Mine dose good with a set of aluminum blades for low wind start up from England at a 51 inch swept area.
YES they are a low amp motor a bit heavy 14 lbs as I remember and about the long.
The blades I have are similar to the windy nation hyper spin 5 but before you put that money in the blades you might want to look into a higher amp output motor. I did cut a set of blades out of a pvc sewer pipe that ran out pretty good and stayed up there in several storms on 60 mph+ winds. It might be better if you hook one of hose dc to dc buck boosters to it.
Isaiah