Tuesday, April 26, 2016

A traverse of the Corryvreckan: "Beware of the flood in a sudden calm preceded by several days of strong west winds."

Slack water after the Corryvreckan flood was at 16:10 on 19/04/2017. To give ourselves time to get to the west end of the Corryvreckan where the incoming swell would meet the flood tide we set off from Port nam Furm at 15:24.

As we rounded the headland at the north end of Jura we came across the Sea Leopard II tour boat from Craignish Cruises.  Her alert skipper immediately throttled back to reduce her wake. This was very appreciated as wake combines with the Corryvreckan currents to produce very irregular waves. Several times in the Corryvreckan I have had to battle against such wake waves from thrill seeking power boats. To be fair I have never met anything but courtesy from the professional tour boats. Anyway after a big wave of thanks to the Sea Leopard II we set on our way.

Ahead, our eyes were now drawn to the open sea. I was quite glad that neither Ian nor Mike seemed to notice the large standing waves to our right which were forming over the pinnacle in the fairway of the Corryvreckan where the whirlpool forms.

It had been very windy from the west until the early hours of the morning, so we approached the west end with some trepidation. The pilot books warn: "Beware of the flood in a sudden calm preceded by several days of strong west winds. On the last of the flood an overfall can form as the tide meets the swell and form a solid wall of water across the Gulf." However, all was calm as we made our way through the narrowest part of the Gulf but...

 ...as we caught sight of the first of the islands on the south shore, we met the first of a series of large large swells that were marching in against the outgoing tide.

At this point the flood tide was still running west at 6km/hour though out beyond the islands it appeared to be approaching slack water.

 We were approaching the gap between Aird Bhreacain and Buige rock (just to the NW of the 68 on the map) and where the water is shallower when all of a...

...breaking standing wave reared up right across the channel. The tide was carrying me towards it at 6km/hour and there was no way round so I just dug my paddles in to pick up some momentum. I got a face full of water but I was safely through. As I was then left trying to clear my flooded sinuses I have no idea whether the others had to face the same. It was now 16:08 just about bang on slack and we had got through the Corryvreckan! However, the tide had now turned and was now trying to push us back into the Corryvreckan. I had set a destination waypoint on my GPS and the velocity made good fell until it was reading -1.6km per hour. Time for a sharp exit!

George Orwell nearly came to grief here in 1947 with his son, nephew and niece when his motor dinghy got swamped. Fortunately the tide carried them onto Eilean Mor where they scrambled up the rocks. Some hours later a passing fishing boat  plucked them to safety.

 After 2.5km of somewhat strenuous paddling we arrived in the shelter of Bagh Uamh nan Giall. We had made it through the Corryvreckan. I have traversed the Corryvreckan many times E-W W-E on both the north and south shores, NW-SE, SW-NE and straight through the middle. I have no doubt that exiting the SW corner is the most committing though in 2008 Tony and I had a somewhat thrilling entrance, W-E on the north shore while the west going flood was still in full pelt.

On that occasion we took advantage of an east going eddy that runs along the Scarba shore on the flood. This eddy then swings out from the shore into the vortex that forms the whirlpool! Your breaking out skills need to be pretty sharp to avoid ending up in the whirlpool!

I have written extensively on the geography, history, mythology, and route planning of the Corryvreckan in previous posts which you can read here.



Monday, April 25, 2016

Sitting it out in Port nam Furm while waiting for the tide in the Corryvreckan

As we made our way up the coast of NE Jura a southerly breeze began to pick up and...

 ...it was strong enough to take an occasional rest to admire the local inhabitants.

Goats and particularly deer greatly outnumber the human inhabitants. Indeed Jura is one of the least densely populated areas in Scotland.

 We made great speed up to the prominent house at...

 ...Barnhill. This remote spot was chosen by George Orwell (real name Eric Blair) to recover his health after the war. He rented Barnhill from the Fletcher family (who still own and rent it) from 1946 until he died in 1950. He wrote the novel "1984" here between 1946 and 1948.

Beyond Barnhill, the current in the Sound of Jura really picked up and it accelerated us up to 14.5km/hr and...

