DB Reports

About the sea

Quote

"Eternal Father, strong to save, whose arm has bound the restless wave...

O hear us when we cry to thee, for those in peril on the sea."

 William Whiting

 

"Every small vessel venturing offshore is a lonely entity, face to face with the most elemental force on the planet earth."

    Carleton Mitchell

 

"The sea drives truth into a man like salt."

 Hilaire Belloc

 

"The time to take measures for a ship's safety is while still able to do so. Nothing is more dangerous than for a seaman to be grudging in taking precautions, lest they turn out to have been unnecessary. Safety at sea, for a thousand years, has depended on exactly the opposite philosophy."

  Chester W. Nimitz,
Admiral, U.S. Navy

 

"At sea, man is always at war with the elements."

 Anonymous

 

"When the wind rises to Force 10 or more, and the gray beards ride over the ocean, we arrive at totally different conditions, and for yachts it is battle for survival, as indeed it sometimes may be for big ships."

     K. Adlard Coles

 

"The fallacy lies in expecting anything at sea to be as it `should be'."

     Webb Chiles

 

"In the 1979 race, the sea showed that it can be a deadly enemy, and that those who go to sea for pleasure must do so in the full knowledge that they may encounter dangers of the highest order."

Official Inquiry,  Fastnet tragedy of 1979

Sea Anchors on Catamarans

S/C-6B Catamaran, Crowther

Leave a comment

S/C-6B

Catamaran, Crowther

43' x 25' x 7.5 Tons

18-Ft. Dia. Sea Anchor

Force 10 Conditions

 

File S/C-6B, second file (see S/C-6A) obtained from Josh Tofield of Tucson, AZ. - SAME VESSEL - SAME SEA ANCHOR - SAME BRIDLE & TETHER DIMENSIONS - Deployed in a storm in deep water about 800 miles northeast of Hawaii with winds of 50-55 knots and seas of 25 ft. - Vessel's bow yawed 10° - Drift was 5 n.m. during 72 hours at sea anchor.

This is the second file involving Ariel. In the previous file she successfully rode out Force 8-9 conditions on the same parachute with a 250' tether. In this file we see that the 250' tether was clearly too short when Ariel ran into a much heavier storm on her way back from Hawaii. The 250' x 3/4" tether was not long enough to provide adequate shock absorption, as a result of which the boat took a severe pounding. Ariel's tether should have been at least 400' in this instance (the general rule of thumb being LOA x 10). Transcript:

Ariel departed Hawaii 11/10/91 with delivery skipper aboard. He has documented over 100,000 miles in deliveries for Compass Yacht Services alone. Approx. 800 miles NE of Honolulu a rapidly moving, intense LOW which was squeezing against a massive hi-pressure cell caught Ariel in the exact center of reinforced winds. Barometer dropped from 1018 to 1002 in 3 hours! (Weather Fax attached). Wind started one hour later and built to Force 10 where it stayed, never dropping below Force 9 in 48 hours. Waves were 25' (conservatively measured from the back of wave height and not from the troughs). Bridle (3/4" nylon) chafed completely through & had to be replaced with 5/8" backup bridle. Later one leg of the 5/8" bridle SNAPPED in the center when hit with very large wave, throwing Ariel backward, shearing the foam & fiberglass off of one rudder completely, and leaving only half of the other rudder (which later broke off). Crew eventually added 100-150' of anchor chain to the 250' of 3/4" nylon tether and rode out the rest of the storm.

Recovery, using the "partial trip line" was very difficult. Engines both out because during the storm, while motoring up to relieve pressure on bridle (while changing it) a large wave submerged entire stern, forcing water up exhaust system and drowning the engines (exhausts 2' above waterline under aft bridge deck !!!!!) Jury rigging done after storm passed. Ariel was then sailed 1500 miles to San Diego. Moral of the story: USE LOTS OF PRIMARY TETHER! What is adequate for Force 9 is not adequate for Force 10!

Sea Anchors on Catamarans

S/C-6A Catamaran, Crowther

Leave a comment

S/C-6A

Catamaran, Crowther

43' x 25' x 7.5 Tons

18-Ft. Dia. Sea Anchor

Force 9 Conditions

File S/C-6A, obtained from Josh Tofield, Tucson, AZ. - Vessel name Ariel, hailing port San Diego, catamaran, designed by Lock Crowther, LOA 43' x Beam 25' x Draft 3' 3" x 7.5 Tons - Sea anchor: 18-ft. Diameter Para-Tech on 250' x 3/4" nylon three strand tether and bridle arms of 75' each, with 5/8" galvanized swivel - Full trip line - Deployed in a tropical depression in deep water about 400 miles SE of Cabo San Lucas, Mexico, with winds of 45-60 knots and seas of 18 ft. - Vessel's bow yawed 10° - Drift was 2 n.m. during 20 hours at sea anchor (confirmed by GPS).

