Re: F1D stick

From: Tapio Linkosalo <tapio.linkosalo_at_iki.fi>
Date: Tue, 25 Aug 2015 19:18:07 +0300

On 25/8/2015 3:32, linardic_at_yahoo.com [Indoor_Construction] wrote:
>
>
> Seen Aki Danjos f1d model dwg and he uses a very short motor stick. I
> am wondering if anyone tried this approach and if you can share
> experiences and conclusions.
>

I just recently modified one of my old models to a shorter motor stick.
I removed the aft hook and moved it forward so that the hook-to-hook
distance is 165mm. I also moved the post forward and re-set the rigging
from the new back hook location. I have a new prop, 420mm diameter and
blade size/shape as in my F1M model (!).

So far the tests look promising. I started with more decalage, assuming
that the more forward CG would need that, but eventually reduced the
settings to about the same as they used to be. Seems like the model is
not highly sensitive to CG location. Flying with a half motor and VP
settings for Cat II, I can launch with full torque and the initial climb
is safe and good. My sticks are not too stiff so I used to have more
tube twist than I liked, so even with the shorter tube there is quite
enough of twist. I think I would like to try even stiffer tube. No
restrictions for that, the smaller pro blades are a tad lighter, so that
even though my old VP hub is heavy, I still had to add 100mg ballast to
make the model 1400mg. So plenty of "weight allowance" to make more
rigid model.




-Tapio-
Received on Tue Aug 25 2015 - 09:18:25 CEST