I completed a LOC IRIS 3 and have an AV bay in the payload section. This is not a dual deployment set up. My question is: How tight of a friction fit should there be between the booster and payload section. The Coast Guard red racing strip decal seen in the upper part of the rocket in the attached photo, is about 5 inches above the coupling. Right now, the fit is tight and certainly passes the “Shake Test”. I will be using 38 mm motors in the H or I range. I figure that the charge will be plenty powerful - but could some advice.
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