Keith,
Item 1.
Generally the salt is dryer in the morning. The heat of the sun seems to
bring moisture to the surface. I seem to remember something from chemistry
regarding heating crystals and water being given off.
Item 2
whether the increased drag would negate the increased HP would depend on how
much drag you are generating in the first place.
Jim in Palmdale, where density altitude matters.
----- Original Message -----
From: Keith Turk <kturk@ala.net>
Subject: Re: Slugs
> Okay let me see..... Air density is a critical factor in determining
> Drag... and normally I would say it's not of consequence because we can't
> control it.... but the honest answer is we can by adjusting the time of
day
> we run.... ( good air day Vs Bad air day )
>
> We have talked about this Many times on the list.... Dave Dahlgren and I
> were chatting about it yesterday on the phone.... and we found several
> factors besides air which might attribute the Morning Passes to being
> slower then the afternoon passes. I'll pitch a couple of theory's out
and
> let Mayf give us his hypothesis on them ... ( someday I'll learn what that
> word means.... just dont' teach me now I like being ignorant )
>
> 1. The Salt is wetter in the morning then it is in the afternoon.? ( I
> think this is true.... any decenters?
>
> a. Wet salt provides worse traction
> b. Wet salt increases Rolling resistance
>
> 2. The air is denser in the morning.
>
> a. Dense air increases the drag because there are more slugs per mass
> volume of air.
> b. Dense air makes more Hp but not enough to over come the increased
> drag associated with the dense air.
>
>
> Keith
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