Here is my latest kit, an R/C X-15 rocket glider at 1/21 scale. I designed this to be extremely light weight so it can actually glide, ready to fly at 7.5 oz with motor, designed for 18mm D-13 and D-24 motors as they are very light and the CG shift is not very much, boost speed is about 170mph or scale speed of a little over Mach 5. Length 29", wingspan 14", diameter 2.6" Starting to ship next week when I get in the smaller motor tubes and carbon fiber rods. I will also start to carry the casings complete with plugged forward closure, the plugged closures by themselves and the D-24 reloads. Those are on order with Aerotech now but have a 2-3 week wait for the casings.
Kit will be $70.99 shipped, decals available from Stickershock23.com via a link in the online instructions, this is so you can do your own if you want to save $$. I don't have an order button because I'm not taking payment for the kits till I have all the parts but you can use the contact form to get on the list.

You can see how it goes together here: https://dynasoarrocketry.com/?page_id=7001

4 flights and an intro here:

https://youtu.be/gfDItmRkDZY

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RC Rocket glider kits
www.dynasoarrocketry.com