I'm in the prosses of building a uproar 60 with a os.61 2-stroke my question is when it built, does in normaly come out either nose or tail heavy . thanks for any replies

I have never seen a model thathadaperfect center of gravety balanceafter construction. Most of the time some weight has to be added to get it to balance. I say added becaust the only other way would be to remove or shiftweight inside the model.Unless the balance is way off, a couple of small fishing weights glued in place should get it in balance. Hope this helps,
Ocelot31454

Most the time they come out nose heavy. If you do a quick search or go back a page or three you will find a thread on the Up-Roar started by Rick. He cut his own kits and did a LOT of mods to three of them. Cliff built a great example of one and is in the same thread. A lot of guys chimed in and showed what they did. Moving the battery around to get the CG is pretty normal but there isn't a lot of room in the roars. Look up the thread, it's a really good one!!!

I have built 3 of the forty sized & all of them came out nose heavy. The first one I built normal & ended up moving the servos & battery behind the wing. The other 2 I did the same with & still had to add a few ounces of weight. Bill

Thank you everyone for taking the time and responding. I will assemble the whole plane, with the motor, servos, reciever,and wheels on the plane. Before cover it ,and weigh it. and figure on where to install the battery. Will build a hatch if needed, for battery access. And if needed to be can either go with a alum. or plastic spinner, or even just a propellar nut to keep the balance to where it's suppose to be to cg. Thanx again.

Before you hard mount your servos and gear you can tape things in place on the outside of the plane to find the mounting location to get your CG. I do that to all my planes. At the moment I'm building a Cub for a friend. while in the bones I have used tape to hold things in position to find the CG. Using an OS .91fs in a 40 size plane so it was nose heavy from the get go. I ended up mounting the two servos for the elevators and one servo for the rudder behind the cockpit and made up hatches to get them in and out. Not completed yet but it is CGed or close to it. This is going to be a float plane so everything has to be mounted inside the fuse. As big as this fuse is it's getting crowded from the mid section back!!