The COMPLETE OCEAN CROSSING CHECKLIST - PART II

The COMPLETE OCEAN CROSSING CHECKLIST - PART II

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00:00
[Music] welcome back guys so we need to continue with our checklist for preparing for an ocean crossing let's get into number five [Music] navigation and communication uh i'll just tell you what i'm using and
00:42
i think it's fairly typical of what people use these days um i'm using a raymarine chart plotter uh obviously it's one of the big brands there's you know b and g and there's garmin etc they all do the similar thing and there's only about two or three or four chart options electronic chart options you can use navionics is a big one and cmap is another one now the big question is do you rely on electronic navigation
01:12
only or do you need paper charts as well it's been many many years since i've bought a paper chart however i collect them i still carry them most of mine actually photocopies that i've picked up from decades ago and all i really use for navigating for the paper chart is a small scale like i'm talking about a chart that covers an entire ocean and then once a day i'll plot that's usually noon i'll plot my noon position with a pencil and a ruler on the paper
01:45
chart if i lose all electronics at least i have the latest position as you know less than a day old and i can take up a dead reckoning position uh sorry uh track from there to the nearest enroute port that i wanted to go to primarily i'm using electronic charting i've got the raymarine i've got the c map subscription on that and because navionics
02:15
is quite cheap on the ipad that is my backup electronic charting for about 70 us dollars i think you can have you know quite a section of the world remember though i've heard of this happening before some novice navigator has bought the navionics subscription on their ipad and then just headed off not realizing you've got to download the areas that you want
02:47
have a look here and i can show you that this darkened area is not downloaded there is no detail under here it's well there is actually but it's a base map this brighten area is downloaded so we have good detail it's happy so make sure and it takes a quite a long time it could take a few hours to download the uh the charts other than just the app
03:18
now the ipad although it says it has gps it doesn't really it uses the mobile network to really ascertain its position so you need a dedicated gps that i think it has one in there but it's really quite useless uh so i bought this for 100 us i bought this little garmin gps unit and through bluetooth it connects to the ipad and is very precise it's good actually and i keep this inside out of the
03:50
weather and it can still pick up enough gps signals okay so for electronic charting i've got the uh c-map the navionics and as a backup to those i've got the opencpn on the on the windows computer and it's running old cmap charts charts from 2009. it can also run raster charts and as well so that's actual copies of paper charts
04:20
that we can put on this program and of course this means i have redundancy the main gps is in this raymarine here's another gps i have the old plotter still working has a gps my computer has a plug-in gps and the ais has its own gps so it's pretty important to have redundancy at least three gps's on board all right what
04:52
about communications for short range communication the vhf is here and it's accessible and listenable from the helm which is really handy this is a special unit where the head is in my hand which is always great uh the actual radio is called the black box this is an icon black box unit the black box is up near the antenna but this is the head
05:25
which is right at the helm station it sucks if you have to leave the helm to go downstairs to answer a call at that ship coming at you and you can't you know you need to be able to see and speak at the same time let's have a look at the hatred okay so in on an ocean passage you are a long distance from anywhere um may be considered a little old-fashioned but a hf radio is a great backup communication device
05:58
and some people still primary communication device or to get weather there's various stations around the world which broadcast weather on hf um can be a little hard work understanding it writing it down because it's given to you in latin long form and so then later you've got to work out oh it's got nothing to do with me you know like to get your section of uh air uh weather can be difficult that way if you put a
06:28
pack to modem paired with the hf radio you can get basically downloadable weather like grib files so that's what hf can be used for it's also a great way of keeping in touch with other friends who are out in the middle of the ocean at the same time our main form of communicating is through the iridium go so this unit including the external antenna which is really
07:06
important because this little antenna here is not very effective you need the external antenna for a strong signal we use this with a predict wind subscription and we get weather twice a day predictwind updates its weather twice a day and we download it twice a day now depending how big area you're requesting you use the the laptop to request it
07:40
and it can take up to an hour sometimes to download and it'll disconnect and reconnect 10 times maybe in that hour there's one predictwind subscription that is unlimited data now that sounds great except the speed is apparently they say 10 times slower than dial up network speeds so it's really slow i think it's about 2.4 k off the top of my head so
08:12
it takes a long time to get any data there are cheaper packages that predict wind offer um but it's i think the lowest one is five minutes of data i i'm telling you it takes nearly an hour to get one forecast so and that that's probably a seven day forecast over half an ocean you know so you really need the unlimited data package and for that you uh it's about 140 140 us dollars
08:44
