ORIGINAL: txaggie08
thats extremely nice. I think i want to do something like that, but im going to put cheek intakes ala a midget stang(i think the front end need to be widened a bit and break up the straight back line of the fuse). I think i also might do it out of fiberglass. I think i could make it look nice, but easier to work on that way(i want to make it look like it COULD be modeled after a real plane.)
What kind of servos am i going to need to fly a 120 size four star? will i need all high torques, or only high torques on the rudder/elevator? What size/voltages of battery's are going to be necessary to run something this size? LAst but not least.....would a small(23cc to the 33cc(or maybe the 45 as its actualy the same size if not lighter) homelite motors)gas engine be alright on here, or do i need to stick with a glow motor.
TX,
Ok the servos are going to depend on what engine you are going to go with. There are a few out there that are running small gas engines and that raises the weight of the plane so heavier duty servos are called for. I'd stay away from the homelite converted engines for this plane as they are heavy.
Personally I'd go with a large 2 or 4 stroke engine and say hitech 645 or 945 servos all around except for the throttle servo. If you want, then go with a 6 volt battery in the 1500mah or bigger range to get even more torque from the servos. In my eyes there is no such thing as too much torque.
Now as far as which engines, if you can afford it a YS110 will haul that plane just fine. I use it in a 10 pound Funtan90 and it's just fine turning either a 16X6 APC prop or the 17X4W, although the 16X6 would be ideal for the 4*, if you keep it lite. A YS140 Sport would be better turning an 18X6 and be slightly overpowered. A Saito 150 would be just about perfect on this plane and may be the best match for it although a YS110 is just about the same amount of power on 30% nitro and much lighter
Another 2 stroke would be the OS 160FX. This will be way over powered. Supertiger and Thundertiger would be good other choices as well as MVVS glow engines.
If you really want gas, then checkout
http://www.rcshowcase.com and take a look at the RCS line of engines. The 140 would be OK but the 180 would be better.