Model Rocketry
Specific impulse is also used to measure performance in model rocket motors. Following are some of Estes' claimed values for specific impulses for several of their rocket motors: Estes Industries is a large, well-known American seller of model rocket components. The specific impulse for these model rocket motors is much lower than for many other rocket motors because the manufacturer uses black powder propellant and emphasizes safety rather than maximum performance. The burn rate and hence chamber pressure and maximum thrust of model rocket motors is also tightly controlled.
| Engine | Total Impulse (Ns) | Fuel Weight (N) | Specific Impulse (s) |
|---|---|---|---|
| Estes A10-3T | 2.5 | .0370 | 67.49 |
| Estes A8-3 | 2.5 | .0306 | 81.76 |
| Estes B4-2 | 5.0 | .0816 | 61.25 |
| Estes B6-4 | 5.0 | .0612 | 81.76 |
| Estes C6-3 | 10 | .1223 | 81.76 |
| Estes C11-5 | 10 | .1078 | 92.76 |
| Estes D12-3 | 20 | .2443 | 81.86 |
| Estes E9-6 | 30 | .3508 | 85.51 |
Read more about this topic: Specific Impulse, Examples
Other articles related to "model rocketry, model, rocketry":
... Model Rocketry was an American hobbyist magazine published from October 1968 to February 1972 ... The launch of Sputnik in 1957 and the space race to the moon made model rockets a popular hobby ... There were also technical articles on model rocket design that would include several pages of theory and equations ...
... The Handbook of Model Rocketry 1st ed ... Follet Publishing, 1965 The Handbook of Model Rocketry 2nd ed ... Follet Publishing, 1967 The Handbook of Model Rocketry 3rd ed ...
... worked with Forrest Mims at the Weapons Laboratory, and both shared an interest in model rocketry ... Mims was an advisor to the Albuquerque Model Rocket Club and met the publisher of Model Rocketry magazine at a rocketry conference ... decided they could design and sell electronics kits to model rocket hobbyists ...
... George Flynn attended the Southwestern Model Rocket Conference at Eastern New Mexico University ... There he met Air Force Captain Forrest Mims, senior advisor to the Albuquerque Model Rocket Club ... about his "Transistorized Tracking Light for Night Launched Model Rockets" and it was published in the September 1969 issue of Model Rocketry ...
Famous quotes containing the word model:
“There are very many characteristics which go into making a model civil servant. Prominent among them are probity, industry, good sense, good habits, good temper, patience, order, courtesy, tact, self-reliance, many deference to superior officers, and many consideration for inferiors.”
—Chester A. Arthur (1829–1886)