Several weeks after Ariel left San Diego for points south she ran into an unforecast loop of ITCZ - Inter Tropical Convergence Zone - at 21° 09' North, 106° 52' West. In his book, Weather For The Mariner, William J. Kotsch has this to say about the phenomena (Naval Institute Press, reproduced by permission):

     "The ITCZ is usually characterized by strong, ascending air currents, a great deal of cloudiness, and frequent heavy showers and thunderstorms. The intensity does, however, vary greatly. Sometimes the ITCZ looks like a tremendous wall of black clouds, with the top extending to 55,000 feet and higher.... The width of the ITCZ varies from about 20 to 150 nautical miles, and as a general rule, the narrower the zone (i.e., the greater the convergence), the more intense is the weather associated with it. When the ITCZ is near the equator, only small and weak cyclonic circulations can develop within it. But when it migrates away from the equator (at least five degrees or more), the influence of the earth's rotation becomes great enough to transfer sufficient "spin" to the converging air currents to permit tropical cyclones, hurricanes, and typhoons to develop."

One really needs a chart of Mexican waters to appreciate the value of a parachute sea anchor in tight quarters. Ariel was about 100 miles off the Mexican coast proper, with the rocky islands known as Tres Marias to her lee. The crew consisted of owner Josh Tofield, his wife, and two small children. Tofield deployed an 18-ft. diameter Para-Tech sea anchor and "anchored" Ariel to the surface of the sea.

Tres Marias is a Mexican prison compound. There is a 20-mile forbidden zone around it and pleasure boats have been known to be rammed by gunboats for intruding into the zone. It being dark, and apprehensive about getting too close to the islands, Josh Tofield kept a close eye on the GPS readings. Incredibly, he found that Ariel drifted no more than 2 nautical miles in the 20 hours that she was tethered to the sea anchor. Transcript:

Only 100 miles from Puerto Vallarta and with the Islas Tres Marias in our lee we got caught in a brief but fierce (unpredicted by WX or WXFAX) loop of ITCZ convection sucked up to our latitude. Winds of 45 knots sustained, gusts to 60 for 6-8 hours, with 30-35 knots sustained for 6-8 hours before and after. As long as the wind was blowing from the SE the seas were highest - but also most comfortable, as our catamaran rocked up and down in 18-ft. maximum seas, with 3-ft. breaking tops, and almost no side to side [yawing] motion. However, as the wind veered, large cross swell came under and slammed bridge & deck viciously - but no damage and no excess heeling.

My alternative would have been to run off to the West - which we could have done - but I didn't want to as we would have been blown all the way to Cabo before the wind subsided.

Only problem was the trip line. Perhaps I tied it on wrong to its small swivel, but it fouled fender severely and pulling in required anchor windlass and much bad language!

ADJUSTING BRIDLE FOR BEST RIDE.
ADJUSTING BRIDLE FOR BEST RIDE.

This is one of numerous files in which boats had problems with fouled up trip lines. Yet another reminder that FULL trip lines should be kept fairly taut at all times (see Fig. 39 and review last paragraph of file S/T-7). Also, the problem relating to cross swells mentioned by Tofield can in most instances be lessened by adjusting the lengths of the bridle arms on multihulls. By shortening one bridle arm and lengthening the other (Fig. 41) it is possible to rotate the bows into a direction more accommodating to changing sea conditions. If the wind and dominant waves have been coming from the north (0°), for example, and a secondary disturbance begins to squeeze in a different set of waves from the northeast (45°), the skipper may wish to adjust the bridle arms so that the bows are pointing somewhere in between the two sets of waves (about 22°).

Sea Anchors on Catamarans

S/C-5 Catamaran, Walter Greene

1 Comment

S/C-5

Catamaran, Walter Greene

50' x 30' x 5 Tons

4-Ft. Dia. Sea Anchor

Force 9 Conditions

 

File S/C-5, obtained from Walter Greene, Yarmouth, ME. - Vessel name Sebago, catamaran, designed by Walter Greene, LOA 50' x Beam 30' x Draft 7' (20" board up) x 5 Tons - Sea anchor: 4-ft. Diameter Shewmon on 250' x 3/4" nylon braid tether and bridle arms of 50' each, with 1/2" galvanized swivel - No trip line - Deployed in a whole gale in deep water in the middle of the North Atlantic with winds of 40-50 knots and seas of 25-30 ft. - Vessel's bow yawed 45-60° - Drift was estimated to be 30 n.m. during 48 hours at sea anchor.

