Yup! Here is the "pop-pod" [I like that term]:Another nice thing about a "pop-pod" is that in some models lead weight can be attached to the forward end of the pop-pod. This brings the c.g. forward during the boost phase. When the pod is ejected to activate the elevons the extra head-end is also removed from the glider model along with the dead-weight of the burnt-out motor. Since the motor is ejected, the model is classified as a boost-glider. If the rocket motor stays with the model and another is ejected, the model is classified as a rocket-glider.
Years ago I did a 2X Scale-up using mixed elevons. Worked nicely, but was a bit tricky due to the engine propellant mass being burned off. So if it was trimmed for the right glide CG, then it was tail-heavy at liftoff and trickier to keep the boost under control. If I moved the boost CG a bit more forward to make the boost easier, then it was nose-heavy for glide. If I did it over again, i'd probably use the water ballast trick, some water in the nose at liftoff, that drained the water during boost, so the glide CG was good and the boost CG was good. I used that method on a couple of models, my old X-1 and the booster for the Orbital Skydart Project.I hope to attempt an RC version, soon (mid-2017).
SNUG BOOSTER TUBE (or "pop-pod") - Yes, I also have had this problem with a recent Skydart. Sand, sand, sand is what I did. The tube should come out with a "light or medium" tug. The tube should not fall out.Great thread - sorry to jump on a year later.
I'm just finishing up the build on this same kit (started almost a year ago) I've noticed that the booster tube is VERY snug inside the glider airframe. It goes in ok but hard on the way out. Is this going to be a problem? I stiffened the forward green paper ring with CA and sanded it down, but I think the washers may be the culprit. Should I attempt sanding/grinding those down some for a smoother fit?
Also, I can't find the pin no the elastic that holds up the elevator during the glide phase. Any suggestions on replacements? I'd love to see a close-up picture of how that setup works - it's not clear at all in the instructions. Will look for elastic as suggested in the previous post.
This is my first boosted glider, so have a lot to learn.