 ...on towards the eastern end of the Gulf of Corryvreckan which separates jura from Scarba.

Great boils of water rose from the inky black depths of the Gulf and given the swell we expected to meet at the western end, it would have been foolish to continue through the Gulf until the flood tide had eased.

 I knew of an eddy within the eastern end of the Gulf which is backed by...

 ...a tiny bay called Port nam Furm (Port of the Chair). I had told the others that this was Gaelic for Last Chance Saloon! I had camped here with Tony in 2007 and stopped here with Jennifer, Phil and Tony in 2010.

When Tony and I camped we had time to climb to the N end of Jura to watch the flood which was at neaps, on this occasion it was almost springs.

It was rather frustrating sitting in the shelter not being able to see round the corner to the dreaded west end of the Corry. We wanted to arrive there at slack water which was at 16:10 (see here for how to calculate slack in the Corryvreckan) so we decided to wait.

 Fortunately this otter provided...

 ...plenty of entertainment while...

...we sat it out in Port nam Furm.

Sunday, April 24, 2016

Landfall on Jura

 Ian, Mike and myself met at Carsaig Bay on the west coast of Argyll on the morning of Tuesday 19th April 2016. Our original intention had been to set off on the preceding weekend but we are not masochists and it was so windy that many of the ferries were not operating on the Monday.

You can follow Ian's account starting here for the full sea kayaking stereovision experience.

 We set off as the tide was flooding northwards.

The Paps of Jura (27km away to the SW) rose above the headland guarding the south side of Carsaig Bay.

As we emerged from Carsaig Bay we caught sight of the low north end of Jura stretching away to the bulk of its northern neighbour the isle of Scarba. Our destination was the Gulf of Corryvreckan which lies between the two.

A very light breeze got up which...

...filled our sails as we paddle sailed straight across the Sound. In the hour of the crossing the tide carried us 5km up the coast of Jura where we...

...made landfall at Port Ban Mhic-a-Phi.  After our keels kissed the pale cobbles of the beach we stepped onto the ground of the hallowed isle of Jura, spiritual and actual home of the Jura Superstition which we carried in case of emergencies.

Saturday, April 09, 2016

Replacing the downhaul elastic on a P&H kayak rope skeg.

 If you have had your kayak for a while, the chances are that the skeg is not deploying fully. The elastic is retained by a stopper ball which slots behind some raised bars at the rear of the skeg box. Initially it is worth shortening the elastic by tying another knot in it. I have already done this twice so time for a new elastic.

Put the skeg into the down position and give the blade a good tug straight out of the skeg box to release the red axle hexagons from the slot at the front of the box. You do not need to untie the blue dyneema uphaul cord. Pull the old elastic out and...

 ...replace with new elastic. Clean out all sands, bits of shell, stick etc. before reassembling. I have added an extra small cable tie but watch your ties do not stick in the box. The blue uphaul rope should run between the two ends of the elastic which run back to the stopper. I have used 4mm elastic. This Delphin was originally fitted with the mark 1 adjustment slider which could be very stiff to operate. P&H fitted 2mm elastic to these boats to reduce resistance. I retrofitted a mark 2 slider to this Delphin and this is smoother and lighter to operate. I have found 4mm elastic to work well with the mark 2 slider and it also means the skeg stays down when paddle sailing at high speed. Push the axle nuts back into the slot. Check the skeg operates freely. If it sticks, unscrew the two halves of the red axle bit by bit until it swivels freely.

Finally tie a knot so that the elastic still has a reasonable amount of tension when in...

...the fully down position and push the elastic stopper ball right into the skeg box. If the skeg comes too far down or not down far enough you can untie the blue uphaul cord and shorten it or lengthen it. It is tricky untying the blue dyneena cord and then retying in the restricted space but it is not often necessary to have to do this.

Finally hose down the skeg box and slider and when dry apply a little silicone spray to the slider.

Tuesday, April 05, 2016

Kayak Carrier Systems Easy Haul kayak trolley portage strap long term test and review.