By way of a brief digression we should perhaps mention a previous experience of renowned multihull designer Walter Greene, an experience that ushered in a new era in SAR (search and rescue). Indeed the experience marked a point in maritime history when it became possible to ensure the safety and survival of human life at sea to an extent never before possible.

On 10 October 1982 Greene was sailing his 50' trimaran Gonzo to St. Malo, France, when it capsized in a violent North Atlantic storm 300 miles south-east of Cape Cod. The boat had been running before 30-ft. seas without a drogue when she was picked up and thrown by a huge wave - she broach-capsized when one of her bows dug into green water. Once over the initial shock of the capsize, Greene and his well-prepared crew jumped into action. In no time they had donned their immersion suits, lashed themselves to the upturned, floating, hull, and switched on the EPIRB - Emergency Position Indicating Radio Beacon.

It was the navigation officer on board TWA's flight 904 that first heard the lonely wailing of Gonzo's EPIRB (the signal is swept audio tone, sounding like a miniature "wow-wow" police siren). The information was immediately relayed to the FAA's Oceanic Control at Islip, New York, which in turn informed Atlantic Rescue at Scott Air Force Base in Illinois.

At that time (1982) SARSAT - Search And Rescue Satellite-Aided Tracking - was not quite operational, but a participating Russian satellite, Cospas, was known to be overhead. Scott AFB obtained an uplink and sure enough, no sooner had Cospas signed on than it confirmed a "hit." The satellite then provided data and telemetry needed to pinpoint the position of the distressed vessel. Atlantic Rescue then broadcast an urgent All Ships Bulletin, and the tanker California Getty was diverted to the scene. At the same time, the Coast Guard Air Station at Elizabeth City North Carolina was briefed and advised to launch a C-130 search plane, which picked up Gonzo's EPIRB signal, homed in on it and dropped two datum marker buoys (which transmit additional homing signals on a different frequency).

The tanker California Getty was the first on the scene, but failed to effect safe rescue in the 25 ft. seas, standing off to windward to provide a "breakwater" for the disabled trimaran. And there she stayed, "like a big Saint Bernard," until the 210' Coast Guard Cutter Vigorous arrived on the scene.

One by one the three survivors were taken off to safety, concluding one of the most remarkable rescues in maritime history -one of the first in which a satellite played an instrumental role. (A quick reminder that SARSAT is now fully operational in most areas of the world and any sailor with a Class A EPIRB can access the grid to get a distress signal through to international Search & Rescue agencies).

Walter Greene happily went on to design many more multihulls and four years later used a sea anchor on board his 50' catamaran, the infamous Sebago. The 4-ft. diameter Shewmon sea anchor was deployed off the bow, but was too small to do a satisfactory job (the same sea anchor did a lot better when used off the stern - see file D/C-1.) The bows of the big catamaran yawed past 60° at times.

Shewmon sea anchors are available in many sizes, up to 33 feet in diameter. Literature published by Shewmon, Inc. would seem to indicate the need for an 8-10 ft. diameter Shewmon sea anchor for a boat the size and weight of Greene's Sebago.

Why did Walter Greene choose a 4-ft. diameter sea anchor instead? Likely he was worried about a bigger one being too "unyielding." Victor Shane ran into this same apprehension among other multihull sailors. To this day some of them will react with alarm at the very idea of tethering their boats to a large diameter, "unyielding" sea anchor in a gale.

Sea Anchors on Catamarans

S/C-4 Catamaran

Leave a comment

S/C-4

Catamaran

40' x 20' x 3.5 Tons

12-Ft. Dia. Parachute

Force 7 Conditions

 

File S/C-4, obtained from Sackville J. Currie, Blaney, Ireland - Vessel name and design unspecified, hailing port Tokyo, catamaran, LOA 40' x Beam 27' x Draft 6' x 3.5 Tons - Sea anchor: 12-ft. Diameter Para-Tech on 60' x 1/2" nylon braid with 1/2" galvanized swivel - Emergency deployment when the windward ama broke off in shallow water (100 fathoms) five miles off Cape Nojima, Japan, with winds of 30 knots and confused seas of 12-15 ft. - Occupants were taken off by a Japanese Coast Guard helicopter.

File S/C-4 illustrates the value of a sea anchor in one of many likely damage control situations. En route to Sendai this 40-ft. catamaran sailed out of Tokyo Bay and, rounding Cape Nojima to head north, ran into 30-knot winds blowing contrary to a local current.

