Re: Re: F1D motor tube stiffness?

From: Kevin Lamers <kevin.lamers_at_gmail.com>
Date: Mon, 24 Feb 2014 16:20:15 +0100

Only if you will spiral at 45 degrees it will be usefull I think, but I
guess you get a much smaller angle with boron.
Maybe a carbon tube in between the posts and balsa for the rest of the
stick?




2014-02-24 14:37 GMT+01:00 Tapio Linkosalo <tapio.linkosalo_at_iki.fi>:

>
>
>
>
> On 2/17/2014 4:30 AM, Tapio Linkosalo wrote:
>>
>>
>> ... Therefore I'm still thinking about adding a 3 thou boron, in a spiral
>> (one or two rounds) between the wing supports, and in compression (so it
>> would be easy to see if the boron buckles). Has anyone tried that; any
>> suggestions if 1 turn is enough or if 2 turn would be better (2 turns would
>> weight more, but give more stiffness)?
>>
>>
> Added 2 pieces 3 thou boron, both making 2 spirals around the tube between
> wing post. Nah, no increase in stiffness to mention. Gotta go for thicker
> wood in the tube.
>
>
>
>
> -Tapio-
>
>
>
Received on Mon Feb 24 2014 - 07:20:17 CET