What are some proposed means of interplanetary travel?

There are three proposed interplanetary means of travel that gain the most attention - BIPROPELLAND LIKE RACKETS, electric motors, especially ion engine or ion thruster and experimental (but extremely promising) vasimr, variable specific pulse magnetoplasma missile using a rocket and magnetic area. These interplanetary power systems have exhaust gas speed (ie top speed) 3 - 5 km/s, 30 - 50 km/s and 10 km/s - 300 km/s. A specific impulse (miles per gallon, basically) moves on a similar scale. In order to get out of the planetary surface initially, solid rocket boosters are often used. Ion engines are new and were tested for the first time in space in 1998en tested on Earth. The first orbit tests are expected to take place in 2010.

BIPROPLANT rockets are convenient than fixed rocket boosters for interpretingFor several reasons, the most obvious of which is that the BIPROPELANT rockets can be switched on and off, while solid missiles are one -off agreements. They also offer improved specific impulse and top speed. The disadvantage is that they are more expensive than solid missiles due to pumping machines. Fixed missiles work based on more "Fire and Forget" principle, as well as bottles missiles - ignite them, shoot them and that's it. BIPROPELLANT rockets have many more moving parts. However, for interplanetary drive, they are usually considered standard. These missiles combine fuel and oxidation to high pressure by turbopumps to create a pull.

ion engines work similarly to particle accelerators- ionizing a substance, usually argon, mercury or xenon, and accelerate it with a nozzle using a powerful electric field. This uses the ratio of ions to the weight to create a pull. Ion engines are exclusively for interplanetary travel because they produce too small move to make inthey have entered the ground gravitational field. Unlike ion engines portrayed in Star Wars, real ion engines last many weeks or months before they accelerate up to reasonable speed, but have a very high specific impulse and top speed compared to conventional missiles, which makes them attractive.

Vasimr is the most advanced but thoroughly feasible proposed interplanetary drive system. As mentioned earlier, the system uses radio waves and magnetic fields to speed up the movement, usually hydrogen. The magnetically induced "choke" allows a variable jet stream, and therefore a variable specific pulse component of the Vasimr abbreviation. These systems show the most promising, capable of accurate evaluation and could shorten the trip to Mars from years to 8 months. Vasimr was originally developed during a nuclear fusion research.