Performance
Sugar based rocket propellants have an average Isp(specific impulse) of between 115 and 130 seconds. Compare that to the average Isp of an APCP (Ammonium perchlorate composite propellant), which is 150 to 180 seconds. Sorbitol and KNO3 based propellants with a typical 35:65 ratio are capable of a max thrust of up to 110 N, an Isp of between 110 and 125 seconds, and may have an average thrust of about 40 N. However, sorbitol and KNO3 rockets with additives have been recorded as having average thrusts of up to 100N, total impulses of up to 735 Ns, and specific impulses of up to 128 seconds.
Xylitol and KNO3 based rocket propellants are capable of a specific impulse of ~ 100 seconds and can have a total impulse of up to 230Ns. These have a unconfined burn rate of about 1.3 mm/sec. Overall, sugar rockets can compete fairly well
Dextrose and KNO3 based fuels are capable of an average thrust of ~80N, a total impulse of 144 Ns, and an Isp of 118 seconds.
Read more about this topic: Rocket Candy
Famous quotes containing the word performance:
“True balance requires assigning realistic performance expectations to each of our roles. True balance requires us to acknowledge that our performance in some areas is more important than in others. True balance demands that we determine what accomplishments give us honest satisfaction as well as what failures cause us intolerable grief.”
—Melinda M. Marshall (20th century)
“The audience is the most revered member of the theater. Without an audience there is no theater. Every technique learned by the actor, every curtain, every flat on the stage, every careful analysis by the director, every coordinated scene, is for the enjoyment of the audience. They are our guests, our evaluators, and the last spoke in the wheel which can then begin to roll. They make the performance meaningful.”
—Viola Spolin (b. 1911)
“Tennis is more than just a sport. It’s an art, like the ballet. Or like a performance in the theater. When I step on the court I feel like Anna Pavlova. Or like Adelina Patti. Or even like Sarah Bernhardt. I see the footlights in front of me. I hear the whisperings of the audience. I feel an icy shudder. Win or die! Now or never! It’s the crisis of my life.”
—Bill Tilden (1893–1953)