After nearly six years of splashing about, this week I gave my sun-faded Gumotex Sunny away to a mate and his kids. It was probably only worth £100. Coincidentally, Gumotex confirmed they’ve stopped selling the Sunny in Europe while introducing the new and near-identical Solar 410C.
In North America Innova (Gumotex importers) continue to sell the Sunny, although theboatpeople in California have taken it upon themselves to import the 410C direct from Gumotex alongside the slightly cheaper Sunny. There are stats on that model right here and a comparison with vaguely similar IKs here. I can confidently say I got my £220-worth out of my Sunny Gumboat since I bought it in 2006. It has at least as many years of use left in it and never failed in any way other than filling with water when the going got too rough. It’s a tough old boat and like your first decent car or motorbike, I’ll always have a soft spot for the Sunny for introducing me to packboat touring.
My only regret is I didn’t get a chance to try it out with my home made sail. Or keep it long enough to try out the hull-stiffening rods to see if they made any difference whatsoever. It’s an idea that may need doing on a Solar 410C. The Incept K40 is notably stiffer and in the pics and vid doesn’t appear to sag at all with me in it. Much of what I liked and disliked about my old Mk1 Sunny or the much-improved final Mk3 Sunny, will apply to the new Solar 410C. Be warned though, at 4.1m it might sag if you’re a solo bloater like me. The hull is covered in ‘Max 0.2 bar’ stamps but you can try giving it 5psi/0.3bar (50% more than recommended) to make it stiffer.
In 2013 I sold the Incept and went back to basics with a discontinued Grabner Amigo (above). Like the Incept, it’s rated at 5psi, but comes with no rudder, deck, PRVs, footrests or even seats to speak of. It’s what you might call a high-pressure (super rigid) Sunny or 410C.
Lashing points and loading One of the limitations of all old Sunnys is a lack of lashing points – something that an Aire Super Lynx or FC Java have plenty of. Early on, I tried to glue a few on with what I thought were the right materials and technique, but half have since peeled off. Now I’ve discovered Aquaseal or two-part glue I manage better.
Another IK limitation is that nearly half the actual width of the boat is taken up with air chambers, reducing the interior packing volume (if not necessarily payload) to less than a foot wide, especially with single side chamber boats like a Sunny (as opposed to twin-chamber bloats like Grabner H2s or Gumo Seakers). I have to say though, on the trips I’ve done – nearly a week along a tropical coast (above) with one resupply – the volume was adequate. It might not be the same story in a colder climate or when you need to carry more freshwater. The limits with the Sunny are weight as much as space; the freeboard is reduced and it swamps easily, which at sea can be a hassle if sharks are circling.
As is well known, the position of loads has an effect on what they call ‘trim’ – the level or balance of the boat. This also effects tracking (more critical without a skeg). In some pics you can see how my 95-kg weight sinks the boat in the middle. To counteract this I generally try to pack the heavy weights out at each end. Too heavy at the front is not so good for waves and rapids, but the Sunny swamps fast in these conditions anyway; it’s only on flat water that baggage positioning is noticeable.
I kept the cargo nets off my FC Java (left and above) and used those on the Spey river one time, a quick way of getting to your stuff which of course is one thing that IKs and SoTs do so much better than SinKs.
Trolley tech The Gumotex backpack/drybag is a pretty basic sack with thin shoulder straps prone to tearing, and no hip belt. You wouldn’t want to carry the 16-kilo Sunny and say, 10kg of camping gear and paddling gear more than a couple of clicks.
A £10/1kg folding trolley is a handy way of transporting an IK around rail stations or airports. It folds up neatly and fits on the bow (right). In fact, with a bit of adaptation, I wonder if it could make an upside down set of wheels for portaging? It’s nice and light but the wheels on this black trolley are too close together, or the load platform is too high so the load tips easily on rough pavements. And you get what you pay for: the tubing and construction are pretty flimsy. Protracted gumboat trolleying over rough surfaces and tracks will eventually mangle such a lightweight trolley (my second) so it needs to be treated carefully.
On the Haute Allier river in France I used a heavier-duty and wider trolley (4.2kg) that fitted well under the seat (left, with the old original Sunny seat). Where weight is not a limitation (on trains and buses), I’d use this one again, but with any trolley a wide wheel track is the way to go. It all depends how far you’re trolleying of course, and if it’s over rough ground.
