[AR] Re: Spiral Burn Solid Propellants
- From: "Ed LeBouthillier" <codemonky@xxxxxxxxxxxxx>
- To: <arocket@xxxxxxxxxxxxx>
- Date: Tue, 5 Jul 2016 06:24:47 -0700
Robert Steinke said:
I would do a trade to see what if you just put the added insulation around
the outside would it be enough to do an end burner? It would be simpler with
higher packing fraction.
I’m still studying the insulation weight trade-off but I did realize one
advantage of the spiral approach.
The diameter of an end burner defines the diameter of the rocket casing. But in
the spiral grain rocket, you can trade off length for area and thereby get a
smaller diameter for the same burning area.
That may be an important characteristic in applications like missiles and
microlaunchers.
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