I am a great believer in using a kayak trolley, not just for short getting to and from the water but for longer portages of isthmuses that enable round trips that would not otherwise be possible due to time or geographical constraints. This photo was a portage over the 1.2km Tarbert on Jura but our shoulders arms and hands were really sore at the end of it. Just look how Tony is twisted round, trying to share the load between both arms.

Trolleys are also great on ferries but don't underestimate the distance you need to trolley the kayaks round the terminal, the length of the car deck and then the off ramp to wherever you can launch from.

I have been testing a new custom made trolley portage strap from KCS called the Easy Haul since October 2015. It has been used on the Solway, the Clyde and the NW coast of Scotland. It has been used on tarmac, rough tracks, ferry decks, sand and shingle. The test has now covered over 13km and 220m of ascent and descent.

The Easy Haul consists of a broad shoulder strap, shoulder pad an adjustable short towing strap and a carabiner.

On the Scottish west coast one of the most notorious portages is that at the Tarbert between salt Loch Nevis to freshwater Loch Morar. The track is 1.2km long rises to about 100m from Nevis and falls about 90 to Morar.

Despite being in the middle of an asthma attack which required multiple stops for puffs of my inhaler...

...I made it to the top first and Maurice and Mike were nowhere in sight. I even went back and towed Maurice's kayak 1/3 of the way up the hill. The Easy Haul is a stunning success and with both arms free you could even use two walking poles for extra drive. One thing to watch for, if you are attached to a loaded kayak, do not go too near the edge of any drops!!

Alternatively...
You could make your own from an existing kayak portage strap (for carrying the kayak on the beach), a piece of rope and a carabiner (perhaps use your kayak short tow line) BUT kayak portage straps get soaking wet if you use them to get the boat to and from the water . I would not like to put a soaking wet strap over my paddling under suit or land clothes. (Portaging is such hot work, you will not be using your waterproofs!)


Monday, March 28, 2016

VE Voyager paddle, long term comparative test and review.

Our little group are great fans of VE Paddles Explorer sea kayaking paddles, David, Mike, Phil and myself all use them. I now want to feed back on an exciting new development: a high aspect touring blade from VE. The new VE Voyager AirCore is suitable for both high and low angle paddling and is designed to have a very gentle catch.

Due to my ill health and inclement weather this review has been much delayed but the paddle has now covered a total of 350km and been paddled by myself and 5 others on a number of day trips which have varied between F0 to F4. The locations have included the Solway Firth, the Firth of Clyde and the area round the Sound of Arisaig. On most trips, we alternated between the VE Voyager, the VE Explorer small, the Werner Cyprus and a Lettmann Blacklight Greenland paddle for 5km each. On other trips Tony who normally uses a Werner Cyprus used the VE Voyager for a 30km trip, and David used the Voyager on 70km in separate tripos. I covered the remainder of the distance alternating between the VE Voyager, the VE Explorer small and large, the Werner Cyprus and a Lettmann Blacklight GP.

Phil, above, took to the Voyager straight away. Though Phil is a natural high angle paddler, he liked it both for high angle and low angle paddling.

He loved the soft catch, the lack of flutter and the lack of wrist strain even under hard acceleration. He also praised its ability to maintain speed as he disappeared over the horizon. He particularly liked the easy and clean exit. He preferred to VE Voyager to his current favourite paddle the VE Explorer small.

Mike alternates between his Werner Cyprus cranks and his VE Explorer small on a straight shaft. Mike commented about how easy and relaxing it was to use the Voyager in low angle style. He particularly liked the gentle catch. He found it very effective for bow and stern rudder strokes. He only tried the paddle in calm conditions and would like to try it in rougher water and surf before giving up on his Explorer. He also noted a bit of give when pulling on the blade. This was almost certainly due to the glass fibre shaft compared with the carbon shaft in his own VE Explorer. Mike felt he preferred the carbon shaft.

Original VE two piece join, results in halves being different length.

