The ruckus at the Wooden Boat Festival tonight was great fun. A highlight was this new promo video by the brilliant Zach Carver — 2019 R2AK promo video — which me helped explain what caused the exceptionally windy start to the 2015 Race Towards Alaska.
We also learned that 2019 will be the last R2AK, and that in 2020 things are going to change dramatically! But Jake and Dan won’t reveal how… It’s going to be a surprise!
A recent capsize talk and demonstration by Richard Woods at the 2016 Wooden Boat Festival inspired me to finally upload a long video my son, Liam, made of Thomas and me successfully righting a turtled Wharram catamaran. As part of our training & preparation for the 2015 Race to Alaska, we intentionally capsized our modified Hitia 17 pedal-sail boat in Lake Washington (Seattle).
The video could have been edited to be more succinct (Liam was just beginning with iMovie), but for the connoisseur, the grueling details may be appreciated. If not, or in case you’re interested in a specific topic or stage of the exercise, here’s a:
Table of contents
Getting the boat from the Sail Sand Point storage yard
01:48 Packing gear at the top of the boat ramp
08:22 Thomas tour of items stored in port hull
09:00 Scott tour of items stored in starboard hull
11:45 Discussion of righting line placement
12:50 Getting into dry suits
13:30 Putting boat in Lake Washington
14:00 Pedal-sailing to the capsize location
16:00 First attempts to capsize
17:30 Re-thinking how to cause the capsize
19:00 Re-positioning under pedal power
20:00 Second attempts to capsize
22:40 Both Scott and Thomas back aboard (overturned tramp), organizing lines [immersion time was about 2 minutes]
24:15 Recovery attempt 1
24:50 Recovery fail 1: slipped off keel and fell into water
25:30 Recovery attempt 2
26:30 Recovery fail 2: not enough leverage at middle of keel
26:55 Opening hatch on port main hull?
27:00 Re-thinking strategy
Successful recovery (takes 2-3 minutes)
27:30 Standing on bow
27:55-28:05 Rapidly venting air as water enters hull
29:00 More venting as bow quickly sinks and upper hull starts to rise from water
29:15 We move back towards center of keel from the bow (gaining leverage)
29:33 Trampoline is vertical
29:38 Boat is back upright (with cabin coaming ~20-30 cm above water line, rail in/near water line)
29:50 Reboarding on the hull that’s lower in the water
Pumping/bailing out begins [lasts at least 4 minutes]
30:05 Thomas starts pumping with hand bilge pump while Scott cleans lines and gets bailer and bucket
31:10 Using bucket to empty port hull while sailing to beach
32:20 Using bailer and bilge pump now
33:45 Back on the beach (with “dry” bilge)
34:00 Shoreside thoughts
Looking at these time stamps (and recognizing that Liam may have edited out some portions of the continuous footage) it looks like the righting process could be reduced to about 2-3 minutes with practice. We were immersed for about 2 minutes and we spent at least 4 (maybe 10?) minutes pumping/bailing the flooded hull dry.
Here are some frame-grabs:
A key question is whether it’s better to remove weight from the up-going hull, or add weight to the down-going hull (by flooding it). Would it be worth it to stay immersed much longer, open up the hatch on the hull to be lifted, and remove all heavy gear from it (if that can be done without inadvertently adding weight in the form of flooding water!)?
Things we could do differently next time:
Try capsizing using a halyard (thereby leveraging the mast like a gin pole)
Try recovering with one person on the other’s shoulders
Try water bags and dual righting lines
Try using the mast or a pole for righting (e.g. like a gin pole)
Try flooding a hull by standing on stern, rather than bow (and also flooding further/faster by having both sailors stand on bow, or in a bow loop)
Is it worth it (or even possible) to put enough flotation at the mast head to prevent turtling?
Is it helpful to remove rigging (e.g by freeing snotters and halyard) and/or to “lower” the sail (lashing to tramp, for example?)
Is single-handed righting? Possible?
What if both hatches are open during capsize? Does water flow in/out of hulls such that it could be righted in any downflooded initial condition (e.g. breaking waves fill both hulls, then flip boat? Or is an air vent in each hull side needed?
Thomas just called in a report (for Tues June 28, 2016) and I recorded it via speaker phone. Hear about his day of light-wind sailing among other Racers, his plans for the night, food and water status, VHF/traffic considerations, and more.
The recording is about 16 minutes long, including come conversation with me towards the latter half. He also texted this photo to accompany the recording.
Last night Thomas and I gave a talk about the Race to Alaska at Sail Sandpoint. It was a great crowd, including some of our co-conspirators: Matt Johnson, Eric Hvalsoe, and Tim King. If you’re interested in some background on the 2015 rules/route, a few slide shows of our build, gear, training, and race experience, as well as a distillation of the 2015 results — here is an on-line version of the presentation —
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