Re: Re: Exact Builder of Model Rule

From: Nick Ray <lasray_at_gmail.com>
Date: Sun, 9 Feb 2014 00:01:32 -0500

Carbon tubes were successfully used at the 2012 world champs. I suspect we
will see some this year as well.


On Sat, Feb 8, 2014 at 11:30 PM, Phedon Tsiknopoulos <phedon21t_at_yahoo.com>wrote:

>
>
> According to Steve Brown a very stiff tube is worthless because it just
> does not flex downwards enough in order to give some very much needed down
> thrust during the initial burst.
> So carbon is out on all counts!
>
> Sent from my iPhone
>
> On Feb 8, 2014, at 12:56 PM, Kevin Lamers <kevin.lamers_at_gmail.com> wrote:
>
>
>
> The weight of 225 mg is for a carbon tube with a length of 10". 9" I can
> also make at 200 mg.
> My ID is 4.8mm = 0.2". They are probably stiff/strong enough to use
> without bracing.
>
> OK keep your process secret, but please share the material you used ;-)
>
> Kevin
>
>
> 2014-02-08 21:41 GMT+01:00 Phedon Tsiknopoulos <phedon21t_at_yahoo.com>:
>
>>
>>
>> Carbon is unsuitable for motor tubes.
>> My tubes have no carbon. Prepreg is too heavy.
>> My process will remain a secret.
>> What length are your tubes as you use them for official flights?
>> I shall be sending Mike Kirda a 9" one in order to test it
>> Mine are 1/4" I.D.
>>
>>
>>
>>
>> Sent from my iPhone
>>
>> On Feb 8, 2014, at 11:56 AM, Kevin Lamers <kevin.lamers_at_gmail.com> wrote:
>>
>>
>> Best wishes,
>> Kevin
>>
>>
>
>
Received on Sat Feb 08 2014 - 21:01:34 CET

This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:48 CET