RE: 4*120 Build Thread
 

Deffinately need a flight report on this one. A G38 ought to haul this thing around pretty quickly. I am currently working on one with a few small mods. Typical clip one wing bay, 1.25 inch extended elevators and rudder and 1 inch top cap/counter balanced rudder. about a .25 inch extention to the ailerons. I too am working on relocating the elevator servos to the rear and using two. I plan on using an Evolution 26cc for power.

RE: 4*120 Build Thread
 

Well, the beast came to life today. I got one flight on her. The g38 runs great on the ground, but not so good in the air. So I have to wait for my gas guru to come out and help diagnose the problem. Anyway up and down in one piece. It seemed to fly good. More info after I get the engine running better.
Alan

RE: 4*120 Build Thread
 

Im fixn to build this plane myself. Anyone have any updates on how their lower end engines flew their 4 * 120?

RE: 4*120 Build Thread
 

I've got an XYZ 50cc in my 4*. Take off at part throttle and go UP from there.

RE: 4*120 Build Thread
 

My OS 1.08 has been flying mine just fine for 8 yrs and over 300 flights. I've even used it for a glider tug and had more than enough power. Did I mention our field is at 8700' elevation?

RE: 4*120 Build Thread
 

Jbenker.............Looooowwwweeeeerrrrr end! Hehe!

RE: 4*120 Build Thread
 

The XYZ is a low end engine as far as $$$$ are concerned. There is never tooo much power. By the way, I still had to add weight to the nose.

RE: 4*120 Build Thread
 

I flew my first one with a YS 120 and a 16x6-10 prop and it was great. My new one has a DLE 30 on it. Even better!!!
Maybe you could tell us what you are thinking of using. I like your tag line too.

RE: 4*120 Build Thread
 

I ordered a dls-20 but am thinking i may have made a mistake. Its supposed to have more hp than most 120 4stroke engines so Lord willing it'll do the job.

RE: 4*120 Build Thread
 

should be fine.

RE: 4*120 Build Thread
 

What all changes/re-enforcements are to be made on this kit? Ive already made up my mind on the detatchable canopy so thats good 2 go.

RE: 4*120 Build Thread
 

Here is a pic of the changes I made. !st I reinforced the wing with some sheet balsa. It keeps the wing from twisting in flight. I also added counter balances to the tail feathers.
Alan

RE: 4*120 Build Thread
 

Oh yeah, make sure to reinforce behind the wing on the fuse. It WILL break in to at that point! Ask me how I know.
Alan

RE: 4*120 Build Thread
 

Pics & details of each if u would.

RE: 4*120 Build Thread
 

I'll have to search for better pictures, but in the wing I cut some 1/8" balsa to fit diagonallly in the wing in front of the spar. That adds a lot of strength. The wing will not flex! I have heard of people over speeding the wing and it would twist. Not mine now. I also had some wood behind the wing at the fuse former that is located there. Just adds a little strength. I had the fuse on mine break in half there. I tried to put it back together, but it developed a twist, so I started with a new fuse. On my counter balances I used the thats about right theory.
Alan

RE: 4*120 Build Thread
 

I had to share. I really enjoyed reading this thread, thanks to all that contributed. I build this one as per plans/instuctions with no mods except adding to rudder 1+1/2" at bottom. I was surprised when it weighed in at only 10 pounds. No lead added, battery under fuel tank tray, balanced at midpoint of range (4+1/8") from L.E. Waiting for snow to melt for maiden.

RE: 4*120 Build Thread
 

SHARP PLANE!

RE: 4*120 Build Thread
 

Nice good looking build

RE: 4*120 Build Thread
 

Thanks, guys. I appreciate it! It's nice when all the parts fit right! [8D]

RE: 4*120 Build Thread
 

Ive pretty much got the wing done except for sanding & servo mounts & aileron stuff. I made the landing gear mounts & the f1 engine mounts then shut the lights out for the night. Ill try to post a pic. It wont be very good & itll look lopsided but its just sttin there.
The wing isnt warped, i put sheeting where it didnt belong.
http://i199.photobucket.com/albums/a...3/32829598.jpg

RE: 4*120 Build Thread
 

Ive got everything pretty much done, i have went with the dle30, ive made a few mistakes but thank the Lord they were fixable. Im going with fabric covering. Cub yellow & white & maybee checkering. Ive re-enforced the landing gear mount, criss crossing in the wing, tri stock here & there, rounded wing tips, extended tail (not done yet but will do), i might not sheet my vertical or horizontal stabs, really no need. Plus it might help me not have to add weight in the nose. I am going to use flying wires & the ohio superstar products tailwheel kit. And im using the single prop kit for the dle30. Im only going to put a windshield on it, not the whole canopy. Im going to put all the switches in the cockpit with the pilot if i have room for him.
http://i199.photobucket.com/albums/a...3/61dab1e6.jpg
http://i199.photobucket.com/albums/a...3/51c279b2.jpg
http://i199.photobucket.com/albums/a...3/76b155cc.jpg
http://i199.photobucket.com/albums/a...3/4dd68f53.jpg
http://i199.photobucket.com/albums/a...3/6601cc9a.jpg

RE: 4*120 Build Thread
 

Crashland, did you leave the firewall in it's stock location to mount the DLE 30? I know a HS that has a 120 kit, been thinking about picking it up, ESP so. E there will be no more from Sig

RE: 4*120 Build Thread
 

Yes i left everything as is. It balanced out good so far. I still dont have it finished yet lol! Im down to cuting out the hing slots for my plastic pinned hinges. And then just putting everything together.

RE: 4*120 Build Thread
 

How did the four star turn out . Lets see pics of all you bashed up kits I need some ideas.

RE: 4*120 Build Thread
 

Well.... Ive been up to my neck with work ( thank the Lord) & havent finished it. I will keep you fellers up to date once i get'er done though.