble, but, heck, the stock tank doesn't have one, so it should still work, right? Any comments on this? Thanks! -Spool [8D]

You are correct. It doesn't really matter which direction the tank is oriented, other than allowing a slightly more amount of fuel if your using the bubble tank. Since you are going with a larger tank anyway, I would say go for it.

It should work fine. As long as the vent line is not blocked, there should be no problem. Just make sure that the the tank is in roughly the same place in relation to the carberator and everything will be okay.

Kerry

And if there's a waiting line at your field to fly, don't stay up too long, lest you PO the other fliers.

Don't know why you want such a large tank, it's not necessary. I have a .50 on my LT-40 and I almost never have to dead stick it due to lack of fuel, but too that .50 allows me to fly most of the time at about half throttle, and sure stretches the fuel out. Then too, as it was mentioned, best not to get the others P.O.'d waiting for you to come down.

Spool,
As has been said, no problem mounting it on it's side. Not sure why you want a 12 oz tank though.

That engine will likely run 15 minutes (at least) on the 8 ounce, and that's a lot more flying time than you'd think. The average flight (if I remember correctly) is more like 6 to 7 minutes.
Dennis-

Hmmmmm.....think I'll vote for keeping the 8oz tank up front, as there really is no reason to add 4 more ounces. Trainers aren't normally flown at full throttle throughout the flight, which allows you to fly 10-15 min. Slow fly-by's, shooting touch & go's, hammerheads, etc'' is what's fun with trainers. Play with the left stick (both up & down and side to side), and you'll find you can really have a good time in the 10-15 minutes your flying.

Gary

don't put too big a tank into your plane because if you fly too long and start getting board that is the time when you start doing real stupid manuveers with very little thought about them before you do perform them. examples are I never should have looped or rolled that plane during a low pass of the field.

The larger tank turned sideways will work,but you'll be adding another 4ozs. in the nose until the fuel burns off.

Quick Question

Deos zat mean zat if I use up half the fuel, the plane will fly differently than If I had everything full?

Yes to a small extent. If you are worried about not having enough fuel(Yes I tend to use slightly oversized fuel tanks). I suggest trying a 10 oz tank. I use them alot. Also i suggest you look at a Hayes tank. They make lots of odd size tanks. Long and skinny and soo on. They are very simple to put together. Try one You'll like it. I use them at every oppertunity.

Mark Shuman