My friend can easily go up to 60-70 KM/HOUR on blue, but I am stuck on this speed because I am afraid of going fast, what about you guys?
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Why is this? I thought speed was speed?3. the gps on your phone is inaccurate anyway unless you use an app like ski tracks that adds slope into the equation.
because math and stuff, pretty sure even ski tracks is not doing the math realtime speed/slope, but using an average....Why is this? I thought speed was speed?
Curious because I use ski tracks and as of late an app called maprika, because it overlays your runs on the resort map.
In Maprika it tracks speed, but I don't think it tracks slope and have no idea if it takes that into account.
Figured out your problem. Try using MPH...I've used garmin connect for my tracking, both using cell phone tracking apps, and a proper GPS watch. GPS on it's own is able to determine your elevation (remember it's triangulating or multi-angulating off satellites, so it measures how far you are away from each satellite, and calculates where the spheres line up).
Nevertheless, garmins website corrects for elevation using USGS data (as far as I know)... So it SHOULD be calculating for actual speed on the slope, not just horizontal speed.
That said, and I've said it before: Phone GPSs suck. STOP COMPARING TOP SPEEDS! In my experience, phones seem to vastly over estimate the top speed for the day, and it's wildly inaccurate. I experienced 10-20 km/h swings in top speed from day to day.
After switching to a GPS watch, my speeds dropped to a more reasonable level, and the difference between days on the same hill dropped to about 5 km/h (which seems reasonable to me).
GPS phones are great ways of tracking total distance, and number of runs for the day, as well as showing your buddies the route you took if you split up. But I think they're useless for comparing top speed... :dizzy:
Ah the states, some of the most advanced technology in the world, but the general population hasn't caught up yet! :yahoo:
2 lane highways are usually 100 km/h in AB, and highways are 110 outside of the cities! :yahoo: I usually cruise at 125 without an issue...I like metric. I wish everyone here used it. Working in medicine that's almost all I use throughout the day. I just wish the speed limits in Canada And other 3rd world countries were higher than 80-100 km/h. Fucking granny driving everywhere. I'm surprised I didn't get any tickets while driving around up here. I was doing like 140-150 everywhere. Makes me feel like I'm really hauling ass though.
This used to be the case but it really is not so much any more. As an instrument rated pilot, I use GPS for instrument approaches. Few years back, a GPS approach was considered a non precision approach because the system did not calculate vertical height and motion well. The average GPS approach had minimums that were on par with an NDB approach ( the least accurate ).
This is no longer the case as both the processing power of GPS units and the improvement in the satellite coverage has increased. A GPS unit, even a handheld or cell phone, has much greater accuracy and the panel mounted units are near perfect. Now with ground based WAAS (wide area augmentation system) these units now allow a precision glide slope approach.
As a result of aviation driven accuracy, all GPS units including cell phones have seen a huge improvement in accuracy and this includes major corrections to this vertical speed error. Today, your small handheld units are highly accurate and the deviations small.
There still exists some potential for error however and that is dependent upon direction of travel and your location on the plant. The GPS satellite constelation is in geosynchronous orbit around the equator. The farther north you are in the northern hemisphere, the lower the azimuth is of the signal and this makes it a little tougher for the unit to calculate vertical height than near the equator. Terrain will also cause more signal degradation. If you are at a high northern latitude in say the PNW on a north facing slope, you loose some coverage from some of the satellites due to geographical interference. It's the same reason your XM radio will cut out in the mountains or in heavy timber. This lapse of coverage intermittently will create errors in the unit and throw your speeds off. Ride a south facing slope in the northern hemisphere and you're golden.