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Rocket candy, or R-Candy, is a type of rocket propellant for model rockets made with a form of sugar as a fuel, and containing an oxidizer. The propellant can be divided into three groups of components: the fuel, the oxidizer, and the (optional) additive(s). In the past, sucrose was most commonly used as fuel.
Sugar Shot to Space is a volunteer project with the stated goal of launching a rocket into space (100 km) powered by rocket candy, a sugar-based fuel. [1] As of 2015, the project has launched a rocket that reached 33 km, about one third of the goal.
In general, rocket candy propellants are an oxidizer (typically potassium nitrate) and a sugar fuel (typically dextrose, sorbitol, or sucrose) that are cast into shape by gently melting the propellant constituents together and pouring or packing the amorphous colloid into a mold. Candy propellants generate a low-medium specific impulse of ...
As described by a 1980 patent, the candy is made by dissolving sugars in water and is evaporated at 320 °F (160 °C) until the water content is 3% by mass. [10] The water and sugar mixture is then cooled to 280 °F (138 °C), and while being intensely stirred, it is pressurized with carbon dioxide at 730 pounds per square inch [psi] (50 atm). [10]
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The candies distributed in Canada are marketed as Rockets, to avoid confusion with Smarties, [2] [6] a chocolate candy produced by Nestlé which holds the trademark in Canada. [7] The New Jersey factory produces approximately 1 billion rolls of Smarties annually, [ 8 ] and in total the company produces over 2.5 billion in a year.
With more than 600 flavors of micro-brewed, pure cane sugar soda pop and more than 1,000 varieties of candy, others think the news is pretty sweet, according to the DeWittes. ... Rocket Fizz candy ...
A mixture of sorbitol and potassium nitrate has found some success as an amateur solid rocket fuel. It has similar performance to sucrose-based rocket candy, but is easier to cast, less hygroscopic and does not caramelize. [24] Sorbitol is identified as a potential key chemical intermediate [25] for production of fuels from biomass resources.