Mike noticed that the split paddle has two different sized halves. This is because the shaft has been cut exactly in the middle so that the leverlock is in the middle when the shaft is at its shortest. (Of course when the shaft is extended, it is offset). He found that the longer half would not fit in his cockpit which has a custom bulkhead, neither would it fit in his Subaru Impreza boot. David also found the longer half would not fit in his BMW E46 3 series boot. This meant we could not put all our gear in the cockpit and get the cockpit cover on when we trolleyed the kayaks onto a ferry or put them onto the roofrack when running a shuttle.

Scottish Lendal join, results in two halves of equal length.

Scottish Lendal used to cut the shaft to one side of the midline and fit the joining spigot to the shorter half. (The Lendal shaft above is not adjustable in length but Lendal adjustable length shafts were also cut like this.) This results in the two halves being as short as possible, which is the whole point of having a two piece. It makes it easier to transport. I fed this back to Stu at VE paddles and he has taken the comments on board. He will now offer a further option to split the two piece shaft asymmetrically to make more equal halves to suit those customers who need their two pieces as short as possible. Well done Stu!

David normally paddles with a VE small blade paddle. He took to the Voyager straight away and particularly liked it for low angle paddling and the gentle catch.

He praised it for how light it felt and how little it stressed his arthritic joints giving an effortless feel to paddling.

He did wonder if it might feel too light in the water and initially like Mike wanted to reserve judgement until he had tried it in rougher water before deciding whether he preferred it to his Explorer.

He did not have long to wait. Just after this photo was taken, the west wind got up and blew straight into the south channel of Loch Moidart out of which the east going spring ebb was running. It got rather too rough to take out my Canon 5D Mk 3 but David tackled the rough stuff with gusto. He preferred the slightly bigger Voyager blade to his Explorer small. He also appreciated the softer glass shaft to his stiffer carbon Explorer shaft.

At the end of David's 70km with the VE Voyager he was extremely reluctant to hand it back. Indeed I had to wrest it back from his grip. He hung on fiercely despite the cold affecting his arthritic hands. (Note the Walker's crisp bag pogies (sea salt and vinegar of course).

When he first tried the VE Voyager, Maurice had had a long hard day's paddle the previous day and his wrists were aching from not having used his Werner Cyprus paddle for some months. (Both Tony and I also find this if we have not used the Cyprus for a while.) Maurice could not believe how light the Voyager felt when pulling in the water compared to his usual Cyprus paddle.

Mike on the left with the Explorer, Maurice on the left with the Voyager at the start of a 37km round of Loch Nevis and Loch Morar.

Maurice also commented how the Voyager had a more gentle catch and less flutter than the Cyprus even when accelerating hard. He was also surprised by the power of the Voyager blades. One unexpected result of this particular day was that both Mike and Maurice tried the GP after trying the Voyager. They had each tried the GP once before after using their Cyprus paddles. In those tests neither of them liked the GP. This time they both appreciated the GP more after having tried the Voyager first! Although Maurice preferred the VE Voyager to his own Werner Cyprus and is looking for a second paddle, he felt the Voyager was too close in style to his Werners and is thinking of buying a GP as a second paddle.

Tony was very surprised about how powerful the Voyager was despite the gentle catch. He could not wait to sprint ahead. He thought it worked very well when pushing on but without causing strain. He, like me, had only paddled once in four months and though his muscles were aching after the 30km crossing to Arran, he did not complain about sore joints, which he had noticed on the same crossing after a similar lay off. On that occasion he used his Werner Cyprus. He found the Voyager paddle to be a bit heavier in the hands than his Cyprus and said he would be keen to test the Voyager with cranks on a carbon shaft.

As far as my own impression is concerned, I echo the comments about clean entry and exit, the gentle catch, the surprising power with lack of flutter and the low strain on my joints when pushing on. Like Phil, I found the Voyager worked equally well in high or low paddling styles and it certainly is no slouch if you are paddling hard with a high angle stroke (which both Phil and Tony favoured when using the Voyager).  Due to the recent weather we have not yet tried paddling when loaded on a camping expedition but the ease of paddling on a day trip bodes well for their use when loaded on longer trips.

