Received: from zonker-fddi.hpl.hp.com by opus.hpl.hp.com with SMTP (1.37.109.8/15.5+ECS 3.3+HPL1.1) id AA07532; Mon, 18 Apr 1994 15:23:18 -0700 Return-Path: <poulton@zonker.hpl.hp.com-DeleteThis> Received: by zonker.hpl.hp.com (1.37.109.8/15.5+ECS 3.3+HPL1.1) id AA18755; Mon, 18 Apr 1994 15:23:13 -0700 Date: Mon, 18 Apr 1994 15:23:13 -0700 From: Ken Poulton <poulton@zonker.hpl.hp.com-DeleteThis> Message-Id: <9404182223.AA18755@zonker.hpl.hp.com-DeleteThis> To: wind_talk@opus.hpl.hp.com-DeleteThis Subject: Re: Coyote 4/17/94
> I agree that there is an illusion of more wind appearing upwind.
> However, at Coyote, there is often more wind upwind. On several
> occasions, I have found the wind up near the airport to be one to two
> sail sizes stronger than the wind further down wind. By "up near the
> airport" I am referring to the area east of that long red pier and
> continuing out toward the bird cage. Ever notice how it is often much
> windier at Flying Tigers than at Coyote?
Sure, because you're also going NE across the wind, toward the middle of
the wind channel. The long red pier is about a mile upwind, but it is
also 3/4 mile across the wind. Tigers is 2 or 3 miles cross-wind,
sitting near the middle of the wind channel formed by the San Bruno gap.
> When sailing up near the airport, you should always pay attention to the
> wind conditions down wind and near the launch site. The differential in
> wind speed can be so great that you can be fully powered near the
> airport but not have enough wind to even waterstart in the area down
> wind and closer to the beach. This has happened to me a couple of
> times. On one occasion, I actually had to swim in to the beach.
Yup. Been there. Swum that. But that wind line exists up at the runway
as well - remember the day Scott was going to take video and there was
only enough wind to plane in the last 100 yards next to the runway?
Ken
This archive was generated by hypermail 2b29 : Mon Dec 10 2001 - 02:27:15 PST