After considerable heavy labor against 12-15' steep, confused and choppy seas the windward pontoon suddenly broke off, leaving the catamaran lame and disabled seven miles offshore, now rapidly drifting out into the open sea.

The owner's main concern was that the boat might tack and, with the one ama broken off, capsize. He immediately deployed a 12-ft. diameter Para-Tech sea anchor off the bow of the remaining hull. The sea anchor held the lame boat more or less head-to-sea, preventing capsize and at the same time keeping the crippled vessel from drifting out of the shipping lanes and into the great Pacific. With the situation temporarily stabilized and the motion of the yacht eased, distress flares were then launched which were spotted by a passing freighter. The captain of the freighter radioed the Japanese Coast Guard, which sent a helicopter to the scene and plucked the survivors off the multihull. The boat was then abandoned to the raging seas, still tethered to its 12-ft. diameter, orange-colored parachute sea anchor.

Sea Anchors on Catamarans

S/C-3 Catamaran, Prout Snowgoose

Leave a comment

S/C-3

Catamaran, Prout Snowgoose

37' x 16' x 6 Tons

12-Ft. Dia. Sea Anchor

Force 9 Conditions

 

File S/C-2, obtained from William E. Masters, Columbus OH. - Vessel name Rhayader, Snowgoose catamaran, designed by Prout, LOA 37' x Beam 16' x Draft 2'6" x 6 Tons - Sea anchor: 12-ft. Diameter Para-Tech on 300' x 3/8" nylon three strand tether and bridle arms of 12' each, with 5/8" galvanized swivel - Full trip line - Deployed in a whole gale in the Bay of Biscay, and also in a low system near the Bahamas with winds of 35-60 knots and seas of 20-30 feet. - Vessel's bow yawed 10° - Drift was estimated to be 12 n.m. during 66 hours at sea anchor.

Rhayader, a handsome 37-ft. "Snowgoose" designed and built by the Prout brothers, was purchased in England and sailed across the Atlantic in April 1987. The owner, William Masters, used a 12-ft. diameter Para-Tech sea anchor in a gale in the infamous Bay of Biscay. Winds were then sustained at 45 knots, gusting to 60. The sea anchor was used again about a year later when Rhayader ran into a low system stalled off Bermuda. When a low system gets stalled for an extended period of time, even if it is only packing thirty knot winds it will eventually begins to generate huge waves and swells. On the DDDB form that Masters sent back he indicated that some of the combined seas were higher than 30 ft. On this second occasion Rhayader was tethered to the sea anchor for 66 hours. Transcript:

During the 66 hour period, the seas and wind averaged 040° True. Our drift was 262° True, probably tidal set onto the Bahamas Banks. Also, in April of '87 while sailing to the Canary Islands from England, we deployed the para-anchor off the Continental Shelf, depth unknown. Winds were easterly, sea from the northwest. Nasty. Seas were short and steep (200-250' crest to crest. Winds were steady 45 knots, gusts to 60 knots. Hove to the para-anchor for 22 hours. Drift was 2 n.m. west. Thanks, para-anchor, and of course the Casanovas. I wouldn't leave port without it.

Sea Anchors on Catamarans

S/C-2 Catamaran, Gemini 3000

Leave a comment

S/C-2

Catamaran, Gemini 3000

30' x 14' x 3.5 Tons

24-Ft. Dia. Parachute Sea Anchor

Force 7 and 8 Conditions

 

File S/C-2, obtained from R.P. King, McCune, KS. - Vessel name King Kat, Gemini 3000 catamaran, designed by Robin Munster and Tony Smith, LOA 30' 6" x Beam 14' x Draft 4' 6" (1' 6" board up) x 3.5 Tons - Sea anchor: 24-ft. Diameter military chest reserve on 300' x 1/2" nylon three strand tether and bridle arms of 40' each, with 1/2" galvanized swivel - Full trip line - Deployed in an Atlantic gale in deep water near Flores Islands (Azores) with winds of 35-40 knots and seas of 10-15 ft. - Vessel's bow yawed 10° - Drift was reported to be minimal.

