Making and testing a liquid film cooled 2 liter bottle whoosh rocket. With a very simple design using compressed air and isopropyl alcohol, it extends the burn time substantially.

Channels mentioned:
Integza-    / integza  
Sam Rogers-    / samrogers  
SmarterEveryDay-    / smartereveryday  

The Woosh Rocket only uses:
-2 liter bottle
-3D printed nozzle(I don’t release files I find particularly dangerous)
-¼ in brass tee fitting
Fuel system
-¼ in vinyl tubing ~2 or 3 feet
-¼ in barbed hose fitting to ¼ in npt male adapter
-aquarium pump
Air system
-air compressor and hose
-¼ in quick connect fitting
-check valves
-various adapters for solenoid
Electronics
-½ in solenoid valve
-bbq igniter + AA battery
-relay and other control panel components
-3mm bolts + alligator clips + bunches of wires

Music:
Sage -Slenderbeats
New Day- Patrick Patrikios