One if my sisters passed away last year. In her memory I made this model rocket. PLO are her initials, hence the name, and she made cookies, hence the decoration, but you can call your version whatever you want and paint it as you like.

WARNING: This rocket is a sport model. It flies HIGH. Over 1000' on a D motor, over 1500' on an Estes E. Should you be brave enough to stick a composite F32 in it, it will soar to over 2500'...but you'll never see it again.

To build this rocket you will need:

• BT-55 (33mm) body tube. Mine was 27cm long, but that's because that's what I had. You will have to vary the nose weight depending on body tube length (I'll cover that later)
• BT-50 (24mm) body tube for the motor mount. You'll need 90mm (this thing can take an E motor)
• Shock cord. I use Kevlar line.
• An 18" parachute.

The motor mount top and base should be easy enough to figure out. When you glue this into the body tube, be sure the outer ring of the "MMBase" piece is flush with the bottom of the body tube leaving the smaller diameter section protruding. The retainer(s) screw on to this part. I've provided 2 retainers. The ES version is for black power motors withOUT the retaining ring and the AT is for composite "Aerotech" style motors WITH a retaining ring. The "MMTop" piece has a small hole you can run your shock cord through. If you do the shock cord this way, tie it around the motor tube before gluing that in. Or you could do the estes style "folded paper mount" shock cord method.

The fins are designed to slot through the body tube and glue to the motor mount inside. A cutting guide is provided for you to cut those slots.

I've provided the openRocket files for this model. For the length of body tube I used, I had to print the nose cone at 55g. But I recommend what you do is print the nosecone LAST. Print everything else first and update the weights in the openRocket file with your actual weights. If you use a different length of body tube, adjust that in the file too. Once you have the rest of the rocket complete you can adjust the nosecone weight in the file to get the center of gravity correct (blue checked circle) (It should be about 2 body tube diameters towards the nose from the center of pressure (red circle). Longer body tubes can use a lighter nosecone.

Again, this rocket is designed to go high. We almost lost it in the sun when we launched it and that was on a D. I'm pretty sure we'd have never seen it again on an E, but you're welcome to try. Post a video if you do!

Video of the maiden flight: https://www.youtube.com/watch?v=dIOq_XBTMyI&t=5m23s