King Kat was the fifth production "Gemini" catamaran to be built by Performance Cruising, Inc. of Mayo, Maryland. It was a prototype, without the large pilot house that has since become a characteristic of the Gemini. It was purchased by Dr. and Mrs. Robert King, who sailed her to Europe in 1984, this being the first Gemini to have crossed the Atlantic - a great many more have crossed since. Your author received a letter from the Kings in 1985. The envelope had a French stamp on it. Transcript:

Dear Para-Anchors International, we received your newsletter. Since you mention testimonials, we are glad to contribute ours. We cannot equal the high drama of some of your other testimonials; but we hope we can always use our para-anchor because we choose to - not because we have to. A trans-Atlantic sailor sold us his spare para-anchor in the spring of 1984. In June, my wife and I left Tampa Bay for England in our 30' Gemini. We are both 56 years old. These synopses, mostly from the log, explain why we would not be without our para-anchor:

 

      June 19: Had rough, wet night. Winds over 30 knots, waves of showers, irregular 12 ft. waves from all directions. Autopilot out. Jib alone since 0330. Gave it up at dusk and tried para-anchor for first time. Boat swung directly toward wind, still active in the waves, but much slower, easier motion. Both slept like babies. It works!

      June 20: Woke refreshed and sailed on. Still overcast. Third day no celestial fixes. Worried about reef west of Bermuda. Set para-anchor before dark. Later saw beacon clearly. Good night's sleep (then went into Bermuda refreshed).

      July 11: Waves have been building for five days with winds usually over 30 knots. We must be running with the storm. Autopilot out again. Another day under storm jib alone. Winds today 35-38 knots steady, gusts to 45 in squalls. Para-anchor deployed 2100 hours. Boat dipping bows under breaking waves (about every 20th wave). Slept soundly for 12 hours!

      July 12: Arrived off Flores (Azores) Island about midnight. Set para-anchor to sleep until morning. Need daylight to enter the tiny, rockbound unlit harbor. Checked position with beacons. Don't think we drifted a foot in 8 hours.

      July 29: Hit by fast-moving front. Winds hit 45 with gusts up to 55. Had para-anchor out before then, however. Good evening playing scrabble.

 

We have logged 20,000 miles on King Kat including passages to the Caribbean and back, and to Europe and back. In short, the para-anchor gives us the option of taking a breather whenever we choose. It's like being able to call "time out." A para-anchor takes the fear and sweat out of passage-making.

SC2

Sea Anchors on Catamarans

S/C-1 Catamaran, CSK

Leave a comment

S/C-1

Catamaran, CSK

65' x 30' x 22 Tons

28-Ft. Dia. Parachute Sea Anchor

Force 8 Conditions

 

File S/C-1, obtained from Bruce Reid, Costa Mesa, CA. - Vessel name Rose Marie, hailing port Vancouver, BC, catamaran, designed by Vince Bartalone, LOA 65' x Beam 30' x Draft 3' 3" x 22 Tons - Sea anchor: 28-ft. Diameter C-9 military class parachute on 500' x 1" nylon three strand tether and bridle arms of 60' each, with 5/8" galvanized swivel - No trip line - Deployed in gale force winds in shallow water (40 fathoms) off Point Conception, California, with winds of 40 knots and seas of 15-20 ft. - Vessel's bow yawed 5° - Drift was upwind at 2 knots, induced by current.

 

Rose Marie was on her way to Vancouver from Newport when she ran into gale force winds off Point Conception - the "Cape Horn of the Pacific." The skipper put out the 28-ft. diameter C-9 parachute when progress against headwinds began to diminish. The strong coastal current that flows northward hereabouts caused the para-anchor to tow the big catamaran upwind! Because water is some 800 times heavier than air, large sea anchors should be used with caution where there are local currents, especially in close quarters. The sea anchor will pull the boat with the current, regardless of the intensity and direction of the wind. If the current is going your way, then fine and well. If not, be warned that the sea anchor may tow your boat over a ledge, across fishing nets, a shipping lane or into other hazardous areas. Transcript:

We were conducting sea trials of our newly launched C/S/K designed catamaran. We had departed Newport Beach on 9 June 1984 with the intention of making our way north to Vancouver B.C. On the evening of June 11 we anchored at Coho, an open roadstead just southwest of Point Conception, along with six or seven fishing boats and two other cruisers. The winds were northwesterly at 28 knots, gusting to 38 knots, and the seas were about 15 ft., which continued to build during the night. By early dawn the fishing vessels all departed in the direction of Santa Barbara, along with one of the cruisers. The other cruiser, a Westsail 32, raised sail and headed out to sea. At around 5:30 am we motored out to see what the conditions were... the 2 am weather report was 35 knots gusting 45, with seas of 15-21 ft. We continued on course for about an hour and a half when the wind shifted to the north by northwest and our progress began to diminish. The Westsail 32, under sail and engine, passed ahead of us on a port tack and seemed to be taking a lot of green water. Standing on our cabin top my eye level is about 18 ft. above the waterline and in several of the troughs I could not see over the approaching wave. The 6 am report described the sea as 18-26 ft. and I am sure they were all of 18 and occasionally 26 ft.

