On a top mini or IMOCA - what does the full power system look like today.
I am told that some use fuel cells (methane?) - is that purely a charging source that runs thru lithium batteries, or do they power stuff directly off the fuel cells? I see "the EFOY marine fuel cell acts as a battery charger, monitoring the battery voltage. When the voltage drops below 12.3V the EFOY marine fuel cell will start charging. Once the battery is charged to 14.2V it will enter standby mode." - is that how the IMOCA use it? Does it make sense to reduce battery bank size - eg is the energy density higher or lower than lithium?
What is the most common/popular type/mfg/model for the fuel cells and lithium batteries? Are they mostly using hydrogen or methanol, or methane? How easy is the fuel to get?
What are the downside of the fuel cells (other than cost) - are their safety issues?
For a mini, how do the fuel cells compare to a honda1000 (power to weight), which mini's used to use for longer races?
Someone, not me or Beth, signed into my gmail account this morning. I have changed the password. The question is should I do anything else? There was nothing in the account since I download (and delete) all my e-mails to my pc and ipad.
I have no idea who or how they got the log-on information. The IP address from google says its a comcastbusiness.net IP, and comcast is our internet provider. Info on the long-on below:
9:20 AM Signed in from IE (Windows) Reisterstown, MD, USA
He had been injured but was recovering from that. He was struggling with energy management but seemed too be able to eke thru. The final straw seems to have been multiple mainsail rigging problems:
"The boom end failure is a substantial one.
The jury rigged mainsheet arrangement looks very prone to chafe.
That, combined with the jury rigged reefing arrangement...."
Too bad for the guy . . .he really tried hard to get it right . . . hiring "the best" to help him (designer, builder, surveyor) . . . . and spending 'whatever it took'. But it still turned out to be inadequate to survive the ocean.
He is going to pull into cape town and ship the boat home.