N12932

I need to find two electric motors that when used together will be able to lift a 6 pound plane... Any one have sugestions?

jooNorway

"Lift" or fly the plane?

It also depends on what kind of flying the plane is meant for. A glider-like plane needs appr. 500 Watt to fly, but to do pattern and have unlimited verticals you need 800-1000 Watt total.

Two electric outrunners able to deliver 4-600 Watt each on 4S LiPo might suit.
AXI 2826/10, Hyperion 3025-10, Apache AP XL30-14T, MP JET 28/20-7, Phasor 30/3 or 45/3 and a lot of others. All motors have a weight close to 160-180 gram and delivers 450-750 watt.

Propellersize and kV-numbers depends on what kind of plane...

N12932

See i need to literally lift this plane verticly off the ground. Even if only for about 1- 2 min flight time. And I just had someone recheck the weight and it was actualy 10 pounds not 6. If this information would change the answer then I would be realy greatfull for the new info. Thanks

jooNorway

10 pound vertical... An estimate will be that you need a total of 1500 Watt, or two motors able to deliver 750 watt each. Since you seems to not fly fast but just lift you need motors with low kV-number to be able to run large diameter propellers on low pitch. Or motors with gearbox.
Since vertical lift is the clue small propeller with high pitch won`t work.

What project is this?

N12932

This is an 1.5 year old hobyco 60. Its now at the point that we are using it as a test bed for some new ideas and designs for later builds. There is a group of us looking at the posibility of building 40 & 60 size VTOL aircraft that will be able to get 10- 15 mins of flight. At the moment we have seen designs for aircraft that either get just a few minutes of flight or a couple that are two light, fragile, or small for outside flight in the winds that we contend with. So we are realy just trying to determine a few things about flight charcteristics with this project.

ampeater

My Feedback: (1)

Looking at some charts from Flying Models.org, an AXI 2826/10 on 4S with a 12X6 prop pulls about 50 amps and puts out about 100 oz. of thrust. Two of theses would put out about 12 pounds. It would lift it, but probably still won't give enough headroom for much of a pullout, or maintaining roll stability in a hover.

N12932

thanks for the tip. I may be able to get the weight down a bit but its difficult to findsun needed weght on this plane.