per month the trick is to buy multiple sim cards so inside here is a sim card and you can activate that sim just before you start your ocean passage make sure everything's working before you leave get some download get some predictwind get some weather forecasts via satellite make sure it works when you get to the other side of where get to the end of your passage
09:14
you can get online and cancel your sim you probably only paid one month for that uh service of having weather at your fingertips like that it also includes i think it's 150 minutes of talk time you can call your mom happy mother's day now i gotta call mine uh i think it's unlimited sms so yeah it's a bit expensive but if you cancel
09:48
that sim as soon as you're not using it and you've got more sims sitting there waiting they're only ten dollars each sim so just have a bunch of sims waiting for your next passage but the iridium is our primary communications and it also gives us our weather we need redundancy for our communications we've got the vhf at the cockpit there this unit's not only hf it's uhf and vhf and hf so
10:20
all i need to do is change the plug the antenna plug on the back of the radio and i can use that as a vhf and we also have the handheld vhf which comes with us in the life raft the iridium go is our primary long distance communication and email and weather service the backup to that is the hf where i can get weather i can even get uh a phone patch through
10:52
a ham radio operator this radio is actually a ham radio not just a marine hf so that's the key to nav and communication is to have backup to have redundance cool there's some other equipment with regards to navigation and communication which is pretty important one of them ais in fact in some countries
11:24
is a legal requirement every boat every well a sailing boat must have ais in singapore and thailand off the top of my head require ais and as the world becomes more and more regulated the requirement will spread uh from a cruising point of view it's actually a fantastic safety device especially for short cruise sailing we can set alarms on the ais to warn us if there's any
11:56
traffic approaching now of course not every boat has ais out on the oceans but the big hard ones generally do how about radar now out on the ocean once again with short crew radar is a fantastic warning device i recommend radar but it's not critical it is a great safety device when making a crossing especially the modern radars are very
12:26
low power consumption and when you're a bit sleepy i set the radar alarms the guard zones on the raymarine equipment and any reflection that comes in there and i'm not talking about just weather although that is a great one if there's a bit of a squall or a rain shower ahead and you cannot see it at nighttime that's what the radar is for not only that but also if there's a consistent reflection out there
12:56
it might be another vessel so both ais and radar i would recommend but it's up to your budget okay i think that just about wraps up our navigation and communication finally stopped raining weather services on passage you need to get updated weather at least
13:36
daily worst case every couple of days you need fresh weather now i've already talked about this a little bit in the navigation communication chapter but i just want to talk about specifically getting weather there's a couple of options these days the old-fashioned way of using the hf radio you can listen to weather broadcasts but there's less and less of that around these days unless you're just in a specific area
14:07
like in the caribbean they still have hf broadcasts on weather in the caribbean but doing an ocean crossing there's less and less of that a better option is to connect a pact or modem to your hf radio and then subscribe to a service which sends you an email with group files for the area that you're in this is quite a usable scenario but it still relies on hf radio wave
14:39
propagation and that's so dependent on sunspot activity and weather in the area there is another option and that is a paid weather router and that's a guy or a gal sitting at a computer he may be a meteorologist or just an experienced sailor and expert on the weather and they will give you advice on where to reroute and give you the current weather conditions to be expected we've
15:11
chosen to go with the iridium go predict wind combination not cheap but very reliable as i mentioned in another chapter you're going to need the unlimited data package because the data speeds are incredibly slow and twice a day we download predict predict wind weather and it can take between 30 minutes and one hour to download a forecast i choose predictwind because it offers
15:42
four models four weather forecasting models it offers the american the noaa model the gfs and it offers the european model plus predictwind has two models of its own so it's really nice to be able to compare each of the four models and if there is a definite predominant pattern i'd choose that one so when you're underway and making a long crossing
16:11
you have to be prepared to re-route for better weather conditions whether it's a low pressure system coming at you you want to deviate away from or take advantage of some stronger winds from behind in a different direction so the shortest route from a to b may be straight line but it's not the quickest route you want to keep that wind otherwise you're not moving very fast so in summary you need to get your
16:44
weather somehow and remember it's only a forecast and be ready for some surprises because they're not always right yes i know we only got two more topics covered we have worked out that it's going to take another two videos to finish the list i'm sorry about this but uh there's so many important things to discuss i don't leave anything out so we'll see you next week for part
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three of preparing for a ocean crossing remember like subscribe and share [Music] cheers [Music] you

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