Raymarine E120 Chartplotter

[ QUOTE ]
Pilots and Accountants dont seem to mix

[/ QUOTE ]You have obviously not seen my 747 pilot friend and me together; we have shaken up some major cities.... Let's not go there....
 
Just to put a lid on this......the 747-400 is rather long in the tooth now and indeed the 777 is getting that way. It's been a long time since I flew the 400 1989-1997 and I recall now that it uses IRS and not GPS. The 777 uses GPS and I guess all modern planes do. Your pilot friend has probably not flown the 777 and may not wish to after the crash!
The flight decks are almost identical--the extra 2 thrust levers on the 400 a bit of a give away! The Nav displays look identical too but on the 777 the GPS symbol means just that---GPS is being used for nav.
Lets leave it there as far as the aeroplanes go. As for navigating boats I find if I treat it like a 777 its a piece of p**s /forums/images/graemlins/smile.gif
 
agreed, and I just might have something to add a little later on the 777/GPS debate, from a current 777 pilot.


We are in the proces of fitting and E80 at the helm + ST70 and 15.4 in laptop at the nav station running rns6.0 software. All on seatalk, including AIS, radar, Ray240 with loudhailer etc.
Paper charts at the moment are limited to Eastern US + Atlantic Pilot charts. We also have those electronically. Navionics Platinum for max detail available. The rest will be mainly up to date Pilots for wherever we intend to go. Spare handheld GPS, just how much more do you need to carry on a yacht.
 
Interesting! I also am an airline pilot but I won't comment on GPS except to say L J is incorrect /forums/images/graemlins/smile.gif.
I have Navionics electronic charts for my E80. The E80 is at the helm. Below The output from the E80 goes to my TV and I have a Raymarine keyboard below. This way I can put in waypoints, review a route or generally do my planning below, so at the helm I just monitor the situation rather than actually put in new waypoints. I am taking paper back-up charts, but not a 'full set' otherwise what's the point of the electronic kit? I have to stop myself 'over-ordering' the back-up charts, the old 'this might be handy' syndrome. I have as up to date pilot books as I can get, sufficient small scale charts for general navigation and a sextant which will probably remain in its case. /forums/images/graemlins/smirk.gif
 
I hope Jessie has calmed down. Apoplexy is always alarming.
Dylans Zen like calm was most reassuring.
I will fit an A65 in the cockpit soon although paper charts are always open on the chart table.
Once you learn to navigate with a pencil behind your ear, it's hard to give it up.
I find the laptop too power hungry to use all the time.
In bouncy weather when short handed it's not always convenient for the captain to
spend much time below, and a screen visible from the helm must be useful.
However I take somebody's point about night vision being adversely affected, no
doubt the screen can be turned down if necessary.
Mind you I have had several close encounters with large high speed gin palaces in
broad daylight. I shout "wash" to alert the passengers!
I pressed my nose against the bridge back windows on several trips from Newhaven to Dieppe, when they were using the 38kt fast ferries. I could see no paper, only rows of screens.
Mind you they did reassuringly seem to be keeping a visual lookout..
 
I would not worry too much about the night vision issue. My SL631 has a 'night' mode which switches the display to blues and reds and I expect newer Raymarine plotters would do the same. We have it in the saloon but coupled with reducing the brightness to about 2% this makes a big difference (and about halves the power consumption!). We also just slip the cover on when we want it really dark.

In fact power consumption is another factor to consider here. On our cat, which has a very well lit saloon, I rarely need to increase the brightness beyond 40% - if you have the screen outside you'll need it on full brightness much of the time which will use more power in the day time (2 amp difference on our 10 inch display).
 
Yes David, I have calmed down but I don't think I will ever reach the Zen like stage.

I have to openly concede that I was partially wrong. Having discussed this issue further with my pilot friends, I now understand that the discussion going on in the commercial aviation world is not that different than the views on chartplotters vs paper charts in our sailing world.

