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Guest KFC

HBY accuracy question...

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Hi, I was wondering if anybody had used the HBY enough to notice how accurate it is, particularly in long stretches. I know it is not supposed to be very accurate, but I find the need to "re-calibrate" the route very early on. Am I doing something wrong? Maybe have to do with the declination values I use? (I use new ones instead of the old ones FS uses.) Thanks in advance for your help,regards,Macs

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Macs,Where do you get the figures from? are you reversing the sign (provided you get your magvar from FSnav or SFP(like I do...its free).the initial points should be spot on, with time there is an ever increasing commulative error.This can be rectified either with RSBN correction, or using a VOR, if you're flying where no RSBN is available.//Michael

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Macs,it's hard to give you any accuracy specs, since it's dependent from many factors.However, flying with HBY is a dynamic and creative process. As Michael already pointed out, with RSBN/VOR/ADF along the route you would take every chance to verify your route accuracy, correct route offsets and so on. Depending from your upcoming heading change, also a clever choice of turn anticipation contributes to that. All that together, it's fascinating how much accuracy you can out of it. I can only recommend to practice and play around with it, with every flight you'll get more accuracy. Russian Navigator skills take time ;).As for the declination values, I don't know how big the discrepancy of FS and RW data really is. I don't know, how old is the FS database ? However, you could try some of the NVU flightplans on our site and insert your own magvar data for departure and arrival airport.http://www.protu-154.com/forum/viewtopic.php?t=1097If you recalculate, do you get a big difference for the "fork" value ? Mike

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Hi,The FS2k4 nav database is from the April 2003 dataset.Best regards,Vulcan.

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