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Old Jul 09, 2006, 12:51 PM
Registered User
Raleigh NC
Joined Feb 2006
1,000 Posts
Which would give me more thrust in an EDF50

Feigao 5300kv with a 3 blade rotor and 3s
Medusa 4000kv with a 3 blade rotor and 4s
Medusa 4000kv with a 5 blade rotor and 3s
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Old Jul 09, 2006, 01:24 PM
Claus at Area 52
clausxpf's Avatar
copenhagen Denmark
Joined May 2002
2,540 Posts
it is not that simple
how is the ducting... what are the rotors ... and how many amps are running through..?
all do have a footprint on the result..
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Old Jul 09, 2006, 05:13 PM
Electric Coolhunter
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United States, TX, Fort Worth
Joined Jun 2000
14,694 Posts
The Medusa 4000Kv is too mild for most fan use...takes too many cells for really high RPM.

The Medusa 5300Kv is the real fan motor...does well on 3 cells. It gives a little more power than the Feigao 5300 at about the same amp draw...it is a little more efficent. It costs more...the eternal tradeoff.

Also, do you mean the 3 blade 2" pitch impeller, or the 3 blade 3" pitch impeller.

The 5 bladed rotor makes the most thrust, but is also a very large amp load for the 12mm brushless motors

I sense you are rather new at EDFs, based on your questions.....If I were you, I would start out with the Feigao 5300 or the Medusa 5300 and 3S packs and get your feet wet. Start out with the stock 3 bladed 2" pitch unit and then experiemnt from there. New rotors to test later are cheap. Do consider making the bolt on fan mod to prevent loosing the fan in flight.

Do some searches on the EDF50 and motors for it...tons of info has been posted over the last couple of years.
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