very sturdy rocket. T' kit I received was missin' t' engine retainer. they shiped me a new one. Well, blow me down! Through t' wall fins, plywood fins in this tiny rocket. Well, blow me down! streamer recovery. Arrr! have flown it twice now. Ahoy! first flight A10-3t, 2nd flight C6-5. Avast! First flight nice and low, perfect for a park flyer. Well, blow me down! t' C6-5 was an amazin' flight. Begad! I only attempted it because thar be almost no wind at all. Ya scallywag! it landed only a little over 100yds from t' launch pad. went super high up. Blimey! I added a Piratarium metal engine retainer, and a Apogee Components ejection baffle. Great flights so far.