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- From: kirk@hpcc01.corp.hp.com (Kirk Lindstrom)
- Date: Mon, 16 Nov 1992 18:35:34 GMT
- Subject: Re: Hot Air = Big Sails?
- Message-ID: <4310537@hpcc01.corp.hp.com>
- Organization: Shredding the water of SF Bay, HP-OCD
- Path: sparky!uunet!wupost!cs.utexas.edu!sdd.hp.com!hpscit.sc.hp.com!scd.hp.com!hpscdm!hplextra!hpcc05!hpcc01!kirk
- Newsgroups: rec.windsurfing
- References: <56130002@hpsgm2.sgp.hp.com>
- Lines: 41
-
- >
- >This one may be a bit off the wall but should appeal to you physics types
- >out there. I do most of my sailing in Singapore. Our trades season just
- >started yesterday & usually lasts till about end Feb/March. Singapore is
- >sort of 100 miles north of the equator (hot, in other words).
- >
- >I've noticed that for a given wind speed, I use much bigger sails here than
- >I do in Maui or elsewhere. In marginal conditions, 7.5s & 8.0s are not
- >uncommon among the bigger sailors here. I've had some experience sailing
- >in the UK and that seems to reinforce my opinion that air density has
- >something to do with this. Does it make sense? Should air temperatures
- >affect density & thereby sail size? Note this is based on purely intuitve
- >notions, I haven't been running around measuring wind speeds etc.
- >
- >Sukhdev Singh
- ----------
- In Maui, people use smaller sail sizes for a given wind speed than we do
- in the Bay Area. The best I can figure is that the wind is much more
- consistant. I sailed Singapore one afternoon last February and i think
- the wind speed reported is closer to peak rather than average. It felt like
- a 5 knot day with gusts to at best 12 knots. I was on a rented pig with a soft
- sail, old boom, no foot straps and "tie some rope to the boom" harness lines
- and "sailed" (even slogged is kind) to the ships in the harbor. The police
- boat came out and gave me a good look-over (I guess to make sure I wasn't
- smuggling drugs in my harness, shorts, booties or helmet). I waved and turned
- back to shore. It was like sailing in bath water! Boy was that nice!
-
-
- Kirk (hope to try again with some "real" Singapore wind) out
- => "We are what we pretend to be." - Kurt Vonnegut Jr.
- +---------------------------------------------------------------------+
- | Kirk Lindstrom - OCD Product R & D | Hewlett-Packard Co. M/S: 91UA |
- | Engineer/Scientist, Hardware | |
- |------------------------------------| Optical Communication Division |
- | kirk@hpoclpa.hp.com | |
- | Kirk Lindstrom / HP0100/UX | 370 W. Trimble Rd. |
- | ph 408 435 6404 | fax 408 435 6286 | San Jose, CA 95131-1096 |
- +---------------------------------------------------------------------+
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