Recent content by mikey451

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    Orbital determination for spacecraft

    In the absence of other forces, two-body (i.e., a vessel plus a planet or moon or sun) acceleration is u/r^2, directed toward the central gravitational attraction. In the presence of other forces, acceleration in each axis is equal to the sum of the forces (including gravitational forces)...
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    A tribute to Pete.

    Nicely done, Ryan's friend. Thanks for sharing it with us, Ryan...
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    CEV Orion, 606 update

    Franz, Do you have a reference for trajectory information - both lateral and vertical? I've been assuming that the trajectory is "gravity turn" longitudinally, until the 2nd stage reaches about 20 deg., then holding 20 deg until after the "roller coaster". For lateral, I've been assuming...
  4. M

    How to create a realistic missile-vessel

    And the moment function...
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    People and the Space Shuttle.

    Here, we call them "lawyers" :P
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    People and the Space Shuttle.

    People will sometimes distance themselves from something they don't understand or can't fully appreciate by ridiculing it, or making jokes about it. Sometimes the joking can even be a form of grieving, so sayeth the shrink who visited a squadron I was in after the death of a pilot. Sometimes...
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    The point of Micro-gravity

    Have been a test pilot for the Navy, and for McDonnell Douglas. He used to stay current with us in MD-80's. At the time, I was flying MD-80's and T-45's for McDonnell Douglas, and F-14's for the Navy.
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    The point of Micro-gravity

    56 on Monday, and am not kidding.
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    The point of Micro-gravity

    I've flown with Pete, and knew him well. A very, very needless death...
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    The point of Micro-gravity

    Fighter pilots here use helmets to mitigate that :-) . Which also explains my (and every other ex squadron mate I've met) lack of hair on top.
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    The point of Micro-gravity

    Am also a jet jockey, who fortunately, has never had to.... But have had some incredibly good times in Australia...
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    The point of Micro-gravity

    Microgravity is a correction for the term "zero gee" or zero gravity. The reason for the term is that a balance of accelerations only exists at one radius in the orbital plane. In a spacecraft, away from that radius (typically, the center of gravity radius), apparent gravity is not zero. For...
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    Passed CheckRide; Now Certified Private Pilot

    Depends on the airplane, in my experience... And congrats, Dan, welcome to an auspicious and honorable community. Stay sceptical while having fun - of the aircraft, its systems, the weather, the terrain, other aircraft, and background communications chatter. They'll all talk to you, if...
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    CEV Orion, 606 update

    Code to Draw FD on the HUD Franz, Here 'tis (draft code, not tested fully) ------------------------------------------------ void SomeClass::DrawFlightDirector(HDC hDC) { // On input, the following variables are assumed to exist: // int g_CEVHUD.width reference display width (pixels)...
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    CEV Orion, 606 update

    Well I am, and it looks reasonably good, at first glance. My inverted V is actually a tad simpler, since it just involves two lines. Will dust off the code and send it to you by COB tomorrow...
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