I took my CPP outside this afternoon for the first time because there was no wind and no snow on the driveway. Anyway, I had to get it up to about 90% throttle just to get it to hover. I could only get it a few feet off the ground at full throttle.

What a difference in air density from inside to outside. The temperature was -4 C or 30 F

Do you think your motor was just really cold? Outside in the cold, the air should have been denser and your lift even better. Not worse. That's why a plane needs a longer runway for takeoff as the air temperature increases. Another thought is the reduced current delivery capacity of the battery when it's chilled to that extent. In any event, I don't think the air density was the issue.

I think your right about the battery I flew my cx at 50 F and the charge only lasted 4 mins...

I took mine out today and got a 10 minute flight. The temp here was 20F.

I think its how long its been at that temp....mine was outside long enough to get pretty cold before I flew...

I flew my CPP the other day outside for the first time. I thought it was really gutless. But now that you guys mention it, it was sitting inthe cold for a couple of hours before I flew it!

It might be interesting to fly the heli in that same cold weather, but having taken the battery out of a pants pocket so that it's at body temperature. That could tell a lot about whether it's the battery that goes limp in the cold. My other concern about cold weather flying is whether all those little plastic parts become more brittle and are more easily breakable during a crash. Neall

Come to think of it, one could put a battery in the fridge, then fly inside where it's warm to see if the lift sucks. Best left to CX owners Neall

Ndoren,

Good point,, and your right, all those tiny little plastic parts do become very brittle and will break at the smallest impact.

Dave / Choppersrule

Well I tried it again tonight with a full battery and about the same air temperature and sure enough it took more power to get the heli to hover.

One thing I did learn was that you can quickly lose control of the helicopter outside where there are no boundries. I've done all of my practicing in an 8x10 foot area inside up until now and had great control. Outside it very quickly drifted away from me a number of times. So for all of you newbies out there reading this post, practice in a small area so that you learn better control. Outside, you have a much bigger box to work within and can quickly lose control on your heli.

Cast-away... did you take it straight from the house to outside?Im just curious because the CPP is on my short list for next Heli,and if it came out warm and flew right away,what could cause this?any cold weather flyers out there to help out on this?

Yes it was right from the warm house to the cold. By the way, I'm so glad that I made the decision to by the BCPP and not a lesser heli. It has bee tough to learn but following RADD's and not jumping ahead has saved me allot of money in crash repairs. I can proficiently fly tail in, left side in and right side in. I am now starting on nose in. In doors I might add.