Published Paper Details:

Indonesia is a country that is classified as just starting the era of independent space flight research, especially in the development of rocketry. One of the obstacles to the development of rocket technology in Indonesia is the limited funds and the high cost of rocket fuel. The purpose of this scientific work is to produce alternative space rocket fuels that have a strong but economical thrust for rocket technology produced from used cooking oil and rice straw - one of the biggest waste. Used cooking oil contains glycerides which have a long carbon chain, namely esters between glycerol and carboxylic acids which can be used as alternative fuels for rockets. In the use of used cooking oil as a rocket propellant in solid form which tends to be more practical in its manufacture and use, it is necessary to use the oil binding media which is flammable in order to increase the effectiveness of the propellant namely cellulose. In this study used cooking oil is obtained through accumulation of household waste. Then carried out two stages of testing, namely the fuel production test phase to determine the potential of raw materials namely used cooking oil and rice straw as alternative space rocket fuel, the variables seen in this test are ease of production and fuel safety and static tests carried out to determine the magnitude of the power propellant seen from thrust and thrust-weight ratio of rocket fuel tested. Obtained the value of thrust and the highest thrust-weight ratio obtained on the R9 engine, respectively 187.37 - 471.10 Kg and 176.30 - 440.61 for the thrust-weight ratio. The results of the two stages of testing show that the combination of used cooking oil, rice straw and liquid oxygen as an oxidizer can be used as alternative rocket fuels which are relatively safe, economical, and high thrust power.