Bee_Sting Posted January 8, 2012 Posted January 8, 2012 did they fix the inu points bug in the new BS2? i know this was a problem in v.1.0.2 and i couldn't add them in the mission editor. i though they were very helpful with inu points in BS v.1.00. :joystick:
Nate--IRL-- Posted January 8, 2012 Posted January 8, 2012 INU Fix points can be added in the BS2 ME. INU Fix point alignment however was never implemented in any flavour of Black Shark. Nate Ka-50 AutoPilot/stabilisation system description and operation by IvanK- Essential Reading
Bee_Sting Posted January 8, 2012 Author Posted January 8, 2012 inu points were never really used in some ME servers online. inu points are they good to use in real life or sim life?
Yurgon Posted January 8, 2012 Posted January 8, 2012 (edited) inu points were never really used in some ME servers online. inu points are they good to use in real life or sim life? That's a real life feature (for the time being). :-) The INU detects changes in an aircrafts position with the help of gyroscopes. Over time, errors are accumulated so that the position as indicated by the INU differs from the actual position. With the help of INU fix points the INU can be re-set to the actual position in the world. To rephrase what Nate said above, it's this accumulation of errors that was never modeled in Black Shark, meaning that in BS, the position as indicated by the INU is always identical to the actual position in the world. Updating the INU position from an INU fix point has been possible in all versions of BS, it just wasn't necessary because there's nothing to fix in the first place. AFAIK, the only other problem with INU fix points was that they couldn't be edited (or added? not sure which of these) in the mission editor in BS1 1.0.2 due to a bug that has apparently been fixed in BS2. I'd like to add a question myself, though. Am I right that INU (Inertial Navigation Unit) is simply a Russian flavored wording for INS (Inertial Navigation System)? Edit: According to Wikipedia: The inaccuracy of a good-quality navigational system is normally less than 0.6 nautical miles per hour in position and on the order of tenths of a degree per hour in orientation. I'm not sure whether that is roughly correct for the Black Shark, but it should give a general idea of how small/big a problem it is. Edited January 8, 2012 by Yurgon
KosPilot Posted January 10, 2012 Posted January 10, 2012 The INU detects changes in an aircrafts position with the help of gyroscopes. Just a tiny insignificant clarification really regarding INU from this era; Aircraft attitude is detected by the aircraft attitude relative to the gyro platform while aircraft position is continuously calculated by reading accelerometers fixed to the gyro platform in all three axis. Noise and inherent inaccuracies in the accelerometer signals will accumulate as position error. (In order to keep the gyro platform horizontal at all times, correction values (force) has to be added to the gyro platform (heart of the INU) according to aircraft position and earth rotation. If the position is wrong, the gyro platform will start to tilt which will further accelerate position error since gravity will cause false readings.) I'd like to add a question myself, though. Am I right that INU (Inertial Navigation Unit) is simply a Russian flavored wording for INS (Inertial Navigation System)? From "old", INU is the box or unit that contain the gyro platform. INS is the complete system including INU, wiring, instruments and other referencing units. As they are cramming more and more into the INU, the border between INU and INS has become a bit blurred. 1
Yurgon Posted January 11, 2012 Posted January 11, 2012 From "old", INU is the box or unit that contain the gyro platform. INS is the complete system including INU, wiring, instruments and other referencing units. As they are cramming more and more into the INU, the border between INU and INS has become a bit blurred. Thanks for the info!
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