Re: Delta site updated

In article <OBVVe.427$gE7.161@xxxxxxxx>, Jeff Taylor <spam@xxxxxxxx>
wrote:

> Kevin Trojanowski wrote:
> > For anyone interested, the Delta III website
> > (http://www.insaneprojects.com) has been updated to include some launch
> > prep and launch pictures, as well as a couple videos.
> >
> > -Kevin
>
> Any idea what caused three boosters to be dropped just as they were lit?
>
> Although the core motor was slow to pressurize, it also appears that the
> launch rail wasn't up to the task. In the video it looks like the delta
> was leaning way over before the button was pressed.
>
> Very cool flight none the less.
>
> -Jeff Taylor

One of the primary advantages to a rail is the ability to add a backing
plate (imagine a 2 x 12 board eddgewise). This provides such profound
stiffness even a 45 degree launch angle can be reliably achieved. As
such it is suitable for a vertical launch of a heavy rocket.

I strongly suggest the BALLS types put together such a rail so one
major failure mode is eliminated.

My name is Jerry Irvine.
"Tech Jerry" :)

--
Jerry Irvine, Box 1242, Claremont, California 91711 USA
Opinion, the whole thing. <mail to:01rocket@xxxxxxx>
Please bring common sense back to rocketry administration. (too late)
Produce then publish. http://www.usrockets.com
Ebay. http://tinyurl.com/6wlp8
.

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