Sometimes I wonder about an integrated backpack frame with wheels, or a wheeled bag with more handles. Part of the reason the OE gumbag is tearing is that when you trolley up to some stairs you can only yank it by the top clips or the backpack straps. It’s something to think about when your current gumbag rips to the point of no longer being a functional drybag. Even in good shape it’s not a serious dry bag, but what roll top is? There’s more on dry bags here.
A short slide show of an afternoon’s paddling we did a couple of years ago after the Spey. Jon in the Carolina found this route description in this book, winding in and out of a few islands and so never far from a shore which was fine by us. It’s hardly ‘out there’ but for us it was quite a step up, calculating the tides, wind, currents, UV refraction index and negotiating the swell that might have exceeded two feet at times – plus dealing with some dodgy rip on the way back that was there just where the route description said it would be. After the castle, coming back in between Shuna island and the shore, the wind or tide or something was against me while Jon glided effortlessly forth in his hard plastic boat. That’s the good thing with an IK, you get a free work out! All in all, a lovely October’s day on the Scottish west coast.
Here’s my gallery of a run down the Spey river we did one September in 2007; three days from Aviemore to the sea – about 85 kms or 53 miles, camping two nights. Me in my Sunny and a new dry suit, Steve in a Pouch tandem folding battleship, Dave in a Klepper folder and Jon in a red kayak made of rigid, hard plastic called a Carolina; quite robust and fast it was, but a bit heavy and not something he could transport easily on a bus. It remains to be seen if these ‘hard shells’ will catch on. The Spey is a famous Scottish canoe run; it’s also famed for salmon fishing and its malt whiskey distilleries. Although the river is said to be open all year to paddlers (see the online guide below for details), when an estate is charging an overseas tourist hundreds of pounds a day to fish off their banks, they don’t want you getting too close and upsetting the client’s concentration. As far as we knew we were there on the last weekend of the salmon season and only once got waved away from a bank of anglers.
That year the river was a bit shallow in places, though none of us quite needed to get out and walk. Even then my Sunny filled on a couple of occasions, despite some piffling rapids, so a dry suit was a good call. Jon was the only one to fall out which just goes to show what lethal boats these SinKs can be – that thing is less than 26 inches wide! It is of course very satisfying to follow a river down to the sea, watch it change and paddle right into to the waves (oddly the tides only reach in a few hundred metres at Spey Bay). Whatever boat you’re in it’s a great run with easy white water, and easy side access. Anything rated for a canoe is fine in an IK. ForDave unfortunately it all ended on the morning of Day 2 when his Klepper snagged on an embedded metal stake (an old fence post?) and ripped a foot-long hole in his hull. Kleput!
There’s a road close to the Spey all the way and he managed to get a lift back to his car and was there that night to drive us to the campsite in Aberlour, 2.5kms from the river. I do recall a very nice meal in the pub that night, in a bar with scores on malts lined up on the back shelf. Dave was also able to pick us up from Spey Bay where there’s a formica-era cafe. The nearest station is Elgin, about 13 miles away. You could packraft the Spey too; it would be fast enough and if you combine it with the Loch Morar stage I packrafted last summer down to Gairlochy, after a 40-mile transit up the A86 to Newtonmore (20 miles upstream from Aviemore) you’ve completed a ~150-mile Scottish coast-to-coast run; Atlantic to the North Sea. I know of a couple of packrafters who have done most of it, including these two guys in the freezing winter of 2009-10. Along with many other reports, there’s a detailed online guide here. Harveys make a waterproof map of the Speyside Way walk which of course follows the river closely.
Just like their bikes and many other things, in southern France those Frenchies dig their recreational paddling. Unlike the UK, they don’t care if it’s an inflatable, a canoe, kayak, packraft or two bin bags and a stick. And unlike England and Wales, (see green box below), no river permits or licenses are required; just adhere to sensible regs. Add the fresh food, good camping, inexpensive ‘creaky stair’ hotels, great weather, natural spectacle, easy access by rail or bus, plus beautiful medieval villages with weekly markets and you’ve got a great packboating holiday with as much easy white water action as you like.
