KFM4 Mini Arrow w/modified power pod

[jpot1]

For fun took the arrow plan but did it as a KFM4. Flew better than the original. Now just need to design a canopy up front.



Also experimenting with a modified power pod with front BBQ skewers.

 

[Grifflyer]

Interesting, what are the differences between this one and the original, flying wise?

 

[jpot1]

I flew this one first and then the arrow per FT plans. The KFM wing needed a lot less reflex and seemed smoother overall and tracked better in my opinion.

 

[Userofmuchtape&glue]

That looks really nice jpot1. very clean!

Did you ever get around to making a pod?

 

[jpot1]

Yep, a bit of trial and error but here is what I ended up with.

 

[Grifflyer]

I like it!

 

[agentkbl]

you oughtta call it the atlatl. it's like a spear (the pod) mixed with an Arrow!

 

[DeltaZulu]

Hi there!
nice!!!

How thick is your foamboard? Or is it other material?

Making original at mo but would like to feel what a kfm4 wing is like
Or is it a kfm3?

Didi

 

[jpot1]

Hi @DeltaZulu, I am using DTFB which is 5mm thick (really a little less). For this build it’s kfm4.

 

[jpot1]

My larger KFM wing was getting a bit beat up so I decided to upscale this to a 38” wingspan. Wanted it simple so the main area will be two foamboard pieces laminated with spars.

The KFM4 piece will wrap the leading edge thus making a nice smooth LE. Winglets and it’s done. Going to use a modified pod with a Park 480. Thinking 9 or 10” prop. Should be fun!

 

[jpot1]

Upscaled version flew amazing!