EarthBM

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Everything posted by EarthBM

  1. EarthBM

    Race to Alaska best boat

    And this is also the dirty secret why, $ for $, a 60' mono might be a better cruising choice than a 45' multihull. R2AK is a less than a week-log race... How many cats do better than hull speed on long RTW cruising voyages?
  2. EarthBM

    Rolex Middle Sea 2020

    O55 light, 2 MOD 70s, Paradox/Shockwave, a Multi50 and an Ultimo. O55 rating seems optimistic, Paradox’s rating seems favorable, MOD 70 match race should be fun, and the Ultime doesn’t even have a rating. with not much else going on, should be moderately interesting https://www.rolexmiddlesearace.com/entrants/?year=2020&race=5e25756baec57e0000a2a44c&category=5e25756baec57e0000a2a438
  3. EarthBM

    Rolex Middle Sea 2020

    Did something break on Shockwave?
  4. EarthBM

    Race to Alaska best boat

    Does anyone have pictures of the bicycle pedals setup on Mama Tried?
  5. EarthBM

    Assy vs Sym

    Is there a chance that a bowsprit + asymmetric spin + jib might outperform a poled out symmetrical spin downwind? A displacement 40’ cruiser/racer (Bene First40). 10-15kt TWS.
  6. EarthBM

    Rolex Middle Sea 2020

    Just via modeling it in software? Or actually trying things on the water? Is there a VPP so good that it can model waves, foil and sail drag/lift trade off, etc accurately? Or are those just paper gains so far?
  7. EarthBM

    Assy vs Sym

    Okay, what about same size a) assy+jib vs b) symmetrical? VMG downhill? Is there an established truth? Big$ ocean racers seem to use a), but they are reaching, short handed, and not in displacement mode (even without foils).
  8. EarthBM

    Assy vs Sym

    As large as it gets in both cases. Or, put another way, what relative kite sizes might result in a similar PHRF rating (I know, cue rating committee jokes).
  9. You’re right, was looking at the nearly identical pic:
  10. You’ve got to give them points for the tiller, no wheel on a 57’!
  11. EarthBM

    Last of the Gunboat 55’s

    Hadn’t realized they were so narrow - 25’ beam vs say 28’ in A55/57 that is a similar size and configuration. And 2 of those flipped. Could it have contributed to Rainmaker’s crew feeling unsafe and abandoning an apparently intact vessel?
  12. EarthBM

    Last of the Gunboat 55’s

    Vb 55 #9 STARR is on YW for $1.65m offered. Surprised about it being fitted with centerboards, but looks pretty high on its lines in the water and not stearn-heavy.
  13. EarthBM

    Boat 4 sale; not mine

    Why do you think that is? because you can push them more on a mono, given no risk of capsize?
  14. EarthBM

    Boat 4 sale; not mine

    Well, yes apart from the N2E and Transpac with Mighty Merloe, are there others? Fastnet and C600 had the same 2-3 MOD 70s fighting it out among themselves but no one else close on elapsed. Ultimes were built for trans-oceanic races. Were they ever in a race with MOD70s or ORMAs (not a rhetorical question, I really want to know)? Think their biggest race was 2018 RdR, where 2 finished close, 2 finished weeks apart, and 2 "retired". There is probably a way to put together an exciting race circuit with assorted one-time 'round the world record beaters, just doesn't look like anyone figured that out yet.
  15. EarthBM

    Boat 4 sale; not mine

    Mighty Merloe beating MOD70s is an interesting subject. I suspect that it’s down to the crew and local knowledge, but would love to hear more. Did it sell? Are there other races where MOD70s, ORMA 60s and Ultimes race together? I guess it would be informative to ask Tritium’s current owner why he’s selling and wants to do the next Transpac in a sled.
  16. EarthBM

    Boat 4 sale; not mine

    But you won’t... not boat-on-boat. New ones will kills the old ones. If absolute SOG per $ we’re the target I agree with you. But the target is SOG relative to others. The only honest race is fixed $ budget. Here’s $1m, first around the globe in one piece wins. And even there the resale value needs to be managed. A $1m budget where you’re okay to lose it all is more than $1m budget where you think you can sell what’s left for $500k.
  17. EarthBM

    Boat 4 sale; not mine

    Three general racing types: 1. One design or close (class 40, multi 50). The best resale. Think J-boats, Lasers, Figaros. 2. Cruiser-racer PHRF racers. Dual use makes resale okay due to cruisability. 3. Development, “no holds barred” racing. America’s cup, etc. The highest outlay for the least resale. If you’re not competitive anymore against other cutting edge boats utility drops to zero, or negative, considering the effort and costs.
  18. EarthBM

    Where is the limit on an f27/f28?

    If burying the lee ama is no big deal then you don’t have the critical information where it actually matters. Once the lee ama is submerged you’re in the negative stability zone (not as steeply negative as flying the main hull, but negative) — more heeling momentum brings less righting momentum. I think the right cruising tri design needs the amas sized so that burying one is the “oh shit” moment, not the “let’s see if I can ride this one out” moment.
  19. EarthBM

    Over the horizon

    Curious as to what the energy loss rate is for: a) hand-steering vs b) rowing machine to alternator to battery to auto-pilot chain. Looks like 80% loss? Like 40% at each stage? Soma and Dave — what are your real-time strategies for Gonzalo? Euro model says its nuthin’ (because it thinks it will hit land in Venezuela).
  20. EarthBM

    Over the horizon

    I was thinking it may serve an extra motivator for exercise... can also attach a rowing machine to it.
  21. EarthBM

    Over the horizon

    I always thought Tesla’s power wall was a way to eventually recycle old car batteries... Dave — you once said you have a stationary bike for cardio on board. Any thoughts of attaching it to a generator? Or it’s simply not enough KWHs for the hassle?
  22. EarthBM

    Over the horizon

    Hey soma, any reason you chose AGM over Li-po? And have you estimated the weight cost of A/C?
  23. EarthBM

    Is this what we have come to?

    Didn’t see many complaints about the same thing on Rapido 50 renderings:
  24. EarthBM

    AC45F Lux for sale

    How many athletic men in helmets does it need to launch and sail it? I’m sure it’s a nice boat, carbon fiber and all. But possibly an example of how the clearing price for old race multihulls might actually be negative. Which is a shame.