The sorry state of paddling in England & Wales
Did I miss anything? Yes: the long-overdue second edition of Rivers Publishing’s guide (left) which originally opened up this area’s potential to me. Generally aimed at ‘family’ canoeing, Best Canoe Trips in the South of France has river descriptions so you don’t have to worry too much about what’s downriver. As a serious guidebook it could be better, so if you read French, Rivières Nature en France (right) has better maps and covers many more rivers.
Massif – loadsa rivers
Extending south from the city of Clermont Ferrand 200km to the former Roman colony of Nimes, the Massif Central is an undeveloped and relatively unpopulated upland region of extinct volcanoes and 1000-metre limestone pleateaux or causses. About the size of Belgium, the highest peak is the 1885m (6184ft) Puy de Sancy in the Parc des Volcans near Clermont. Now you know where all that Volvic mineral water comes down from.
Early morning train from Brioude.
Getting there from the UK The key airports to access the region include Clermont, Montpellier, Nimes, Lyon and Rodez with Easyjet, Ryanair and FlyBe, among others. Nimes is probably the most useful, but Easyjet (Lyon, Montpellier) has daily rather than weekly Ryanair flights with better prices when booked late. There are also fast TGV trains to Nimes via Paris, taking just 6-7 hours from London (red lines, left) but elsewhere or beyond, things slow down considerably as you head for the Massif (blue area on map, left), so it’s unlikely you’ll get to a river on the same day as leaving the UK. A train is a much more agreeable than flying of course, but even in summer and once you pay for baggage, budget airlines work out much cheaper and as fast or faster, depending on where you start.
Dordogne (red) then Vezere with the Mrs. My first French paddles in 2005. We took out at Tremolac, the first big barrage and 40km from the airport at Bergerac.
Rivers Take your pick from the easy Dordogne and Vezere, more challenging but easily accessed Allier, a Herault day trip, Tarn, Ceze, Chassezac which joins the Ardeche. Then there’s the Gardon and little-known but slightly greasy Lardon. Come August the biggest danger on the Ardeche is getting nutted by an out-of-control plastic rental kayak. In 2018 I did the Tarn again, from Florac all the way to Millau in a packraft, and a few weeks later the Allier too. Maps below from the Best Canoe Trips… and Rivières Nature guidebooks.
English guidebookFrench guidebook
They’re all fun in an IK provided the boat is not too long. With a long boat problems occur when the front noses into slower water or catches a rock, while the back is still in a fast current; the boat swings sideways, high sides and tips you out. In a slightly slower but much more stable and agile packraft I’d pick the frothier rivers like the Allier, the Tarn and Ardeche, because a packraft makes sub-Class 3 whitewater easy and safe. Packrafting the Tarn in 2018, I’m pretty sure I’d have struggled to control my 4.5-metre Seawave IK in some rapids.
But then again, packrafting the Allier a few weeks later, I was pleased I decided to walk round an 8-km gorge section of relatively sustained Class 3 rapids (left; a self-bailing Gumotex Scout) which would have swamped my Yak again and again. Here a decked or self-bailing packboat works better. And from what I’ve seen, two-up in a kayak or canoe makes things even more complicated unless both are experienced. If you do these rivers early in the season (June, July) there can be more flow, frothier rapids and certainly fewer crowds than early August. But summer storms can raise levels overnight.
Maps and river levels There’s a very good official website for live river levelshere with more about it here. For general mapsof France right down to 1:25k scale and beyond, have a search here, or download the IGN Rando app and download for offline use. As the Best Canoe Trips… guidebook says, IGN maps better than Google Maps, just as OS is in the UK. All that’s missing are markers identifying canoe chutes on the weirs.
Evening on the Allier
The rivers TheAllier is a good choice for packboating as you can get a train from Clermont via Brioude all the way to the village of Chapeauroux, where the easier section flows right back to Brioude. Note Alleyras to Monistrol is now open (see link) but beware the first 8km out of Monistrol to Prades through the gorge. Long version in the link above, but you’ll see it from the train coming upstream and may be alarmed, as I was in 2018, even though I’m pretty sure I kayaked it 12 years ago as a clueless newb.
The Ceze and Herault are car and shuttle-with-bike day trips. The classic Tarn Gorge starts from Florac (noon bus from Ales) and cuts 85km below the Causse Mejean to Millau with its famous viaduct just beyond. A great run with easy rapids, bar one or two not mentioned in the guidebook. Being out of the Massif, the Dordogne-Vezere (map above) are easier paddles, but iirc took me a bit of bus and train’ing after a Ryanair to Rodez and out from Bergerac. Perfect for your first IK adventure, but it could be slow and a bit dull in a packraft.
