As with artillery projectiles, larger rockets are more efficient in retaining momentum against drag. Another challenge with implementing a small launch vehicle is the difficulty of efficiently implementing a high specific impulse, liquid-fuel system because of the overhead of all the pumps, plumbing, and cooling. The size limit for an orbital rocket is driven by the amount of momentum lost because of atmospheric drag. NASA has been researching the smallest rocket that can return a sample from Mars to Earth. The question of what the smallest orbital launcher could be is one that I've looked at for a few years now.
For a small rocket-style stove or pocket rocket, where you have no more convolutions on the exhaust than a woodstove, you can get away with very small dimensions. Ideally, if you want to be extremely resilient to the uncertainties of life – you should invest in a small portable rocket stove and a large rocket mass heater as well! In fact, people have tried to motivate innovation in this area with the N-Prize, which is focused on putting a small payload (10 - 20 grams) into Earth orbit for less than 1000 £ . People certainly do launch rockets from high altitudes to reduce the size of the plug of air they must push through. The two boosters landing nearly simultaneously almost seemed like something out of a science fiction movie. I sure hope Musk can pull it off.
That was incredible! A rocket stove can be an extremely portable stove for cooking OR massive “rocket mass heater” for heating a small cabin or hut. Britain's Black Arrow rocket is about four ice cream trucks. Excerpts and links may be used, provided that full and clear credit is given to Mark Biegert and Math Encounters with appropriate and specific direction to the original content. Registered Office: South Quay Building, 77 Marsh Wall, London E14 9SH United Kingdom. http://www.redyns.com/Reference/MinLaunchVehicle.pdf. Ignoring the practicality issues, the issue then becomes one of "what is the minimum integrated air drag that can be encountered over a shape's flight during ascent." Top 10 Social Networking site according to there number of users. So, I think that the question must be constrained to an established practical limit on the length of the rocket. Practical limiting issues are largely associated with the practicality of developing small upper stages. However, it does appear in science fiction.
See this Wikipedia discussion about the Pegasus system, which has had 43 launches and is still operating today. All records listed on our website are current and up-to-date. People have been discussing these small rockets for many years. Historically, the orbital launch market has been dominate by customers who want to put large payloads into space. The following Google talk on microlaunchers is also useful. It carried a microsatellite TRICOM-1R, a three-unit CubeSat weighing about 3 kilograms. "A terrestrial rocket has to push through a plug of air equivalent to a 30-foot column of water." The rocket lifted off from the Uchinoura Space Center in Kagoshima prefecture, south-western Japan.
According the Air & Space magazine article, the smallest orbital rocket is "about the size of a pencil" for essentially zero payload. So the design of the rocket stove is extremely versatile. Your email address will not be published. For a given shape, larger rockets are more aerodynamically efficient because frontal area increases by the square of the linear dimensions and volume (and mass) scales by the cube of the linear dimensions (see this detailed discussion).
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