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Pelle

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About Pelle

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    Göteborg, Sweden

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  1. The problem with box rules is that the gain in performance to be found by excessive spending at the design/research-stage is large enough to make even a talented self build effort non-competitive. My guess is that the top class 40's have spent more on CFD than the actual cost for building the boat.
  2. I'd agree...in the J-boat world the J/88 and (not the least) the J/111 are much better light air boats. Even a J/109 with an overlapping genoa would be better.
  3. I have only seen the SF3300 and the J/99 on boat-shows and without having sailed the boats my opinion is maybe not worth much but in my eyes the SF3300 is an weapon for double-handed offshore racing, especially in a breezy venue. The J/99 seems like a better all-rounder and with a nicer (but still simple) cruising interior. If the rating difference in your location is 20 sec/mile that almost certainly favors the J/99 as the difference in GPH in ORC seems to be around 10 seconds only. I also suspect that the J/99 is a better ORC-boat than the SF3300 so in a mixed course in light/medium air the
  4. Rule 49 may be changed by class rules and the Melges 24 class rules do that. The rule situation when a Melges 24 sails under a handicap rule depends on the handicap rule. I'm not that familiar with IRC but I believe that if a boat has its IRC-certificate issued as a OD-cert then the relevant OD-rule applies. Anyhow I also think hiking straps is a better solution than the Melges potato sack hiking....
  5. The syms are built for the 3.55 SPL. Horses for courses indeed. The Pogo is quite worthless W/L but works well for DH distansen racing which is what I enjoy.
  6. Boat is a Pogo 8.50, J is 3.05, SPL 3.55, asyms are set on a retractable sprit, STL 4.40. The key is to restrict the asyms to the sprit. One should also know that the effect is quite boat specific in orc so for accurate answers you must run trials for the boat in question.
  7. I am of another opinion. From last year (or possibly since 2019) you can opt to restrict your Asyms to be used on the sprit only. Since then the effect on rating seems quite reasonable in my eyes (if you restrict asyms to the sprit. I ran 6 trials on my boat with different configs according to the table shown. Adding the A2, A3 and C0 to the symmetricals increases the rating by about 1% mostly driven by the code. Areas on the sails are S2 72 sqm, A2: 90 sqm, A3 71 sqm, C0 45 sqm.
  8. The inherent problem with Airmar speed sensors is IMHO that the paddle wheel is quite small resulting in a quite nonlinear speed response due to the boundary layer thickness varying with speed. In simple instrument systems where you only can set one calibration factor that results in speed reading is correct at only one speed. The DST810 is interesting because it can handle multi point calibration both as a function of speed and heel which previously only was available in advanced instrument systems as the H5000.
  9. I built the tillers myself. They are carbon om foam core so pretty light. I like the racegeek as the display has very good visibilty. I bought it for use on a J70 I used to race with but now its mostly used as a repeater to the nke instruments and for the startline funktions.
  10. And tempt you with a little video https://photos.app.goo.gl/idkgCSEaPbDM6L7n8
  11. My freshwater system is a couple of 20 litre cans that couples to a foot pump. 2 can fits under the pentry bench. I have a 55 litre compressor box. that fit on shelf in the aft cabin. All quite simple but works for me,
  12. I have been racing my Pogo 8.50 since 2015 with a fair bit of success (in DH-racing) under our local rating system that admittedly is a bit kinder to this style of boat than ORC. That said I had, before the Covid mess, planned to do some ORC racing this year and I analysed the ORC ratings quite a bit and my conclusion is that an 8.50 in correct configuration can work well DH in ORC. Full crew is much more difficult. It is a really charming boat to sail but that said it is hard work to get max performance from it (as it needs big sails and a lot of sail changes) and it has its limitations. Even
  13. The 9-axis needs a multigraphic or the new multidisplay I'm afraid. The older 3-axis Regatta compass works with the older displays. I'm sure that the standard compass could work OK because mine did for many years before starting to act up...I would try to borrow another compass sensor In order to see if that could improve your situation.
  14. I just saw this thread. I also have a Pogo 8.50 and my pilot that behaved in a similar manner but not as severe. I traced the problem ( I think) to the (standard fluxgate) compass sensor. First I managed to borrow a regatta compass sensor to test and then I bought the new 9-axis compass sensor. After getting that to work properly (I needed to upgrade to the latest Multigraphic display software which took a bit of time to find out) the pilot calmed down.
  15. I have both.we race shorthanded both inshore and offshore...the asym is faster in light air both due to better aerodynamics but mainly because it forces you to sail correct angles. Above 10 kn I get very similar VMG from both my S2 and A2 but the flexibility of the symmetrical spinnaker is king, especially inshore among the islands. I actually find it easier to handle the symmetrical when solo (gybing etc) but then I have a reliable autopilot. 2 handed its no issue gybing the symmetrical even in 20 kn +.
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