Within one mile or so of Point Arguello, the Westsail 32 turned and ran back toward Point Conception.... Though we were not in any trouble, we decided to deploy our 28' diameter parachute and take a rest. We had covered only nine miles in about three and a half hours. My windspeed indicator averages out most of the gusts, so the peak winds are not known, but while lying to the parachute the wind rarely fell below 40 knots, and on occasion we saw 50 knots.

Standing about a mile and a half offshore, lying abeam to the sea under minimum power, we slowly deployed the parachute off the port bow, letting it stream off to weather about 30 to 40 feet. We then snubbed off the rode and watched the chute fill and come to full shape. We then fed out the rode until it was a full 500 ft. out to windward, then secured it to the bridle, in turn secured to the port and starboard bow bollards. Everything became quite peaceful. We took reference sights on the shoreline and went below for breakfast.

About twenty minutes later, I checked on our shore marks but could not identify them. I had a feeling of confusion and together with a crew member established a new set of reference marks on shore. Fifteen minutes later I went on deck and saw that the marks had shifted unexpectedly. What had confused me on my first sights was that I had expected our drift to be to leeward. After careful calculation we estimated that we were making about 2 knots to windward! We were making about the same progress to weather as we had been making motor-sailing, however, with everything shut down life had become so peaceful we had to refer to the windspeed indicator to verify the winds had not decreased and in fact had increased slightly.

After about two hours we decided to practice picking up the parachute and attempted a hand over hand retrieval. A bit of foolishness. We then cast off the rode and began to motor up on the trip line float. Again another bit of foolishness. The float's relationship to the parachute was impossible to determine and in short order we had the parachute around a prop. After recovering all the rode and what we could of the parachute, we sailed off back around Point Conception. So far as we could determine, our cat has never shown any tendency to sail about while laying to a parachute (on 500 ft. scope). Whatever movement there may be is within a five degree arc. If the movement is in fact greater than that it is very difficult to identify it from the other motions, created by the sea state.

All my parachute retrievals since this event have been by a polypropylene trip line, however I find even with the help of various crew members recovering a chute on 500 feet of rode is always work, even when conditions are less hectic. So far as I am concerned, getting to port ahead of a storm is the best tactic. But if that is impractical, lying to a parachute on a bridle, head-to-wind, or even with the sea quartering, is by far the safest and least wearing storm tactic I have tried to date.

Drogues on Trimarans

D/T-10 Trimaran, Newick

Leave a comment

SVALD/T-10

Trimaran, Newick

40' x 28' x 3 Tons

36" Dia. Galerider

Force 8-9 Condition

 

File D/T-10, obtained from Deborah Druan, Farmingham, MA. - Vessel name Greenwich Propane, hailing port Greenwich, CT, ocean racing trimaran designed by Richard Newick, LOA 40' x Beam 28' x Draft 5' 6" (2' 6" board up) x 3 Tons - Drogue: 36" Diameter Galerider on 250' x 5/8" nylon braid rode - No bridle - 5/8" Stainless steel swivel - Deployed in a gale in deep water about 400 miles NE of the Azores with winds of 40-45 knots and seas of 18 ft. - Vessel's stern yawed 10° - Speed was reduced to about 3 knots during 10 hours of deployment.

Debbie Druan is the United States' foremost female multihull skipper - America's Florence Arthaud. She has won numerous first-to-finish trophies to date, the latest on her Formula 40 racing trimaran, Toshiba. Doubtless she will make it to the Whitbread. Debbie is also commodore of the New England Multihull Association and has written numerous articles about ocean crossing and heavy weather tactics in the journal of the NEMA. In May 1994 she arrived in Bermuda with David Koshiol and Joe Colpit to deliver the 40-ft. Newick trimaran, Greenwich Propane, to Plymouth, England. The owner of the boat, John Barry, was to race it in the 1994 Two Star Double Handed Transatlantic Race from Plymouth to Newport. On the Horta to Plymouth leg of the crossing Debbie and crew ran into a gale. The following is a transcript of her report, appearing in the September 1994 journal of the NEMA (reproduced by permission):

The gale hit us on May 23. We were 838 n.m SW of England and 424 n.m. NE of the Azores. It was good to know about the low in advance because by noon when it started building rapidly we knew why. We went from the full main, jib, and spinnaker to just the jib, surfing at 10-12 knots down 8 ft. seas in 18-22 knots of wind. We decided to just take the main down and not deal with reefing. We weren't racing and just needed to get the boat to England in one piece and on time, so we played it conservative. By 5:00 PM as the wind and waves increased we just kept rolling in more and more jib and took the rotation out of the mast. We were still going just as fast. It was tiresome, wet and cold on watch, so we went to a 2 hours on and 4 off system. Late that night it had moderated down to 30 knots and 12 ft. waves, so we started thinking the worst was over.

