Re: Solid Wood F1D Motorstick [1 Attachment]

From: William D. gowen <wdgowen_at_gmail.com>
Date: Thu, 09 Jul 2015 14:24:02 -0400

I think this is a great idea. I've done a solid stick for a 35cm that
came out at a very reasonable weight.

On 7/9/2015 2:14 PM, guyettevan_at_yahoo.com [Indoor_Construction] wrote:
> [Attachment(s) <#TopText> from guyettevan_at_yahoo.com
> [Indoor_Construction] included below]
>
> Since new juniors from science olympiad are venturing into F1D, I
> built a solid F1D motorstick to see how the ease of construction
> compares with the weight gain. As a junior, a solid motorstick is much
> easier to build than a motor tube. Attached is a picture of the
> completed stick. It came out at a whopping 438mg, but with a variable
> pitch prop it still needs 20mg of ballast. When I was starting out
> F1D, for me the hardest part was getting the webs positioned correctly
> in the motorstick without crushing the tube. This motorstick takes
> that out of the equation. Many of the parts on this stick can be cut
> back to conserve weight. The extension is a piece of 4.1# .017" (I
> used it because I had it laying around), the posts are heavy using
> .070" with .004" boron, and the bracing post doesn't do much work. It
> flies well and has a healthy amount of wing wash that allows it to
> climb with ease.
>
> Pros:
>
> -Easy/Quick to Build
>
> -Easy to handle
>
> -Survive exploding motors
>
> -Great compressional stiffness (I don't even think the bracing
> post/wire is necessary)
>
>
> Cons:
>
> -Heavy
>
> -Not the best torsional stiffness
>
>
> What do you all think?
>
>
> Evan
>
>
Received on Thu Jul 09 2015 - 11:24:09 CEST