And if you don’t have a packboat or can’t be bothered to bring yours, no worries. Get down to a river and rent an SoT for as long as you like. It’s all set up for you. Click the river links for more galleries.
Eats, Chutes & Lodges On any big Massif river there’s a well-established riverside campsite and canoe/kayak/SoT rental scene, so that by August flotillas of holidaymakers pack out popular rivers like the Ardeche and Tarn. Plus, at any time you can pull over to wander through a village which will very often have a basic hotel from 40 euros, like the one left on the Allier.
Some of these rivers cut through spectacular gorges and are strung out with easy rapids up to Class III, weirs to portage round or tip over and which often have a glissiere or canoe chute (left and below) which shoot you down the face of a weir without the need to get out and carry. Great fun and often easier than they look. There are no locks until you leave the Massif and enter the intensively farmed lowlands by which time the fun is over.
A few years ago I got a batch of discounted Decathon Quechua ‘2 seconds 1’ pop-up tents (right; £20) for a desert tour I was running, and have a couple leftover. Now everyone’s offering cheap pop-ups. People love the idea and though I don’t suppose this is a tent you’d want on the north face of Annapurna in a gale, when you arrive at a camp tired after a day of desert biking, you just want to click your fingers and, Abracadabra, you have a cozy shelter to call your own.
Whoever came up with the idea of flexible hoops sewn into a 3-D form to spring apart and make a tent or shelter was ingenious. I still marvel at it today. It seems a photographer John Ritson got to idea of adding fabric to a flat loop in 1985 and invented the collapsible Lastolite light reflector (right) after he saw a carpenter fold the blade of a bandsaw (See the bottom of this page). I imagine a Lastolite (a 38-incher costs £50) was the motivation behind the WindPaddle idea, but from a plain disc to a tent is quite a leap.
So I took a knife to one of my used Quechua tents. Bad though it felt shredding a perfectly functional shelter, in the spirit of the Inca shaman, it will be reincarnated as a sail – or more ill-conceived clutter to shove under the bed. Dismembering the Quechua gives two giant hoops of 4mm nylon-coated alloy and another of 6mm. Having been told that WindPaddles can deform easily under strong winds, I chose the thicker wire to use for the hoop (Gallery pic 2, below) in the hope of reducing this possibility. (Warning: when opened up these springy wires can fly about all over the place). Cutting the thick loop in half and rejoining it with the metal collar/tube (don’t lose this bit) gives a hoop of around 40 inches or 1 metre diametre making a sail area of 0.785 m2 (8.45 ft2) – similar to a WindPaddle, but with negligible dishing. I built up the sawn-off end with some cloth tape to stuff into the collar-tube, and then taped it all up (so it’s easily undoable). There’s enough fabric in the main body of the tent’s flysheet (Gallery pic 1) to make two 40″ disc sails if you cut from the middle, so 1 tent fly = 2 sails. I only worked this out after I cut. You want to use each curved end of the flysheet with as much orange hem-sleeve as possible (Gallery pic 4) – it saves on sewing later. You don’t want, as I thought, the flat middle section which of course won’t become a smooth disc once formed into a loop with the wire. Gallery pics 5 to 9 show how to gather up the slack, trim it, tack it down and get the Mrs to sew it up as if she hasn’t got enough work to be getting on with at this time of year. Gallery picture 10 is the sewn-up sail with a handy gap at the bottom for I don’t know what and which also happens to coincide with the position of two little hooped tabs at 5- and 7 o’clock which you can use mount it to an Alpacka’s rearmost bow loops using mini snaplinks (Gallery picture 11). By chance there are 2 more sewn-on plastic rings at 10- and 2 o’clock to mount a control string. The length of string I used happened to be just right to wrap around the folded over tent, though it’s all under tension and pretty unstable; you might want something like a bulldog clip to stop the sail deploying unexpectedly. I also think my control string may be on the short side, but it’s what was lying around. My disc tent doesn’t have anywhere near the dishing (depth) of a WindPaddle or an umbrella-like spinnaker sail I am told. I still haven’t worked out if this is significant (it is). One would imagine a deeper WP-like sail – a ‘bowl’ rather than a ‘saucer’ – would be more stable downwind but less good at tacking across it (probably correct) but what do I know? Last time I sailed a boat was over 35 years ago. I