I ownone of these Cubs http://jeepgraveyard.com/Planes/J-3.htm I love it! I've dumped it a few times, once so bad that I thought the FAA was going to need to out and search for the black box! Overall it's a great flyer. Not easy to take off from the ground, but it flies well and cann be landed with out a lot of work. I just bought a 400 motor with a gearbox and a larger prop for it with the help of my local Hobby Store expert. He said that I he has done this on the same plane and the performance is incredible! I haven't tried this combo yet - I'm anxious, but too much wind lately. Which reminds, this plane is not great in breezy weather. Good Luck.
Keep it Level
Wow! Pretty harsh. I haven't had too many problems with mine. Your, right, It is a Shun Da Cub. Not top of the line, but not quite as bad (in my opinion) as has been stated here. Balancing the plane is imperitive. On a day with 5 mph winds or less, I'll get about 20 minutes flight time if I'm mindful of the throttle. I seldom fly anything at WOT, seems a waste. These are not aeobatic birds, but I've managed somethings. I upgraded the motor on one of them to a 400 with a gearbox and 10x6 prop that's sturdier. Great success! It takes off like a mad bird on steroids! If you like to fly out of the box, there are alot of good electric trainers available. I bought my cubs because I was able to get them for $79.00 on sale at Harber Freight.
So if you don't mind swapping the engine and rebalancing, you'll have another fun flyer to add to your collection. This plane takes a little skill, so I don't neccesarily think that it is a good trainer.
I bought one from Harbor freight under $100.00 Charged the battery took it out and fly it about for 12 minutes. Got up to 300 ft and it handled very nice. Gentle feather landing. The skin seems very delicate but can be easily repaired if it scapes pavement etc. I have flown many different models but this one flys right out of the box . I haven't thought of beefing up the motor , it seems to fly fine just like it is.
i just got the same cub today went out to fly,but was not able to get in the air planewould dive to the ground and at the last minute would try to pull up but it seems to be under powered or out of balance. fuse cracked 2/3 through .ca put it back . will try again tommorow.
I have never had trouble with my Cub. COG is critical and the ESC is left floating around inside the fuselage to some degree. Throw the plane out level don't aim it up. The battery will only go in one way so I can't see a problem there. It's very seldom a plane flys that well right out the box at the altitude in the summer that we have here. I usually climb up a 3 foot dirt bank to launch my planes in the country . I have to do that with several planes but not the Cub. Your plane must be out of balance or your motor isn't running full speed for some reason. I can check my RPM if you need a comparison.
I have had one of these for a couple years and flown it with no problems. Yesterday on take off a gust of wind slammed it into the ground not real hard but it snapped in two pieces. It is very brittle and easy to break. I glued it together and it's no longer a flying model, I took the servo's and other parts out to reuse.
I am having trouble locating 7x2 props used on the Freight Harbor Cub. Don't want to bother sending back to FH just for props and would rather find them locally or on line but it seems no one makes them. Does anyone know where I can purchase them? Substituted a 7x3 and a 7x4 prop but neither has the same thrust.
I recommend getting an APC 8x4 prop. It definitely improves the performance of the cub. However, in the long run, it will wear the engine out faster. I've since upgraded my cub with a brushless motor and lipo. I can't stress how much better it makes flying the cub. You can get a brushless/ESC combo for $15 and a quality lipo for $25 at UnitedHobbies.com. Check out the motor/ESC combos.
I'm surprised a 7x4 isn't working for you. I know a lot of people use that with their SDM cub. My cub always flew acceptably, although it was very underpowered (I had to fly almost at full throttle the entire time). Also, it was tail heavy, but even before modifying the battery bay to move the battery forward, I could still fly with minimal difficulty.
Heres a vid of me flying my SDM Piper CUb and me climbing a tree to get it out just thought i would post it here since its showing flight capabilities of the SDM Piper Cub oh and it landed in the tree because my battery was dead.
Yeah it was fine but the next day it acted up and it ended up going through many branches and snapping a wing off. It was odd it was struggling to climb and moving forward but at the same time it was at an odd angle so it was stalling too so yeah it was dead.
no not really i think the battery just finally gave out but once i have a real radio system by this christmas the only error for my planes not flying well is me. I wont have problems with glitching or underpoweredness.