ORIGINAL: cstevec
ORIGINAL: Safety Hawk
I thought so. Then you've heard me talk about getting a Funtana 40 already. But I came to a realization....For not much more money, I could get the F-90 instead. That's how I stumbled onto this thread. How much torque is needed for the servos on this plane? I'm looking for a good affordable servo that will be adequate for 3D.
You should post one4 of the pics you took of mine the week before! As to servos, I fly mine with Hitec 5475 servos. The other one I have has the 5625's in it but they are way overkill for the plane, I also have them in my big blue one I flew at the airshow. The 5475 servos are only 34.00 from servo city & occasionally they can be had in a twofer deal.
If you want some advice, Saito is releasing a new engine as we speak. Saito 1.25 4 stroke & I am sure that it is going to be absolutely the kittens britches for this plane. Claude & I both run Saito 1.50s in our planes but I'm not so sure you need that much engine. A 1.00 will fly the plane just fine but it needs about 6-8 oz. of lead in the nose to balance with that engine & lead is never a good addition to a plane.
I put the fuel tank behind the wing tube so CG would not change during the flight. I think my CG this way is 6.875 with 34oz motor/ muffler/ pump and 5oz battery up front with motor. My all up weight is 10 pounds. Plane flies well this way, but the elevator is very touchy for IMAC.
Recently I added 8oz up front to get an idea of what it would fly like with an OS160FX at 10.5 pounds. Not sure where this moved the CG to, but I was amazed how much nicer the plane flew. It became very good for IMAC and still 3Ded great. Long story short, I think that a lot of F90's would fly better with a more forward CG.
Next step for me is to move the rudder servo forward or fuel tank forward or go with a heavier motor. Not sure what I am going to do? Will fly it the way it is now till then. [&:]
If I were buying a new motor for this bird it would be the ST2300 or OS160