suspect a flip-out disc sail like this is probably a compromise when it comes to sailing effectively, but then so are pack boats. If round sails were such a good idea the Vikings would have them. It may even prove to be not fully useful and so just more junk to carry about which is why, after trying the umbrella, I chose to make one for next to nothing rather than spend £140 ($215) on a WindPaddle in the UK. It was easy to make, is light (250g or 9oz), and it can swapped between my Alpacka packraft and Sunny IK in the time it takes to unclip 2 snaplinks and attach them elsewhere. Other uses include something to sit on, a doormat for the tent, a windbreak, sunshade or umbrella. There is a slight problem: you can’t see where you’re going, especially on the shorter packraft with a metre-wide sail a metre on front of you, but on most water that ought not matter too much and if it does, I can cut in a window (like a WindPaddle) if that is the sail’s only flaw. As to how it sails, Monday after Christmas had a good southerly wind and the warmest day for weeks (ie: above freezing), but the reservoir I chose was a rink and looks like it’ll be that way for a while. It’s been the coldest December in the UK since records began so a test run make take a few weeks to complete. To see how it sailed first time out, click this.
The best inflationvalves for an inflatable packboat aren’t the bungs you find on an airbed or an old Semperit. Nor the thin, twist cap stems off a Feathercraft Java or an old Alpacka. What you want are one-way valves. Like a car-tyre valve, one-way operation as well as a secureseal are the key, so what pumps in doesn’t push back or escape when you remove the inflation hose. Found on cheaper IKs and packrafts Boston valves are simple and effective for lower pressures. More below.
What I call raft valves (left) like Halkey Roberts, Leafield suit higher pressures and are needed for dropstitch panels. In America they’re called ‘military’ valves. With raft valves you either push and twist the button clockwise to lock open (deflating). For pumping up, push lightly and turn anticlockwise so the button springs back up to seal. This closed ‘button up’ position is the best way to transport an IK too. To lose a little pressure (say, the boat is getting hot in the sun) just jab the valve core button, same as on a car tyre.
Many raft valves are now ‘push-push’ (graphic left) which work like a clicking biro so are even easier to use. I always refit the cap seal straight away to keep water and grit out of the mechanism.
Two raft valves. On the left the collar goes inside the hull, the valve body screws into it tightly and the dust cap goes on top.
I’ve found these valves reliable on all my IKs, although this Gumotex 410C owner didn’t. Once in a while – or after the boat is new – you may want to check the valve is screwed tight against the fabric with the valve spanner, right. They’re also useful for removing the valve (or a PRV; see below) should it play up.
When it comes to inserting the inflation hose, a simple push-fit plug as shown below left can work; just jam the adaptor into the valve body and it usually stays in place while pumping. It looks cheap but on a Gumotex at least, works fine. With higher-pressure boats like Grabners and Incepts and some Gumotex (as well as dropstitch boats), the jam-fit can blow off so you’re better off using a bayonet fitting (below right) which won’t pop off as pressure builds.
Low-pressure valves for packrafts
Alpackas and even Feathercraft used to use crappy, soft plastic twist-lock oral stem valves (below left) which you could never be sure were done up just right and which didn’t take well to pump nozzles.I suppose they were a step up from blow-up airbed plugs (below) which are still found on cheap IKs.
Retractable one-way flap valve. Annoying to delateLilo plugs: Ok for seats, crap on a hull
Now best used on inflatable seats and the like, they’ve been superseded by similar one-way stem valves (below right) with a light spring closure easily openable by lung pressure. They’re a bit trickier to deflate: you have to depress the ‘X’ with a finger while squeezing out the air. The one below right is actually on a buoyancy vest.
Twist-Lok: OK for seats and old packraftsSpring valve one-way for higher pressure
Boston valves is a generic name for a one-way valve long used on cheap IKs as well as slackrafts and have now become common on packraft hulls. Note they’re widely copied and not all may be identical, like well-known branded IK valves. The square top cap screws onto the round valve body which itself has a knurled edge to easily unscrew from the hull port (below right). Here you attach your air inflation bag or open to quickly dump the air when rolling up.
