What will the Mars helicopter use for magnetic heading?

Zeldman said:
Beats having to meet the ADBS requirements....
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Uhhh... I think technically it does need to be ADS-b compliant. Above FL600, is class E airspace. ADS-B is required in Class E airspace above 10,000'? Does that sound right???
 
Datadriver said:
U-2: 70,000
SR-71: 85,000

rumors that both can go higher. What aircraft can go higher - not classified?
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I recall what in the Navy was called a "sea story" back when I was taking a class at Lackland AFB back in the mid 1970s that a U-2 was returning from Cuba squawking "50+" when ATC told him that there were thunderheads in the area up to 85,000 feet. The reply from the U-2 was something along the lines of "I can see them down there!". If true, just how high was this guy? We'll probably never know.
 
Palmpilot said:
The magnetic fields of planets are not related to gravity.
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:thumbsup:
Newton's Law of Universal Gravitation states that two objects attract each other with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. Gravity has nothing to do with geomagnetic fields.
 
I'd ask what time zone Mars is in, but someone would mistake that for a serious question. But, even so, it's still tempting.
 
Ghery said:
I recall what in the Navy was called a "sea story" back when I was taking a class at Lackland AFB back in the mid 1970s that a U-2 was returning from Cuba squawking "50+" when ATC told him that there were thunderheads in the area up to 85,000 feet. The reply from the U-2 was something along the lines of "I can see them down there!". If true, just how high was this guy? We'll probably never know.
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I've talked with a couple of U-2, RB-57F, and SR guys over the years and read a bunch of technical manuals and performance charts on all of 'em. 80,000 seems about as high as you're gonna get an U-2 or RB-57 unless you're willing to run it out of gas or unless you're near the equator where the air is a bit more dense up high. The SR could push up to the upper 80's if, if, if (climb until you're about out of fuel) but you really don't want to fly it that low on gas, just in case... The A-12, the SR's slightly lighter sibling could go into the 90's, but had the same kind of limitation as the SR regarding how low you really want to run it on fuel.
 
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