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Em Drive and maybe a warp

This is a discussion on Em Drive and maybe a warp within the Space & Defense Technology forum, part of the Global Defense & Military category; NASA have done a paper with the Em Drive in a vacuum that suggests it is producing 1.2mN/kW thrust - ...


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Old November 7th, 2016   #16
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It keeps producing thrust

NASA have done a paper with the Em Drive in a vacuum that suggests it is producing 1.2mN/kW thrust - see https://drive.google.com/file/d/0B7k...Y0TVktQlU/view It's only a small thrust at this stage but is a couple of orders of magnitude greater than the other propellantless drives such as light sails.
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Old December 20th, 2016   #17
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Chinese testing EM Drive in space

Allegedly the Chinese are testing the EM drive in space: China claims to have built a working version of NASA's 'impossible' engine | Daily Mail Online
Sorry about the 'low brow' link, I will have a look at the NASA forums and see if there is any better information. There also have been claims it is being tested on board the X37 currently in orbit.
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Old December 31st, 2016   #18
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Since this drive only produces (theoretically, i.e. best case) 333 milli-Newtons/kW it is not very power efficient, and probably not size or weight efficient either.

To give you an idea of how absurdly small 1.2mN/kW its 0.0012 Newtons to create enough energy to hover in the air it would require around 10 newtons per kg. Given its weight (Several kgs to produce 0.0012 Newtons) Its extremely inefficient. Thunderfoot explains this quite well on youtube.

Its also quite possible the drive doesn't even work. Until a test is carried out in space we won't be for sure.

Now then assuming that this drive even works. Its doubtful its application will be beyond adjustments in space for missions beyond our stars in maybe 200-1000 years assuming warp drives don't exist. whereby said adjustments have 100s of earth years to be carried out. Your not going to see and spaceship using this for its main thruster outside of Sci-fi. The thrust is just too small to be relevant.(Its less powerful then a water hose or just getting a tolder to simply start kicking something along.)

Warp Drives may one day be a relevant way to travel. However today they require the entire mass(theoretically) of Jupiter for one jump. A massive gain from the entire mass in the universe(theoretically) a few years ago.
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Old December 31st, 2016   #19
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To give you an idea of how absurdly small 1.2mN/kW its 0.0012 Newtons to create enough energy to hover in the air it would require around 10 newtons per kg. Given its weight (Several kgs to produce 0.0012 Newtons) Its extremely inefficient. Thunderfoot explains this quite well on youtube.

Its also quite possible the drive doesn't even work. Until a test is carried out in space we won't be for sure.

Now then assuming that this drive even works. Its doubtful its application will be beyond adjustments in space for missions beyond our stars in maybe 200-1000 years assuming warp drives don't exist. whereby said adjustments have 100s of earth years to be carried out. Your not going to see and spaceship using this for its main thruster outside of Sci-fi. The thrust is just too small to be relevant.(Its less powerful then a water hose or just getting a tolder to simply start kicking something along.)

Warp Drives may one day be a relevant way to travel. However today they require the entire mass(theoretically) of Jupiter for one jump. A massive gain from the entire mass in the universe(theoretically) a few years ago.
Gidday cobber, welcome to the forum. Interesting topic and a field that I think gets more exotic with each new breakthrough. I learnt many years ago to try and not frame it in a 3 dimensional world.
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