gizmothegecko Posted May 6 Posted May 6 Does anyone know what this effect is at 10:35? They look so cool.
pyrokid Posted May 6 Posted May 6 A first guess would be combination pinwheels/serpents with report in the 0.25" - 0.375" range. There appears to be a combination of rotational and "directive" thrust acting on the inserts. The dynamics are further affected by the break charge. I would start with a tourbillion type insert and cant the nozzle toward the long axis of the tube then tune the fuel to dial in the effect.
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