Virtual Passage Planner
Has anybody used this programme and actually put the results of the predictions to the test?
I have used it for a little while now but really just as a what-if tool for fun more than for any real purpose. Now I find myself planning a significant voyage and I start to wonder whether the predictions are any good.
Not that I have any reason to believe they're not. It's just that on my last ocean crossing I used an Admiralty routing chart for info and weather predictions and the information on the chart was not correct at any time throughout the entire 6500nm voyage.
The voyage I may be contemplating is somewhat hazardous and is VERY weather dependant and the sources of weather data in the area are a little thin on the ground. And the predictions I'm getting appear too good to be true.
I wonder whether the wind and current data on VPP is derived by data supplied from the British Admiralty. It could be NOAA. I then get to wondering why it would be any better/worse.
So . . . does anyone believe the stuff that VPP tells them - more importantly, do you have good reason to believe?
Ask the question on the SSCA board. I know there are some users there and several have crossed more than one ocean using it. Also there is an existing thread on this topic so do a search.
I've got some friends who swear by VPP2. I'd point out that the historical data it is based on is just that, historical data, and while it may be accurate a majority of the time, it isn't always the case.
|All times are GMT -4. The time now is 11:58 PM.|
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012