ORIGINAL: gcopter
I plan to fly mine at a local park. So a 450 is about half the size of a 550? The wind factor rally concerns me. I can fly my 120SR in wind, is just that I'd rather not spend the whole battery over correcting for wind.
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In that case I'd be very wary of getting a larger machine...
I have the 120 SR also... it really can't handle more than about 5-10kts of wind. How much wind do you normally experience?
If you can fly the 120 SR in wind you will EASILY fly a 450 in wind... There is no comparison between the two..
If I can put it in perspective...
the 450 is 5000% more capable in wind that the 120 SR
A 550 might be 20-30% better than the 450 in wind..
Honestly, unless you regularly plan to fly in Gale force windsgreater than 41Kts the 450 will be fine.
I flew mine today in 35 kt gusting winds... no problem at all. The 120SR would have just blown away, even at full forward speed it would have been going backwards..