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Blade 400 › 3D Whats the difference in these motors
03-04-2008 03:59 PM  10 years agoPost 1
rudderman

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Hopkins s.c.

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I got a replacement motor from horizon thats a ducted fan motor.What i wanted to know whats the difference in one thats labeled ducted fan and one thats not both are outrunners.the original stock motor is 3800kv and this one is 3500kv so i know the stock is stronger.But whats the main difference.The one they sent me by mistake was a 400 and the stock is 420.

Don't talk to me you will make me crash

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03-05-2008 02:47 AM  10 years agoPost 2
Tennwalker

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The label is the only difference.. The ducted fan runs straight to the fan like an outrunner and the heli motor is run with a pinion gear. The 3500kv means 3500rpm per volt applied. 3S 11.1v x 3500.

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03-05-2008 02:54 AM  10 years agoPost 3
rudderman

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Hopkins s.c.

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Thanks for the reply just what i wanted to hear

Don't talk to me you will make me crash

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03-05-2008 02:58 AM  10 years agoPost 4
Tennwalker

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From one South Carolinian to another lol..

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03-06-2008 01:32 AM  10 years agoPost 5
IFHELI

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Woonsocket,RI

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Rudderman,
I was just looking at horizon hobbies website. The 400 motor looks to have a different shaft than 420. It`s hard to tell in the pictures but the pinion may fit the 400. These motors both have a skinny and thick part to shafts. On the 400, the thick part is much shorter in the pics on website but if the set screw mates up right to shaft and pinion lines up to main gear then it will probably work.

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