Originally Posted by Mark424
Matt, can you comment more on what the G2 upgrade entails? I've only seem passing references
to it. Any word from the street (sea) on how good the G2 improvements are in real life? Thanks Mark
had my first sail with the G2 upgrades last week - a 100 mile passage
from Santa Cruz
de Tenerife to Santa Cruz
de La Palma around the top of Tenerife. For anyone that knows this area - coming around the top of Tenerife goes straight through an accelleration zone where the wind
speed may increase up to 100% or more. Well it didn't disappoint - we left the pontoon in about 8 knots and once we left the harbour we turned north into winds up to 26 knots on the nose and associated seas on an underlying 1 m swell. G2 did not disappoint either.
I turned the generator
on just before we left the harbour so I had full access to power. It took me a little while but I balanced the power usage to generator output and motored into the 26+ knot
winds for several hours at 5+ knots, pushing up to 6 knots at points - This was at 90 amps per motor which is not full throttle (even without the boost).
We turned west around the top of the island and motor sailed in 5-8 knot
winds right up the rear (not the north easterlies promised - is God on vacation
?)gusting up to maybe 11knots for three hours on batteries alone after getting the battery level up to about 95 percent.
Later in the night, after the generator had run for about 2 hours on automatic cycle in mode 5 the generator switched off and we again got 3 hours out of the battery at about 37.5amps per motor - we would have only got about 15-20 minutes out of G1.
I did not try the boost button as it was not necessary (would have been good to take on the fast ferry
but Karen would not let me).
We also sleep better at night now with the charger
switches and the throttles are alot better to work with - will be rethinking the need for getting tachos - not sure on that one yet. The engines now engage as soon as you move out of nuetral and it is easier to move around the marina.
The only issue we are having is that in our 220v boat, the chargers draw 16 amps or more and half the marinas
I have been in only have 16 amp power outlets. This means I can't run the chargers and any 240 v first up when the chargers are in full cycle. I am talking to my broker
about this to try and work out a strategy to manage this - at worse I can run the generator every now and then to fully charge the 72v - not a major problem - just an annoying hassle and more expensive than planned as we are paying for shore power
All in all I am impressed with the G2 upgrade - I will need to be abit more like a yottie and watch my house batteries now as the 12v chargers cut out when the 72v gets down to 80% which actually stopped us motor sailing for over 3 hours on batteries alone on the second session mentioned above (but because we are new at this it was probably more cautionary then necessary - we switched the generator on at watch change after Karen and I discussed it).
Hope that gives you a bit of an idea - once I have given it full throttle and used the boost I will update you - this will probably be when Karen is asleep and I can challenge the ferries around here to a race
. Check them out - Fred Olsons fast catamaran
ferries their motor wash would go half way up my mast!
Ps. I have had some very complementary comparisons of my boat here in the Canaries
- A very nice french man visited our boat for apperitiffs one evening after spending the prior evening on a 48ft Fontaine Pajot - he was a monohuller from a very nice Amel 54ft - he liked our boat and said the accomodation was larger than the 48ft FP - unfortunately they left before I could verify his comments - it could have been the offer of Pastis. Also here in La Palma we pulled up next to a L380 and the owner commented that he could not believe that just 4 foot could give you such a bigger boat.