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Intense, a DIY hasoline powered soda bottle rocket launcher –

You will need the following items.

2- 3″ PVC pipe 15″ long
3- 3″ PVC Clean outs with caps
1- 1/2 12″ long plastic threaded pipe
1- 3″ PVC pipe cap
1- 3″ PVC pipe coupler
1- 2″ PVC 90 degree
1- 14″ piece of 1/4″ copper tubing
1- primer bulb
1- on / off / on momentary switch or off / on momentary if you use a piezo igniter.
1- coil , condenser , relay or piezo igniter.
1- 12 volt portable air compressor
1- can PVC glue
1- roll solder
1- small tank for gas 1/2 to 2 oz
1- small one way valve
1- pressure gauge minimum 50 PSI (air pump may include gauge and air T ) .
1- air T
1- 4 feet tubing 3/8 OD 1/4 ID for air
1- 4 foot small gas tubing that will fit in the big tubing , the smaller the better.
1- 4 foot spark plug wire
1 7.2 to 12 volt stick pack battery, available at hobby shops.

You will need various other parts: Super glue, wire, battery connectors, nuts and bolts,etc.
If you decide to build this project you may need to improvise on various parts and construction.
All the parts I used may not be available to you, or you may have a better idea about how to construct this project . Either way , you need some building skills and good old fashioned rigging. good luck.

Gasoline powered soda bottle rocket launcher – Link.