The next morning we started getting hit by rain squalls and an increase to 40 knots and 18 ft waves. There wasn't much jib left out so we started wondering what we were going to do when we ran out of jib. The problem was that the boat didn't have a barometer and we had no way of telling if we were moving along with this storm, or if it was intensifying. After much discussion between the pros and cons of setting the para-anchor or the Galerider, we decided on the Galerider because it seemed out of the question to turn the boat up broadside to the 18-20 ft steep seas to set the anchor off the bow. So we pulled out the Galerider and got it ready just in case. It wasn't the high wind that concerned us but the fact that the boat just was not steering down the steep waves very well. Occasionally she would surf madly down the face of a wave, the rudder would cavitate, we'd lose control and go down a wave sideways. You only needed for this to happen once and the boat could trip over itself. As Joe had once capsized in another trimaran, he was familiar with the warning signs.

Finally, after 24 hours of hand steering down these steep seas David, who was on watch, yelled down to us "hey these suckers are getting bigger, we better do something." As another large wave slammed us sideways, you could hear the nervousness in his voice. They were over 20 ft now. We determined that we must be moving along with this system, as the wind was supposed to change direction after it had passed, and it hadn't. We needed to stop and let it pass by us. We were all worried. None of us had ever set out a drogue before. The Galerider was constructed of thick 2" webbing in a criss-cross pattern with a 3 ft diameter opening. Attached was 6 ft of 3/8 chain and a 5/8 swivel. The line was 250 ft. of 5/8" nylon braid. The blocks on the ama sterns weren't strong enough to be used for a bridle, so we used the main stern anchor cleat to secure it.

While David steered, I made sure all the line was flaked and ready to pay out of the bag in the cockpit, and Joe stood on the main transom with the drogue. He looked like he was standing over the edge of a huge cliff with 20 ft deep troughs and 250 ft to the next wave crests. Joe took a wrap around the cleat and gently dropped the Galerider off the stern: instantaneously the Galerider took hold and you felt the boat take a huge tug backward. The transom was pooped instantly as a wave overtook us. Joe paid out 150 ft of line. We waited, wondering if the anchor cleat was holding. You could see the Galerider riding the crests of the waves, so he paid out another 100 ft of line to take the strain off the cleat. Now you could see only the line riding in the waves. Soon we were surrounded by mountains of waves and they just came up, passed under the boat, and away. We were calmly and slowly going down wind at three knots.

Our first reaction was "why hadn't we put it out sooner?" Even without a bridle, the Galerider stayed centered off the stern. It only yawed back and forth a little. It was now easier to steer. For anti chafe gear we used a rag on the cleat and kept and eye on it. Ten hours later the wind and seas had moderated enough and we simply pulled the drogue back in. Joe from the stern pulled it in hand over hand, waiting for the line to go slack between waves. David tailed the end of the line on the runner winch into the cockpit.

Two days from the onset of this low we were able to put the full main back up. For the next 800 n.m. to Plymouth we'd have 2-3 days of wet, bumpy and cold conditions to one day of dry and warm.... The last 300 n.m. was a beat to weather. As we were worried about the rig we sailed the boat as conservatively as possible. We made our approach to England by the Lizards.

Drogues on Trimarans

D/T-9 Trimaran, Shuttleworth

Leave a comment

SHUTLWTHD/T-9

Trimaran, Shuttleworth

60' x 40' x 10 Tons

12 Knotted Warps (300' each)

Force 12 Conditions

 

File D/T-9, derived from an article by Richard B. Wilson, appearing in the October 1991 issue of SAIL MAGAZINE - Vessel name Great American (ex-Livery Dole IV, ex-Travacrest Seaway) hailing port Boston, MA, maxi ocean racing trimaran designed by John Shuttleworth, LOA 60' x Beam 40' x Draft 11' (3' board up) x 10 Tons - Drags: 12 knotted warps, 300' each (3/4" and 5/8" nylon) - Deployed in a 940 milibar storm in deep water 400 miles west of Cape Horn with sustained winds of 70 knots and breaking seas of 50' - Vessel capsized on 22 November 1990 despite the 12 long warps - Crew of two were rescued by the M/V New Zealand Pacific.

