Saturday, April 30, 2016

Mexico - Marquesas Passage - Stats/Notes

GPS track from Baja to the Marquesas, Note position relative to other territories.
(TC)
Just for the record, here are some stats on the trip:

Route:                     La Paz to SJ del Cabo, then direct Fatu Hiva, Marquesas
Distance Traveled:    3000 nm (taking an average of 3 diff stats: route dist:                                                      2768; GPS track 3349;and Knot log 3239)
Dates:                     2016, Apr 3 (Sun) to Apr 21 (Thu)
Duration:                 18.2 days (436 hrs) (17 days from Cabo)
Avg Boat Speed:       6.88 kts
Avg Dist. per Day:    165 nm     (lowest = 140 nm; highest = 210 nm)
Highest TWS:           35 kts
Engine Runtime:       102.2 hrs (equals 4.2 days, or 613.2 nm @ 6.0 kts BSP, 
                                               or 20% of the total dist,)
Genset Runtime:     19.1 hrs (mostly to run the (1) reefer, (2) autopilot, and
                                            (3) boat electronics powered on for 24 x 7)
                                            (Avg time = 1.4 hrs /day, discounting engine hrs
                                               (when the genset doesn't run), for 14.0 days)
                                            (Est. Avg AH / day = 286 (220 A for 1st hr, 
                                              165 A for 0.4 hr)
Solar Runtime:        Daily when sun present
                                        - (Est Avg AH / day = 120 (est. 8 hrs sun / day x
                                             est avg 15 A /hr = 120 AH)
                                        - (max solar capacity = 410 watts, or 34 A / hr, 
                                             but I de-rate it to be realistic/conservative)
Beers Consumed:    <12    (Not much desire for this while on passage)

We used a lot of DC power on this trip, more than we typically do. I estimate the extra was due to the autopilot driving most of the time and having to work hard in the challenging conditions. Also, I was not too frugal on power usage because I enjoyed the benefits of it and our engine, genset, and solar systems were running well enough that I expected they could handle the load - and they did.

Breakages:
In general, we luckily had few failures. Other boats had problems with autopilots, radars, and torn sails,
1. Mainsail de-lam and tears - We expected some of this because the sail needs replacement, which we've been preparing for. Still, the sail got beat up pretty hard in the jerky swells and gusty squalls.
2. Jib sail chafe - The foot of jib chafed on the forward part of the pulpit; needs restitching. The new jib should be cut higher in order to miss the pulpit altogether.(Follow up - chafe not extensive - repaired)
3. Lots of water leaking into the cabin from around the mast - Not sure why yet - looks well sealed. (Follow up - root cause was due to halyard blocks crushing the deck's balsa core. Water entering through bolt holes. Deck needs solid repair).
4. Cabinet drawer frame broken - This cabinet held a drawer of heavy stuff. In the constant healing, the frame/facing broke and no longer holds the drawer. Needs repair. (Follow up- the facing was originally underbuilt. It has now been reinforced and repaired).
5. VHF remote microphone - This Standard Horizon mic under the dodger lost its display and buttons functionality. Speaker and lights still work. (Follow up - broken wire found in back of connector on panel - repaired).
6. Dinghy lifting ring tore off - (in port) - Looks like a mfg defect due to not enough adhesive. It's a 3-day repair process with 2-part hypalon adhesive, sandpaper, and toluene.





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