[BProckets] first cluster - ignition

[Mike]

What I will be using is one e-match for all threee motors, from this ematch
I will have quick match going into each motor, which could probably burn a
5' piece in less than a second, so each motor should ignite in less than
1/10 apart. not sure what you mean about the cup though.
----- Original Message ----- 
From: "flint hapirat" <flinthapirat at yahoo.com>
To: "Black Powder rockets discussion list" <bprockets at amateurrocketry.com>
Sent: Thursday, December 02, 2004 3:52 AM
Subject: Re: [BProckets] first cluster - ignition


> Hi Mike,
> What if one match failed?
> Than you will have serious imbalance...
> Try 2 matches per motor.
>
> I used my version of quick match in a way that will
> allow the motors to ignite even if the system took
> off. I don't think this will fit your needs, but I'll
> specify anyway:
>
> Each motor was fitted (tight fit) with a quick match
> (two black matches in a masking type "tube". The ends
> of the matches are joined and an aluminum foil (heavy
> duty) cup, filled with granular BP holds the matches.
> A (slow) black match is pre-inserted into the cup.
> Upon ignition the slow match ignites the granular BP
> in the cup and the quick matches. The granular BP
> blows the cup and hence separates the link between the
> matches. If a single match is a bit "late" and the
> motor takes off - the match is attached to the motor,
> and it can still ignite "on the way". I have tested
> this several times using my small (1cm ID) motors and
> it works perfectly - both for double and triple motor
> sets.
>
> On second thought - you could use a single match and
> the cup concept...
>
> Let me know how it goes,
> Flint
>
>
> --- Mike <mrgizmo at vianet.ca> wrote:
> > I was thinking of a quick match spider, from an
> > ematch. Should give positive
> > ignition.
>
>
>
>
>
> __________________________________
> Do you Yahoo!?
> Yahoo! Mail - You care about security. So do we.
> http://promotions.yahoo.com/new_mail
> _______________________________________________
> BProckets mailing list
> BProckets at amateurrocketry.com
> http://exrocketry.net/mailman/listinfo/bprockets
>