Pat Anderson":escv1usi said:
To me, the dedicated chartplotter is a dinosaur, bound for extinction. But then there are those who insist on using paper charts, so people give up what they know and grew up using very hard!
Well...that's a bit of a stretch.
I'm all for tablet navigation and trip planning. Fantastic stuff is available now, and especially when considering price/redundancy - it makes a lot of sense whether one has a dedicated chartplotter/MFD or not. I've played with a few, but prefer Navionics as it syncs pretty seamlessly with my Simrad NSS and uses the same charts.
However, as a complete replacement for a dedicated MFD - no way. For me, anyway. One word: Integration.
I can do none of the following natively on a tablet:
- Tap two points, autoroute, tap the new route and tell an autopilot to follow it.
- View AIS data. Yes, I'm aware you can jump through hoops to get AIS displayed on a tablet, but that involves buying additional expensive equipment. Even then - you can't tap an AIS target on your tablet charts and hail it on your VHF. From what I've seen, most tablet software that supports external AIS has limited, if any collision avoidance built in - one of the nicest parts about having AIS on modern MFD's.
- Depth. Again, as Dr. Bob already alluded to - you can buy additional components for wireless depth sounders. Yet more configuration, multiple vendors and expense, no standard integration as is provided by N2K. And, for me - I'll not trust anything wireless in my primary navigation components. Hard-wired network/signal cables are far more simple and reliable.
- RADAR. I'll not do any extended cruises without it. And, even if you decide to buy a standalone RADAR unit to compliment your tablet - you can't overlay the RADAR scan on your tablet charts.
The functionality provided by dedicated/integrated systems greatly exceeds that of tablets. These functions may or may not be important to you, and for many the features provided by tablet navigation may be adequate - but I don't see the gap narrowing any time soon.
Lastly - tablets are not waterproof. While inside the cab of a C-Dory, perhaps that's not a great concern. At the helm of an open cabin C-Dory like a 16/19 - a bit more risk. Regardless, given how portable they are - most folks tend to use them away from the helm, and exposure to the elements or an "oops" into the drink is possible. They're also a much easier target for theft than a permanently installed MFD - grab and run.
For me - the tablets serve as excellent trip planning tools, a second/alternative view of where I'm going, or in the case if a failure on my dedicated navigation instruments - redundant primary navigation.