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Wattage S 3 Viking issues

Old 05-22-2011, 02:52 AM
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bobbyz12
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Default Wattage S 3 Viking issues

Wired up the New motors and didnt have enough power to roll accross the floor? Heres what I have. 2 erc 400BL 1200kv highperformance motors. Two excede rc proton 30A esc and running off a 3s 11.1v 2100mah battery.The esc are tied together with a y lead and plugged into the reciever throttle. The battery power is spluced to have a red and black to both ESC? Any help would be great alot of time and money invested and realy want this one to fly.

Old 05-24-2011, 12:31 PM
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acdii
 
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Default RE: Wattage S 3 Viking issues

What size prop are you spinning and what is the weight of the plane? Looks like the prop size is 9x5 for those motors.
Old 05-25-2011, 06:57 AM
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V1nn1e
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Default RE: Wattage S 3 Viking issues


Battery charged up and able to supply x2 the current that one motor needs?

Old 05-26-2011, 04:45 PM
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Dr Kiwi
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Default RE: Wattage S 3 Viking issues

Is the TX throttle calibrated for full range?
Old 05-28-2011, 04:14 AM
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bobbyz12
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Default RE: Wattage S 3 Viking issues

Thanx Dr. got it all wired but don't seem like I am getting enough thrust ????? i have the ESC power leads spliced together. OK ? then i have the ESC servo wires running into a y plug to the reciever ? OK i seem to have more power when only one is hooked up. Should I run each motor off a seperate battery and y the throttle to the reciever? Is there a wiring drawing any where to show two esc to one battery. I am fairly new to double motors let alone jets and don,t want to crash this jet. It is a hard kit to find from what I am reading. Any help would be great.
Old 05-28-2011, 07:42 AM
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Dr Kiwi
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Default RE: Wattage S 3 Viking issues

Wattage EDF's running on 3s with 1200Kv motors?????????.... I thought you'd need 3000-4000Kv?
Old 06-04-2012, 12:17 AM
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kmdunnster
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Default RE: Wattage S 3 Viking issues

EDFs reqiure a much higher kv rated motor in comparison to a regular prop job. You got to remember, you only have a fan(55,70,90mm) trying to provide thrust whereas a propeller for the same size/weight model, you might have 10"/12"/14" prop. Big difference. The way to compensate for that difference, is turn that fan as fast as it'll go!!
Kev

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