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Flying on Mars
jimharris submitted a bunch of links about flying on Mars: "X-Plane's author Austin Meyer is working out the details of flying on Mars. Meyer has taken his system and adapted it for the conditions on Mars and has discovered a lot about what it would take to fly on Mars, where the atmospheric pressure is 1 percent of Earth, and gravity one third, but laws of flight remain the same. Flying becomes difficult, and landing almost impossible. Other people are working with NASA to create Entomopters engineered to meet Mars conditions. More ideas about the concept can be found at PBS's Scientific American Frontiers. A quick search at Google will reveal many people are thinking about flying on Mars." It's a beautiful challenge - how to fly in a situation where everything you "know" about flight is wrong.
Same laws apply.. sure there is less of an atmosphere.. but you also have one third the gravity to contend with. The main problem with such craft on the martian surface would be the fact that 1) they are huge, and 2) they are light. With the storms that have been witnessed on mars recently, storing such a craft would be a nightmare if you didn't collapse it and store it. Lets not forget the possibility you COULD be in the air when such a storm kicks up.. nothing could save your arse if that happened..
.38g gravity of of Mars really helps - landing vertically should be a cinch.
Fortunately, the laws of rocketry also continue to apply. The
As for structural lightness, remember, the air is very thin. What looks like a huge storm on a satellite photo just isn't going to going to blow anything over on the ground. It's true, Martian winds can pick up small particles, and researchers are still trying to figure out how that happens - vortices maybe, and the oarger particles probably don't get very far off the ground. Global dust storms would contain only the finest particles.
Blimps/dirigibles on the other hand... with less than 1% atmosphere, you have less than 1% of the bouyancy. In the end your balloon will have to be 30 times bigger to lift the same mass. This means that, while a balloon might work, a dirigible won't. Too much structure required.
Life's a bitch but somebody's gotta do it.
I was able to find a few images of mars, this one here is particularly good. In terms of color it seems fairly ok to me, though the other color references are a bit limited. Also, a basic overview of Raleigh Scatter for those who are interested can be found at www.people.cornell.edu/pages/eac26/RaleighScatteri ng.html. A quick quote from it, Have you ever seen a brilliant red sunset? After all of the colors have scattered out of the white light, we see the oranges and reds. Where on the horizon are the red colors found? The reds are found close to the horizon because the sunlight must pass through many particles before we reach the point that red is scattered out. So if the atmosphere of Mars is particularly dusty for instance then you'd get a more red hue (at least if I'm reading this right), making the Mars sky closer in hue to a reddish color.
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