|
|
Post by bearcat on Nov 24, 2009 23:05:30 GMT -5
You guys that were at Gavilan Field last weekend probably remember the Piper Cub foamy I brought barely had enough thrust to make it around the flying field and land back home.
Then the itsy bitsy wheels didn't want to roll in the grass and the landing took it on the chin a little bit.
I changed the prop out for a 9x6 and put larger 1.75" balloon wheels on it. A little extra drag maybe, but if the motor likes the 1.5" bigger prop, I hope it will have plenty of thrust still. The NiMH battery is 8.4V at 650 maH. Closest thing I have to that is a 7.4V LiPo with 700 maH. Might as well keep the NiMH. The extra volt will provide some extra power and it's not that much short in maH either. I do have an 11.1V 1320 maH LiPo but I'm afraid that could be too much for the motor.
Still, if it works, it could end up flying pretty well on it.
I'll bring it out Sunday after Thanksgiving, in case anyone else will be flying. But I think I'll leave the sailplane at home probably.
I feel lucky I still have it even.
|
|
|
|
Post by Lt Swiss on Nov 25, 2009 12:17:12 GMT -5
I'll bet that thing flies great with those mods. Xclnt!  |
|
|
|
Post by bearcat on Nov 25, 2009 15:06:35 GMT -5
Hey check this out. I thought mine was a good deal at $89 bucks, but this is the same darn plane, exactly, and is $69 bucks. Even the switches on the side are exact and the way the wing attaches. The only difference is the color. Well, now I know where to get a new plane if I break something.   |
|
|
|
Post by Lt Swiss on Nov 26, 2009 13:59:02 GMT -5
I will be getting that guy for sure. I've passed on it before, but now I've seen it fly, I know it needs a bigger motor. I can mod it no problem. |
|
|
|
Post by bearcat on Nov 29, 2009 21:36:43 GMT -5
The Cub flew today, once. And good thing too. After my flight, Terry needed to borrow my transmitter because his had low batteries. Then even though we did a range check, my battery went into the red in the middle of Terry's flight too. Terry crashed as a result, and I feel bad, but his plane is so tough that all he needs is a new prop! From 50 ft, straight down, full throttle. Man, my sailplane would have shattered like a piece of china. Anyway, the Cub was so underpowered that even with a bigger prop, it didn't have the torque to increase rpm. So until I soup it up, that's it for that motor.
I'll post this elsewhere, but I've been pondering what motors to put in it. I could put the geared in-runner from the Stinson Voyager in it. If that can swing the larger prop, it would go a long time on a 1320 mah 11.1 v Lipo. But I'd have to change the motor mount too much. The ideal motor would be a good out-runner. I've got some, but they're all pretty powerful.
The weakest one is a 230 W out-runner I bought for the powered 2-meter sailplane. It's strong enough to fly a 6 pound plane, theoretically. So it should turn the 2 pound Cub into a frickin jet.
However, I am learning that in our thin air up here, it is better to have too much power than not enough. Opinions?
|
|
|
|
Post by bearcat on Dec 5, 2009 23:24:02 GMT -5
Kay, I ordered a stronger outrunner motor and it came in today. I worked hard on it and the plane is retrofitted, but I don't know if it'll be ready to fly for tomorrow. Maybe, we'll see. With the lighter equipment, it was a little hard to get it to balance, but it is a much lighter and more powerful plane now. Can't wait to see how it flies!
|
|
|
|
Post by bearcat on Dec 7, 2009 15:44:26 GMT -5
Nope. Got the plane souped up with the bigger motor, speed control, and battery but I didn't have the connectors. I have ordered four sets of male and female EC3 connectors from E-Flight, which are good because they can handle up to 60 Amps. That's 660 watts on a 3-cell lipo. No way I'm going to fry those.
So now I'm just waiting on connectors. This motor should make the Cub climb like a jet.
That would be weird, wouldn't it?
|
|
