I was wondering if anyone here with more engineering knowledge than myself has any thoughts on the feasibility of this project. Some online hobby shops sell DC brushless electric motors for RC planes. Some of these motors are rather substantial so I imagine they are for a large RC plane. Some are rated in a gas engine cc equivalent, this one is rated to replace a 50cc gas engine which I think is comparable to a decently powered backpack blower motorhttp://hobbyking.com/hobbyking/store/__17987__turnigy_rotomax_50cc_size_brushless_outrunner_motor.html. They also sell lithium batteries so I imagine if you knew what you were doing or did enough research you could potentially adapt the motor to a leaf blower and with enough batteries get some decent run time. If you didn't take the cost effectiveness vs just using a gas blower into consideration are there any other reasons that this would not be feasible?