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Strapdown systems have fewer moving parts, so they are more reliable and simpler than other systems. However, they do need more accurate gyroscopes and better computers, so they are a more recent development. | Strapdown systems have fewer moving parts, so they are more reliable and simpler than other systems. However, they do need more accurate gyroscopes and better computers, so they are a more recent development. | ||
==FlightGear's implementation== | ==FlightGear's implementation== | ||
There is a simulation of an INS being developed for FlightGear. It is discussed in the | There is a simulation of an INS being developed for FlightGear. It is discussed in the thread [http://flightgear.org/forums/viewtopic.php?f=6&t=3396 "INS Systems (from Unlimited Wishlist)."] | ||
The implementation is still in development. | The implementation is still in development. | ||
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<li>Detailed overview of INS systems | <li>Detailed overview of INS systems | ||
<li>Information on the IMU on Apollo 11 and gimbal lock | <li>Information on the IMU on Apollo 11 and gimbal lock | ||
</ol> | </ol> | ||
Additional: | Additional: |
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