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2021-10-29; 16:03:51 EDT
Member Since
2020-10-30
Posts: 113
Thanks Roger! The first year I had my boat I used my traveler a lot based on what I'd read on how to use travelers. After that I got lazy and rarely unravelled it. Stan is sending me the never-ending traveler and I'm anxious to start using it to dump the main. Seems like a good idea. Lee 1999 Rhodes22 AT EASE Claytor Lake, VASee the original archive post
On Thu, Oct 14, 2021 at 9:14 AM ROGER PIHLAJA <roger_pihlaja at msn.com> wrote: > Hi Lee, > > I have 2 comments about your photo. > > > 1. You have obviously got the helm balanced as the boat is steering > herself! > 2. The control lines for your traveler should not be coiled up around > the traveler bar whenever you are flying the mainsail. The picture > illustrates one way to stow them; but, they are not ready to use. If you > need to quickly dump the mainsail, you have no choice but to use the > mainsheet. > > I don’t know what point of sail you were on. But, if it was close hauled > or a close reach, you would find the boat would go faster if you pulled the > traveler to windward and then adjusted the mainsheet such that the aft end > of the boom was just to leeward of the centerline. Given the rise on the > boom, it doesn’t look like your boat has a boom vang or you had it slacked > off. If you have a boom vang, it needed to be trimmed down tight until you > set the traveler and mainsheet. Then, you would slowly slack off the boom > vang until you had the desired amount of twist in the upper mainsail. > > Roger Pihlaja > S/V Dynamic Equilibrium > > > > Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows > > From: ROGER PIHLAJA<mailto:roger_pihlaja at msn.com> > Sent: Wednesday, October 13, 2021 7:29 PM > To: The Rhodes 22 Email List<mailto:rhodes22-list at rhodes22.org> > Subject: Re: [Rhodes22-list] Go Faster > > Hi Lee, > > It all depends if your genoa size is > 100% . If the genoa is greater > than 100%; then, it must go outside of the spreader. This means the sheets > run outside of the lifelines. The maximum you can trim the sail is such > that the windward side of the sail is just off the tip of the spreader. > You don’t want to trim it in any tighter because the spreader tip will > damage the sail in pretty short order. That’s where the term “close > hauled” come from – you have hauled or trimmed the sail as close to the > spreader tip as you dare. > > If the genoa is < 100%; then you would switch to the inboard genoa tracks > that run along the side decks. Now the foresail can be trimmed in tighter, > with the limit usually being rubbing up against the forward lower sidestay. > > On a beat or a close reach, the genoa usually operates in cleaner, faster > air vs the mainsail. Since the thrust generated by a sail goes up as the > [wind speed]^2, think of your genoa as the primary engine. That’s why your > boat went a little faster when you put out more genoa. Despite the name, > the mainsail’s primary function is to balance the sailplan so the helm is > close to neutral or even with a little lee helm. > > The Rhodes 22 is unusual among production boats in that it is possible to > adjust the feel of the helm from lee to neutral to weather. Most boats > have built-in weather helm because it is thought to be safer and you are > stuck with it. > > Because of the slot effect, it is not desirable to run the genoa and the > mainsail at the same angle of attack vs the wind. In general, you want to > establish your course 1st, then trim the genoa, and finally the mainsail. > The optimum mainsail trim will include slot effect interactions from the > genoa. > > Roger Pihlaja > ASM T767 > > Sent from Mail< > https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgo.microsoft.com%2Ffwlink%2F%3FLinkId%3D550986&data=04%7C01%7C%7C3351b5ff9ee947e4895708d98ea14f44%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637697645746981243%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=cleCZOpNXqFJe6IiLrSTKeK%2FT5K26fal%2B%2BDV1RImSlg%3D&reserved=0> > for Windows > > From: Lee Kuhn<mailto:lvjkuhn at gmail.com> > Sent: Wednesday, October 13, 2021 5:54 PM > To: The Rhodes 22 Email List<mailto:rhodes22-list at rhodes22.org> > Subject: Re: [Rhodes22-list] Go Faster > > Roger, > > See attached. When sailing on a close reach I typically balance the main > and Genoa so the helm is pretty neutral, but I've found that I can > sometimes go faster if I put out more Genoa which gives the boat lee helm. > Does that make sense? > > On boats other than the Rhodes, can't you sail closest to the wind when > your sheets are pulled as tight as possible? To have the angle of attack > hit both sails evenly on our boats, wouldn't you need to run the Genoa > sheets between the mast and inside shroud? > > Thanks. > > Lee > > On Wed, Oct 13, 2021 at 2:05 PM ROGER PIHLAJA <roger_pihlaja at msn.com> > wrote: > > > Hi All, > > > > The Rhodes 22 sails fastest and points highest if it is sailed with as > > little heel as possible and a slightly bow down fore/aft trim. > > > > The shape of the wetted surface of the hull becomes very asymmetric as > the > > angle of heel increases. Without going into the physics, this asymmetry > > tends to increase weather helm. It also adds lots more drag with > > relatively little increase in lift to windward. So, the hot setup is to > > sail as upright as possible. Note, because of the tendency to increase > > weather helm as the boat heels over, it is desirable to have as much sail > > area as possible in the genoa. This strategy keeps the center of effort > > (Ce) of the sailplan ahead of the center of lateral resistance (Cr) of > the > > hull. Adjust your IMF mainsail area to balance the helm while keeping > the > > genoa area as big as possible for the conditions. Use your genoa track > > lead position and backstay tension adjuster to adjust the shape of the > > genoa for the conditions. Be ready to dump the mainsail first in gusts, > > followed by the genoa if necessary to keep the boat on her lines. I like > > to dump the traveler to leeward; but, some people prefer to use the > > mainsheet. My experience is the traveler responds faster and keeps the > > mainsail shape closer to optimum. After the gust has past, the traveler > > allows you to trim the mainsail back in and working faster than the > > mainsheet. If the traveler doesn’t dump enough wind; then, you can dump > > some genoa sheet. > > > > The OEM standard roller furler doesn’t keep a good sail shape beyond the > > 1st few turns of the furling drum. It loses luff tension and the point > of > > maximum draft in the genoa moves too far aft. This is true even if you > > move the genoa sheet lead position forward on the track. ( As you should > > ) The resulting poor sail shape will dramatically affect your ability to > > point to windward. It also narrows the “groove” - the angle of attack > > between luffing and stalling the genoa, thus making the helmsman’s job > more > > difficult. Therefore, you want to fly a genoa that is matched to your > > conditions. That way, you will be able to fly it fully unfurled most of > > the time. For your conditions, it sounds like the 130% genoa is the best > > compromise. > > > > You need a slight bow down trim because the hull’s wetted surface aft of > > the fixed keel will start to act like a set of landing flaps on an > > airplane. There is so much wetted surface back there; that, the resulting > > drag is huge. A slight bow down trim allows the flow to smoothly exit > the > > stern with minimal drag. However, be careful with too much bow down trim > > because you still need enough floatation and freeboard in the bow to be > > able to punch thru waves. If the bow should happen to submarine; then, > > you’ve set yourself up to pitch pole. That’s nearly always the start of > a > > bad day on the water! > > > > There is also some adjustment possible in the fore/aft rake angle of the > > mast. Increasing the rake angle aft increases weather helm. Since we > are > > trying to decrease weather helm, we want to adjust the mast rake angle to > > give neutral helm or even a slight lee helm under light air. Note, that > > this will make the boat’s steering less intuitive for a novice helmsman. > > But, we are talking about a racing setup here and presumably an > experienced > > helmsman. Between the mast rake angle and the genoa/mainsail area > > distribution, you want the boat to have virtually no tendency to round up > > until the leeward rail is in the water. This will keep you climbing to > > windward as much as possible. > > > > Note that these adjustments are counter to conventional sail rig tuning > > wisdom. But, like Stan always says, “When it comes to the Rhodes 22, it > > pays to not listen to the experts!” > > > > If they have assigned you a PHRF rating of => ~260 sec/nm, your bottom is > > clean, the rig is adjusted properly, and your sails are in good > condition; > > then, your poor results are on you, not the boat. > > > > Roger Pihlaja > > S/V Dynamic Equilibrium > > > > Sent from my iPhone > > > > > On Oct 13, 2021, at 11:57 AM, Rick Lange <sloopblueheron at gmail.com> > > wrote: > > > > > > Hi Jeff, > > > > > > I respectfully disagree with much of what you said about weight on the > > > boat. > > > > > > The bow anchor and other weight forward, like the water tank, help with > > > pointing if you have IMF. In winds 15kt+, two crew forward on the rail > > are > > > needed to keep the boat flat at all points of sail. Reduce crew to > > minimum > > > allowed below 10kt. > > > > > > Regards, > > > > > > Rick Lange > > > > > > > > >> On Tue, Oct 12, 2021 at 6:44 PM Jeff Smith Photo < > > jeffsmithphoto at gmail.com> > > >> wrote: > > >> > > >> For Racing. > > >> Keep crew amidships and out of the cockpit. Even the helms person > > should be > > >> as forward as possible. If racing, take everything non essential off > the > > >> boat. Especially in the ends. Forward cushions can usually be removed. > > >> Check your PHRF rules; how many anchors and rhodes are required? For > > >> successful racers all weight aboard is the enemy! Especially in the > > ends. > > >> Think about your bow mounted anchor and the rhode in the lazarette. > > Success > > >> in racing involves a ton of small improvements. > > >> > > >> Best Regards > > >> Jeff Smith > > >> > > > https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.http%2F%2FJeffSmithPhoto.Net&data=04%7C01%7C%7C3351b5ff9ee947e4895708d98ea14f44%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637697645746981243%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=l7E6YB%2BDS7Mk3H0x1RoYIyPEgbpo%2FHe113isMqp7%2BDg%3D&reserved=0 > > >> 732-236-1368 > > >> > > > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: Boat without Captain.jpg > Type: image/jpeg > Size: 1527676 bytes > Desc: not available > URL: < > https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Frhodes22.org%2Fpipermail%2Frhodes22-list%2Fattachments%2F20211013%2F971de525%2Fattachment.jpg&data=04%7C01%7C%7C3351b5ff9ee947e4895708d98ea14f44%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637697645746981243%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=mpybdgx%2FSIM8bieEuK%2BCIosGdrKHnZjQkzVLa7Rlaz4%3D&reserved=0 > > > >
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