Hey guys,

I've been doing pretty well with my CP of late. Even though I don't get to fly as much lately, I'm still holding my own with the little yellow terror. Now I've been considering doing the expensive by turning my CP into a LiPo driven heli. The main concerns I have before I do go forward with this is 1) What all needs to change on my cp to make sure I dont blow the 4in1 and 2) Is it worth it to upgrade my cp or should I just go with a Pro?

I'd appreciate any thoughts and suggestions and even stories of your experiences of what worked and what I might need to avoid.

Also... I'd like some feedback from any CP owners who also have flown or own a T-Rex. After hearing a guy talk who owned one, I'm beginning to wonder if I should look into one since its always somewhat windy here and the T-Rex can hold its own in the wind (so he says). Basically I need to know how flight differs and if it is as solid as this guy keeps telling me.

that's how most people comment on the Trex... I dunno though I've never flown one

about upgrading to the lipo, go with a 3s and put atleast 1 heatsink on each of the motors, 2 if you can. The fuse mods and the paper clip mod will help you from burning out your 4 in 1, and that should be pretty much it. I would not go out and buy another heli unless you have alot of money just sitting around =)

let me know if you have any more q's

I can't comment on a T-Rex as I haven't flown one. I'm new to heli's and I am flying a CP myself right now. I upgraded to LiPO a few weeks back, here is what you will need.

A new main motor with a 9 tooth pinion
3S 800 Mah LiPO (or higher Mah but watch your weight)
A LiPo charger
Main & Tail motor heat sinks for sure.

I did not fuse my 4 in 1 and haven't had problems with overheating thus far. Another upgrade you should definately consider is the Bell Hiller Mixer, I did that one today and it made a world of difference.

All the above upgrades can add up money wise, so consider that carefully. You can easily put over $100 into upgrading your CP, plus what you paid for it in the first place. Weigh that against getting a new Pro for $220-$250. Me, I'm done upgrading for now and will learn to fly better before moving up to a Pro (to add HH Gyro) or a T-Rex.

I hope I've been helpful.

I've got the CP Pro and have many flights on it. I left the stock motor and gyro, but did go for a DD tail. Really nice heli. Flown it in a good bit of wind, too. It handled it pretty well. i just recently, however, started flying a trex 450 SE. Your friend is right. The jump from the blades is huge in terms of stability and solid maneuvering. If I were you, I'd save my money for a trex. Only problem is, its a lot of money to get one set up right. On the other hand, a CPP is $250, and to go brushless/HH its another $200. And then you're still dealing with a micro, which is just not going to fly like a well set up mini. If you include the tx, I've got about $1200 in my trex. So that's simply a different level of investment. I like mine so much I bought a second as a spare. So I'm concentrating on the trex instead of my Titan 50. Its that good. That brings up another piont: you can get into a nice Raptor 50 for a little more than a nicely appointed trex. Now you're talking fly in any wind. There's always going to be another level. You just have to decide which level fits your budget, desire and level of commitment. I flew 4 flights on my CP Pro today and had an absolute ball. I think at some point we just have to decide this is where I'm going to be happy.

I would definitely upgrade to the pro, rather than just put a lipo on your CP. Mine does a lot of moves really well. And with a brushless/HH setup it could be a lot better.

That's what I was thinking about to Aerodave. I was thinking I'd rather just invest the money and get a CP Pro, which has the components already needed to use LiPo... especially since it comes with one. I'd really like to get into a TRex but after the cost you incurred, it would be a while before I could even get the money to build it.

I did fly my CP in some pretty strong winds for its size and it did pretty well when i just put the nose right against the wind flow. The main thing I didn't care for was the fact that even when turned a hair off center with the wind, the wind would carry my CP off pretty fast. I did manage to recover but it sure as hell gets scarey at that point. I still use training gear when I'm outside, and luckily I did because she wanted to tip over a few times.

One question for you Dave... Is the TRex something I could fly with ease or is it another learning curve that might get costly? I'd be more in favor of one if it was something I could beat up a little without major damage to the bird, kind of like the CP.

one thing to also think about is you can detach the receiver from the 4 in 1 and add in the connectors you need and just add the gyro and stuff. Look here for more info
http://www.rcuniverse.com/forum/m_52...5/key_/tm.htm#

Also if you don't want to go that route... all you need to do to upgrade your cp to a cpp is 2 heat sinks (one for main and one for the tail), a lipo, a lipo charger, the canopy (optional), a 9T motor and some blade grips and mixer arms. I figured it out a couple of weeks ago, and it would run about 90 bucks from horizon hobbies, plus shipping.

here are the links to the blade grips and mixer arms
one of these
http://www.horizonhobby.com/Products...rodID=EFLH1171

and one of these
http://www.horizonhobby.com/Products...rodID=EFLH1172

Actually the trex is quite a bit easier to fly than th CP Pro. Its much more stable in a hover and the tail is handled so well, provided you get a good gyro/servo. The trex tracks better in FFF and is a dream to do aerobatics with. There would be no increase in learning curve. The opposite, in fact.