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Electric Power Systems

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bmcj

Well-Known Member
Supporting Member
Joined
Apr 10, 2007
Messages
15,127
Location
Granbury, Texas
Ok, since I am relatively naive in the area of electric propulsion, I would like to pose a question at a very basic level.

Ignoring finer points like charge time, How much would it cost to put together a homemade e-power system? For starters, I am assuming (maybe incorrectly) that you would want a brushless DC motor.

This is not for a specific goal, but for general education and perhaps to inspire someone down a path they had not considered. I would like to see your estimates on the following (for battery purposes, let's say we are shooting for 2 hours flight time):

30 HP
Cost: motor = ?, batteries= ?, controller= ?
Weight: motor = ?, batteries= ?, controller= ?

60 HP
Cost: motor = ?, batteries= ?, controller= ?
Weight: motor = ?, batteries= ?, controller= ?

100 HP
Cost: motor = ?, batteries= ?, controller= ?
Weight: motor = ?, batteries= ?, controller= ?


The three power ratings will help show whether the relationships are linear.

Don't be afraid to go out of the box in search of lower cost... i.e. - can a washer motor and DC/AC inverter be used?
 
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