Inflation: top cap removedRubber ‘mushroom’ valveDeflation: unscrew valve body
Ideally suited to low-pressure boats like packrafts, they use a simple rubber ‘mushroom’ valve on a stem (above middle). Once the main valve body has been screwed back into the hull, unscrew the square cap to finish the inflation process by either topping off by mouth or with a hand pump.
A one-way Boston-type valve eliminates the need for the old separate stem valve and the whole assembly has swivelling plastic lanyards so nothing drops away when unscrewed.
Pressure release valves (PRV) for some IKs
I’ve learned the hard way to be careful and not let an IK get too hot when out of the water. On a hot day you can feel the more exposed sidetubes tighten like a drum. This of course happens to be good for rigidity and paddling efficiency but isn’t good for the seams or an I-beam floor or the sewn seams of a cheap shell&bladder IK.
Oddly, not all Grabner IKs have PRVs which means…… faffing about with pressures on hot days.
The floor tube on my old Sunny had a pressure release valve – oddly it’s something rarely mentioned in the specs, even on current Gumboats. It’s there to protect the I-beam floor which could rupture inside under pressure (I-beam floors explained here). The valve is set to purge (open) at a certain pressure when the air inside heats up, expands and pressures rise. With Gumotex it is 3psi or 0.21 bar. It means an IK can feel a bit soft on a cool morning following a hot day; don’t worry, you don’t have a leak, it just purged some air when hot yesterday and in the cool air make sit a bit soggy. A quick top up is all you need to do. The handy thing with a PRV is that it makes a good guide to how hard you ought to pump up the other chambers of the boat without PRVs when you don’t have a pressure gauge. At whatever pump effort the floor PRV starts hissing, that’s the same or a bit more pressure to put in the side tubes which usually don’t have PRVs.
As mentioned, the air in an IK can also get cooled, for example when pumping up on a hot day and then putting the boat in a cool river: a normal scenario. Cold air contracts (loses volume/pressure). Because you want the boat to be as rigid as possible, after initial inflation it’s worth topping up again once the boat is in the water; splashing helps cool the sides. Topping up, or tempering as it’s called, optimises rigidity and with long, 2psi boats you need all the rigidity you can get. Conversely, pumping up your boat in sub-freezing temperatures then putting it on water which actually ‘heat’ it up, though this is a much less likely scenario.
A PRV purging correctly
PRV leaking from the sides not through the valve. Needs tightening with a special tool; a common necessity with hastily assembled new IKs.
My higher pressure Incept K40 had PRVs on all chambers which meant you could confidently leave it in the Sahara and it would safely purge then feel a bit soft once cooled down back in the water. Picture above: Incept PRV test with the protective cap removed and purging correctly through the centre. Below: a PRV being resealed after leaking from the edges (left). This was because I failed to check tightness after buying the new boat, as recommended by the manufacturer. (My Gumotex IKs never needed such tightening or checking in years ownership.) I ended up also fitting sidetube PRVs to my Gumotex Seawave to run higher pressures and the be able to leave it pumped up and out of the water for months at a time. Like any valve, PRVs can leak due to grit on the seal or a weak or sticking spring. Grit is not so unlikely when you think they can’t have a cap and have to sit on the floor of an IK, with water and sand occasionally swilling in and down into the body. Try removing the cap and blasting it out with air and maybe give the spring a squirt with 303 (UV protectorant). The best thing is to remove the PRV with the same valve tool, inspect and clean the sealing surfaces and reinstall.
Oddly, my old Grabner Amigohad no PRVs at all and neither do the latest Holiday models and a few other Grabners, even though all run higher than normal 0.3-bar pressures. One presumes Grabner are so confident in their construction they’re not needed, despite the warnings above. It should be included with the boats, but if your pump has no gauge, Grabner do pressure relief adaptors to fit on the hose (left) which purge at 0.3 bar, so dispensing with faffing about with a handheld pressure gauge. It’s a good idea.
My current Zelgear Igla 410 has closeable 0.25 bar PRVs on the twin I-beam sidetubes (below). The separate DS floor runs twice that pressure but has no PRVs. I find it’s actually quite handy to ‘lock in’ the air during cool transits or when getting into the water. When the paddle is over I open the PRVs which hiss a bit back down to 0.25 bar. I leave it like that until the next paddle when I top everything back up.
