Model Rocket Engines

The Estes 1/2A3-2T mini (13 mm) engine is a single stage type of engine (green label) that is used for flying a model rocket. This engine is designed for flights in rockets weighing less than 2 ounces, including the engine. Each engine size is designated...

The Estes 1/2A3-4T mini (13 mm) engine is an upper stage type of engine (purple label) that is used for flying a model rocket. This engine can also be used as a single stage engine in lightweight rockets. Each engine size is designated by a letter and is...

The Estes 1/2A6-2 standard (18 mm) engine is a single stage type of engine (green label) that is used for flying a model rocket. This engine is designed for flights in rockets weighing less than 2 ounces, including the engine. Each engine size is...

The Estes 1/4A3-3T mini (13 mm) engine is a single stage type of engine (green label) that is used for flying a model rocket. This engine is designed for flights in rockets weighing less than 1 ounce, including the engine. Each engine size is designated...

The Estes A10-0T mini (13 mm) engine is a booster stage type of engine (red label) that is used in combination with an upper stage engine for flying a two stage model rocket. This engine is for flights in rockets weighing less than 4 ounces, including...

The Estes A10-3T mini (13 mm) engine is a single stage type of engine (green label) that is used for flying a model rocket. This engine is designed for flights in rockets weighing less than 3 ounces, including the engine. Each engine size is designated...

The Estes A3-4T mini (13 mm) engine is a single stage type of engine (green label) that is used for flying a model rocket. This engine is designed for flights in rockets weighing less than 2 ounces, including the engine. Each engine size is designated by...

The Estes A8-0 standard (18 mm) engine is a booster stage type of engine (red label) that is used in combination with an upper stage engine for flying a two stage model rocket. This engine is designed for flights in rockets weighing less than 3 ounces,...

The Estes A8-3 Engine Bulk Pack contains all the engine supplies that you need to launch 24 flying model rockets. Included are 24 A8-3 model rocket engines, 30 model rocket starters, 24 reusable starter plugs and 75 sheets of recovery wadding.Safe,...

The Estes A8-3 standard (18 mm) engine is a single stage type of engine (green label) that is used for flying a model rocket. This engine is designed for flights in rockets weighing less than 3 ounces, including the engine. Each engine size is designated...

The Estes A8-5 standard (18 mm) engine is an upper stage type of engine (purple label) that is used for flying a model rocket. This engine can also be used as a single stage engine in lightweight rockets. Each engine size is designated by a letter and is...

The Estes B4-2 standard (18 mm) engine is a single stage type of engine (green label) that is used for flying a model rocket. This engine is designed for flights in rockets weighing less than 4 ounces, including the engine. Each engine size is designated...

The Estes B4-4 standard (18 mm) engine is a single stage type of engine (green label) that is used for flying a model rocket. This engine is designed for flights in rockets weighing less than 3.5 ounces, including the engine. Each engine size is...

The Estes B6-0 standard (18 mm) engine is a booster stage type of engine (red label) that is used in combination with an upper stage engine for flying a two stage model rocket. This engine is designed for flights in rockets weighing less than 4 ounces,...

The Estes B6-2 standard (18 mm) engine is a single stage type of engine (green label) that is used for flying a model rocket. This engine is designed for flights in rockets weighing less than 4.5 ounces, including the engine. Each engine size is...

The Estes B6-4 Engine Bulk Pack contains all the engine supplies that you need to launch 24 flying model rockets. Included are 24 B6-4 model rocket engines, 30 model rocket starters, 24 reusable starter plugs and 75 sheets of recovery wadding.Safe,...