jongscx

[didn't know there was an edf forum, so I'm pasting it here from the regular airplane forum]

Ducted fans are more efficient than non-ducted, right?

but because of the added weight of the duct and air resistance, it may be worse to have it on...

It's going to be for a foamie, the Air-Hogs Storm launcher to be exact, and I found a line of styrofoam dixie-cups that are the exact right width for the prop (they're exactly the right diameter 1/4th of the way inside the "duct" then tapers a little bit... Will ducting the fan increase performance any? is there any way of testing thrust, and what kind of jump should i expect?

jongscx

bump?

ZeekWatson

My experience is that as soon as the SL prop touches anything it breaks.

jetpack

My Feedback: (1)

Proper fan to shroud clearance is a significant way to add thrust. It makes the ONCOMMING air go where it should, the boil over from the tips to the front of the blade is less of a factor but does play a roll. A proper funnel shape is also critical with the lead in of air.

Dave ESPI

Interesting notion...... Post a pic and try to make one work out. It sounds like it may work, but then again, it may not. I for one would like to try the modification as I love my SL's stock, brand new or all smashed up, they are still fun as H****