Hip Pocket Builders' Forum

Outdoor Free Flight Forum => EDF, Jetex or Rapier Powered Free Flight Jets => Topic started by: steve h on March 14, 2018, 05:48:08 PM



Title: KP 18mm duct fan
Post by: steve h on March 14, 2018, 05:48:08 PM
Hi all
I need a bit of advice on where the 3 wires on the ducted fan go on my KP speed/timer unit
hopefully someone can help
cheers steve


Title: Re: KP 18mm duct fan
Post by: 3view on March 15, 2018, 03:18:09 PM
I think that the 3 wires from the fan goes to a speed controller.  The timer then plugs into the Futaba type connector on the speed controller.

I haven't played with the 18mm fan and can't find any specs on the internet, just keep things as light as possible.

Here's a picture

Steve


Title: Re: KP 18mm duct fan
Post by: mike on March 16, 2018, 05:12:59 AM
The unit has a brushless motor.  The three wires go to a 'brushless motor speed controller' (aka a brushless ESC).  The three wires can be connected in any order to the speed controller.  Just plug it up and try it.  If it goes 'backwards', swap any two wires over and it will go 'forwards'.


Title: Re: KP 18mm duct fan
Post by: steve h on March 18, 2018, 03:25:59 AM
Thanks for the help


Title: Re: KP 18mm duct fan
Post by: fred on March 30, 2018, 11:55:33 PM
Actually.. looking at the parts pix... Fit an Rx instead of that "timer' 
Likely same weight/size if not Smaller... then You can control the engine from your transmitter.
Useful when one needs save their model :-0