Lockable PRVs; quite handy actually
Another good idea are TRIB airCap live pressure monitors so your boat doesn’t end up like the Seawave left (actually an unexplained internal rupture while in the water). These TRIB solar-powered gadgets replace the valve cap on bayonet-type inflation valves like Halkey Roberts or Gumotex. One fitted securely an LCD display displays your pressures in psi, kPa or bar, a bit like TPMS for cars and motos. And like TPMS, you can even set a bleeping alarm at anything up to 20psi / 1.37bar. You need to make sure the seal is good and air is not slowly leaking out, but you can also use them as simple digital pressure gauges: twist on, measure and remove. Once fitted, you can watch as pressure drops after you put the boat in the water, and then seeing it rise out on a hot river bank. If I kayaked in a hot country (ie: not the UK) they’d be a simple alternative to the faff of installing PRVs. TRIB airCaps cost $40 in the US and the same in £s in the UK. The ribstore sells them.
The Aire Cheetah seat (left) turned out to be no worse than the inflatable original, but was a bit lighter – even though it weighs just over 2kg. I’ve also set it up so I clip the seat to the boat’s seat mounts (which originally used a knotted bit of rope) so I can take it out at camps or to dry/clean the boat. Plus, along with the box for a footrest (below), it’s one less thing to pump up.
Firm backresting was a problem with the OE seat; or to be precise, fitting points to hold the back of the seat upright as you push back with your feet. Because the support strap is attached from the seat top to the front seat base, as you lean bank it just pivots rather than supports. The 410C is much better in this respect. To cut a long story short, I imitated them by gluing mounts to the hull’s side tubes to attach to the seat top. This way the pulling force is in a better line and the seat doesn’t pull down. Some say though that the old-style seat have better back support than the plain Mk2/3 style Sunny seats. Since fitting on the side tube mounts (the real answer to this problem) I don’t think about the seat now which must mean it works. The Aire seat is still a bit heavy though.
Footrest The OE inflatable footrest pillow was non-adjustable (on the 410C it is) and always too far away to be effective, even for me at 6′ 1″, so I replaced it with a 5010 Otter box (left), which of course has uses to store stuff on the water.
However I then noticed the strain of me pushing back off the box was tearing the lower seat mount tabs glued to the hull (where the rope used to be). The box is now attached directly to the seat with adjustable slings. This way I now push inside a ‘closed loop’ made up of the seat and box, so only straining the sling and clip joins which make up the loop – and not the boat mounts. Of course this does mean there’s some energy-absorbing slack between me and the boat, but it’s a gumboat not a K1 racer alas, so will have to do.
Although I find I’m happy to paddle with my legs lying flat, when you want to go for it a firm foot brace and a bent knee are much better, but require a fairly solid seat to push against. The long box-to-seat strap loop seems to work OK and I discovered a side benefit; the straps can be pulled over my knees to make thigh braces (right); another possibly handy feature when the going gets rough. It’s not like bracing directly off the hull or anywhere near as good as with a SinK’s ‘underdeck’; it’s more to achieve good paddle thrust using the core not the arms which they keep telling you to do. And anyway, even in the roughest rapids I’ve done, the Sunny feels stable enough without thigh braces and if anything I prefer having my legs free to stick out to steady myself (or fall out neatly). The Sunny usually swamps long before things get hairy enough to tip it over.
As mentioned above, sometimes I feel with the Cheetah seat that my butt ought to be a bit higher. It’s also pretty heavy at 2 kilos (4.5 lbs). Now I’ve inherited a spare new-style Alpacka packraft seat (left), I may try and adapt it to fit the Sunny. The Alpacka seat is not half as robust as the OE Gumo Nitrilon seat so it needs to be supported in a way that won’t wreck it. I haven’t worked out how to do that is yet; maybe a stick across the hull like a Grabner, but that requires gluing. This seat will be higher than the Aire which is an important feature with kayaks: butt higher than heels is much more sustainable, comfortable and efficient for paddling, so you want to set a seat as high as you feel safe, bearing in mind CoG and stability as discussed here. The Alpacka seat also weighs just 220 grams (half a pound), saving nearly 1.5 kilos, or nearly 10% of a Sunny, and a bit of bulk… (but I got rid of the Sunny before I had a chance to work this one out).
Inflatable Kayaks & Packrafts 