i tried making a working sub last summer with a plastic model hull from CN, but the hull was just a little bit too small (needed about 2 more inches). So i was wondering if there was some kit or hull out there that was about 21 inches long? seems like if you want a sub, it's either small enough to fit in a shoe box, or big enough to be the size of a real life torpedo. isn't there anything in the middle? this hobby is really starting to frustrate me...

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