If I understand this right; GPS cannot be used as the 'primary' navigational aid on a commercial aircraft. The only system available today to fill that function is the inertial (gyro-based) systems and they are therefore mandatory. However, there are also GPS receivers on many commercial aircraft that can fill supplementary functions. Typical GPS uses are the initial input into the inertial navigation system and the 'moving map' application visible to the passengers. Now, the use of the words 'primary' and 'supplementary' gives the airlines some leeway in how they configure their aircrafts. As long as the inertial navigation systems are used, there is nothing that stops a pilot from using the GPS system (if available) as well. However, if something goes wrong the pilot have to make sure he/she can still prove that the inertial systems where the ones used for 'primary' navigation applications.

The GPS system is presently being upgraded with a new capability called 'L5' specifically for aviation navigation. This upgrade is planned to be completed by 2015, at which time it is possible that FAA will allow GPS systems to be used as 'primary' navigation systems.

Sorry for any confusion caused (or still to be caused) by my misunderstandings.
 
Sorry, but couldn't resist posting this... Last trip /forums/images/graemlins/grin.gif
1166.jpg
 
Hi, I am installing a C120 behind the windscreen on our boat, we tend to navigate with charts there anyway. I could not extend to the E series. Just a thought, but do you keep a log, as for me if it all goes brown this is your best source of info after eyeball. Your position cannot be to far out if kept up to date.
 
Interesting post, if not a little diverse.
I have a combined Radar Chartplotter (old JRC1800) at the helm. It also displays all other boat info if required, like mag/true headings, log speed, depth, wind etc so a bit of redundancy over the Navman kit and the ST4000 autopilot displays.
I use a chingraph card plot for radar if required, and to be honest, crossing the worlds busiest TSS intersection regularly, I have never needed anything more sophisticated. I flick between 6 and 12 miles as the 24 mile setting is too coarse.

Down below I have a full repeater instrument and Navtex for all info, and do the paper chart plot and the log book once an hour. Takes 2 mins. I can if required, hook my Laptop p and create a route/passage plan and upload it, but generally, I do a point and shoot route with waypoints up at the helm. I do this on paper first in the warm down below, so I dont have much to think about when entering up in the cockpit.
The display is set to level 1 brightness at night and does not distract, but as it is old tech, the use of the Raybans during the day make the display hard to read in daylight, so I have to slip my normal specs on for fine detailed work.

Whatever works for you, I guess. Wish I could afford a fully whizzo Raymarine setup, but hey ho.
 
Hi emnick.
If I am on passage and out of sight of land I keep a record of my distance to the next waypoint so that if I lose the electrics or GPS goes down I know my position. I have no chart table, couldnt see the need for it so told builder to leave it out. All my instruments, ST60 system plus Lowrance 3500C plus old Garmin 126? are mounted in the cockpit.
Below I have a Nav6plus Navtex which also repeats all the instrument data and also keeps an electronic log of all the data every 15 minutes. This is by the galley and I can keep an eye on things when making tea.
I have a set of charts (in splashproof covers) and they are marked with the waypoints and routes which are stored in the GPS sets. If the GPS is lost I can quickly return to life in the 1980s. Regards.
 
Er what was the question????. If you do proper charwork at the chart table and plotter,all you need is a cheap (NASA) GPS repeater in the cockpit with a rolling road display. You have to beware of cross track error however but that will show up as a change in bearing to the waypoint.
Save money and get a nice C80
 
Surely radar has to come into this discussion too, and I dont mean on aeroplanes !!

If you want to see the radar display in the cockpit, there are then additional benefits of having a combined plotter/radar unit like the E80 above the helm which seems to be very popular.

On our previous boat I put the seperate radar display under the spray hood so that crew could focus on that and that alone, as well as eye-balling targets as vis permits.

On current boat, it has an original autohelm mono radar display above the chart table which is fine, as long as you have enough crew to helm and also eyeball targets from the cockpit. On watch alone, or with just two people, it can become a constant up and down the companionway exercise.
 
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