On 22 October 1990 Rich Wilson and Cape Horn veteran Steve Pettengill set sail on the 60-ft. maxi ocean racing trimaran Great American determined to break the 76-day San Francisco to Boston record set in 1853 by the clipper Northern Light. Apart from wanting to beat the record, it was also Rich Wilson's goal to heighten public awareness of the activities of the American Lung Association and to prove the viability of corporate sponsorship in sailing. Wilson is a severe asthmatic.

Sailing out of San Francisco Bay Wilson and Pettengill put "pedal to the metal" and tried to imagine their opponent, Northern Light, beginning to trail behind. Having records of Northern Light's daily runs, they had their imaginary opponent in view, so to speak, trailing behind all the way down the coast of California and then Mexico. In skirting hurricanes Trudy and Vance off Mexico, however, the lead changed hands a few times as the ghost of the 200-ft., three-masted clipper ship would overtake the trimaran, only to be later overtaken herself. Once past the equator, Wilson and Pettengill began bashing full bore into the southeast trade winds. The going was rough and took a heavy toll in equipment failures. After passing Pitcairn Island they began to line up their approach to Cape Horn - and "the mother of all storms."

It began as a low system that "exploded" (to quote the words of meteorologist Bob Rice) into a 940 milibar storm, with Great American's number written all over it. Approximately 600 miles from Cape Horn the storm said hello to Wilson and Pettengill when the trimaran broached, tripped on her big daggerboard, and Wilson was thrown violently out of his bunk. The two dazed men found that they had to raise Great American's huge daggerboard all the way up to improve steering and avoid tripping on it.

Steve Pettengill then let out five knotted warps, 300' each, slowing the boat down a little. On the next day the boat broached again with the five warps in tow. But she side-slipped smoothly - raising the board had definitely helped. Pettengill added three more 300' long knotted warps. On Wednesday morning, 21 November, the boat's barograph tracer hit rock bottom. Four additional knotted warps were then added, making a total of twelve (12) to bring the speed back down to 9 knots in 70-knot winds and 50-foot seas.

On Thanksgiving morning, some 400 miles west of Cape Horn, a graybeard swept over the entire boat (this trimaran is 60 feet long and 40 feet wide!) carrying away the two wind generators. Great American then rushed down another steep mountain. The combined drag of the twelve knotted warps were not enough to keep her properly aligned. She slewed to starboard, probably dug the port ama, heeled, and capsized. The two men, fortunately OK, immediately donned their immersion suits, activated the 406 MHz EPIRB, and resigned themselves to the business of survival. As they were sorting out the debris in the inverted main hull, "the grandfather of all waves wrenched the water-laden trimaran out of the water, spun her, and slammed her violently back down, upright again." (Quoting from Wilson's article in SAIL).

So, Great American was right side up again! But the mast and the rigging were in pieces on deck and trailing in the water. The cockpit was awash and the main hull looked like a submarine, with the winches at sea level. Everything was in shambles. Everything had broken free down below. They wondered whether they would have been better off if they had remained upside down. Somehow, in the freezing cold, they managed to sort things out and get a little hot nourishment. Meanwhile, Scott Air Force Base in Illinois had received a "hit" from the EPIRB. Additionally the ARGOS, which had gone off when the second wave righted the boat, had alerted a base in France, which alerted Atlantic Rescue. AMVER (automated merchant vessel emergency routing) then found the nearest ship to be the New Zealand Pacific. In a feat of brilliant maneuvering, Captain Dave Watt brought his 62,000 ton ship - the world's largest refrigerated container carrier - alongside the awash Great American at 3:30 am in the dark. With the 815-foot ship rolling severely, Captain Watt coordinated the throttles and bow thrusters with such precision that Rich Wilson and Steve Pettengill were able to step onto the rope ladders hung down from the cliff-like side of the ship. They were then taken inside, cared for, and taken to Vlissingen, Holland.

Three years later, Rich Wilson and his new crew mate, Bill Biewenga, set out again from San Francisco. This time Wilson accomplished his goal. On April 7, 1993, Great American II finally arrived in Boston, 69 days and 20 hours out of San Francisco, beating Northern Light's record by six days. Wilson is currently head of Ocean Challenge, an educational institution dedicated to linking classrooms all over the world with ongoing adventures. Ocean Challenge has an interesting web site that readers may wish to explore: www.sitesalive.com

Using Parachutes, Sea Anchors and Drogues to Cope with Heavy Weather – Over 130 Documented Case Histories