The purpose of this thread is to post your designs, builds and flights of rockets with ring-tails entirely aft of the main tube and motor casing.
In my humble opinion, whether or not there is any Venturi effect possible with a ring tail rocket is open to question, and remains to be determined. I look forward to the investigations and answers, and will start by building two different ways (of many) to locate a ring behind the rocket while trying to eliminate as much conventional fin area as possible.
Left, BT-60 tube intended for 24mm motors fitted with beefy T-sections. On right, A BT-55 for 18mm motors with the beginnings of a filigree trapezoid trusswork of bamboo and birch.
In my humble opinion, whether or not there is any Venturi effect possible with a ring tail rocket is open to question, and remains to be determined. I look forward to the investigations and answers, and will start by building two different ways (of many) to locate a ring behind the rocket while trying to eliminate as much conventional fin area as possible.
Left, BT-60 tube intended for 24mm motors fitted with beefy T-sections. On right, A BT-55 for 18mm motors with the beginnings of a filigree trapezoid trusswork of bamboo and birch.