[BProckets] first cluster - ignition

[Mike]

You just made me rethink my distance, if one does cato than you will likely
have two good lit motors that are free from the rocket and go in any
direction they chose.
----- Original Message ----- 
From: "flint hapirat" <flinthapirat at yahoo.com>
To: "Black Powder rockets discussion list" <bprockets at amateurrocketry.com>
Sent: Sunday, December 05, 2004 6:25 AM
Subject: RE: [BProckets] first cluster - ignition


> Hi Dan,
>
> > Just what *do* you mean about a single match with
> > the cup for the cluster???
>
> Yup.
> If every engine has a quick match attached, and all
> quick matches are join at the ends inside the aluminum
> cup - than the granular BP and a single Ematch will do
> the trick.
>
> > I follow your other concept and have thought about
> > clusters someday myself
> > and like the sound of your two quick match per
> > engine w/cup method that
> > "separate" on blowing the cup and igniting the
> > matches.
>
> You won't need two ematches - only one. If it ignites
> the cup - that's all you need. I use black match
> (primitive, I know... but I make black match faster
> than ematch)
>
> >
> > Just how disruptive to the flight would it be if one
> > engine in a 2 or 3 (or
> > more) cluster assembly failed?  Intuitively I would
> > guess it'd not affect
> > the flight to a destructive or HORRIBLY flight
> > altering extent.
>
> Before I thought of this - I had one triplet fly on
> two motors - it will fly, and it's OK, but the flight
> apogee is very low considering the extra "useless"
> weight and the balance is off by a bit.
> Anyway - the worst thing is that this is very annoying
> -  all the hard work on the engines and the system and
> then one fails. It can get worse though - if one motor
> catoes,  the result could be worse... ;)
>
> >
> > Duh . . . I think I just figured it out before
> > pressing the <SEND> key.  You
> > mean a single match PER ENGINE as opposed to two
> > matches per engine as you
> > originally suggested - right?
>
> No.
> A single match per CUP. The quick match does the rest!
>
> Try it!
> Dual motor clusters with  the motors tilted a bit will
> make a lovely spiral flying in a straight line
> upwards. I love the effect.
> Cheers,
> Flint
>
>
>
>
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