LOC/Precision Iris (3")

	Manufacturer:	LOC/Precision
	Diameter:	3.1000 inches
	Length:	55.2500 inches
	Style:	Scale

Contributed by Peter Stanley

Brief:
The LOC/Precision Iris is a 3" diameter single stage rocket. It can be built as 1/4 size sport scale Iris rocket. Recovery is via a 36" parachute. I modified it to use electronics for dual deployment.

Modifications:
I built everything stock except for the deployment/recovery method. I converted the coupler to an electronics bay. I built this by adding another bulk plate assembly and a coupler tube stiffener, also purchased from LOC. I cut the stiffener down so that each end was recessed 1/4" from the edge. This allowed room for the bulk plates to fit in. I drilled two matching holes in each bulk plate for #10-20 threaded rod to go through. I put wing nuts on the ends of the threaded rod to pull the bulk plates tight against the stiffener tube. The electronics sled had a 1/4" tube glued to it that slid onto one of the pieces of threaded rod. (I should have made it go over both pieces though.) I cut a 3/4" piece of body tube and glued it in the middle of the coupler. This allowed me to permanently mount the arming switch, which from Newton's 3rd Rocketry. It was also a good place for the static port hole. This e-bay design, using the included coupler had plenty of room for my Perfectflite HiAlt45K.

I used some tubular nylon that I already had for both sections. The lower half attached to a 1/4" eye-bolt screwed into the motor's forward closure.

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