With regard to the Voyager shaft on test, it is made of glass fibre rather than the carbon in the Explorer shafts we were comparing it with. I am sure that this contributes to the lack of strain on the joints. It does not lead to a noticeably heavier paddle.  Tony did note a weight increase over his Cyprus paddle but it does not have spigot that allows extension by 10cm. Phil thought the Voyager was lighter than his Explorer with carbon shaft! (Maybe this was due to the lower swing weight due to the high aspect blade). The shaft was a two piece with the excellent lever-lok which gives infinite adjustment of feather and 10cm difference to length. It has also proved remarkably reliable. (In comparison, I like many people, have discovered that the Werner joint can wear to give play (four of us use Werner Cyprus paddles and two have developed play). SystemX the UK importer have been very supportive of affected customers and have arranged for a good number of replacement splines to be fitted though this means doing without your paddle for up to six weeks as it is sent to the USA.

Being able to shorten a paddle by 10cm makes a great difference at the end of a long hard day, especially if against wind or tide. In comparison, the fixed length of the Werner Cyprus can be tiring at the end of a long day. The Voyager paddle was supplied with optional indexing on both sides which suits those that like to paddle with a low feather angle. All of us who use Werner Cyprus paddles appreciated this as they are also indexed on both sides. The Voyager index was a comfortable  shape and had a nice smooth but matt finish which gave a very good grip. The indexing was perfect with the shaft set to the shortest length. However, at full 10cm extension only half of my hands' width were on the indexing and I think the indexing should come further in. At full 10cm extension the indexing is 55cm apart, which is great for the wider grip when high angle paddling. When using a low angle paddle style, I tend to keep the hands a bit narrower, about 50cm apart. This was the distance apart that Scottish Lendal used on cranked paddles for touring compared with 55cm for their performance cranks *. A narrower grip contributes to the relaxed nature of low angle paddling as you lift the hand less high on the forward stroke. On a long paddling day this saves your shoulders a lot of lifting.

I fed this information back to Stu at VE paddles and guess what? Flexible and obliging as always Stu now offers the paddle grip indexing on not just both shafts but it now extends further in to keep your hands on the indexing even when the paddle is fully extended.

Durability. The test paddle had already been used before we took delivery. At the end of this test the blade edges were pristine, despite several rocky encounters. This is a very hard wearing paddle design which is much more resistant to damage than foam core blades from other manufacturers. The joint mechanism operated faultlessly throughout the test.

In conclusion, the VE Voyager seems to have found a real sweet spot for sea touring blade shape. It is an outstanding touring paddle. Despite a gentle catch it has a powerful, flutter free blade that allows both low and high angle paddling styles. I think the degree of flex in the fiberglass shaft compliments its intended use as a touring paddle and personally I am willing to trade a little extra weight for the shaft's greater flexibility. The ability to shorten the shaft at the end of a tiring day, on the water and without tools adds to its suitability as a long distance touring paddle. Lastly the ability to customise and tailor the design to your exact requirements by talking directly with the manufacturer and designer sure beats buying an off the shelf, mass produced product.

Specifications of the Euro paddles used in this comparative test:

VE Voyager AirCore carbon fibre blades, two piece, glass fibre, straight shaft 2.15-2.25m, 860g, blade area 642cm2, price as tested £294.00.

Compared with:

VE Explorer AirCore carbon fibre AirCore blades two piece carbon fibre straight shaft 2.00-2.10m 810g, blade area 615cm2

Werner Cyprus carbon fibre foam core blades two piece carbon fibre crank shaft 2.10 fixed 710g, blade area 615cm2

The VE Voyager AirCore (and Explorer AirCore) blades are available in carbon and the shafts are available in a wide variety of specifications: straight or cranked, in glass or carbon and indexed on either or both sides.

Further information at http://vepaddles.com and from info@vepaddles.co.uk

* Leif commented about using a slightly narrower grip for a low angle paddling style.

I originally got the tip about low angle grip spacing from Alistair Wilson of Lendal paddles in Scotland. He had competed in 1000m K1 sprint in the 1964 and 1968 Olympics. After he retired from Lendal he continued to paddle recreationally, covering large distances rather quickly. He had also changed his paddling style to a much lower angle than his former racing stroke. (The kayak is a very light 1976 K1.)