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From: good@pixar (Craig Good: About a half a bubble off level.)
Newsgroups: net.aviation
Subject: Re: Out to dry on the glideslope
Message-ID: <2493@pixar.pixar>
Date: Mon, 24-Feb-86 12:09:53 EST
Article-I.D.: pixar.2493
Posted: Mon Feb 24 12:09:53 1986
Date-Received: Fri, 28-Feb-86 05:54:57 EST
References: <2473@pixar.pixar> <474@gcc-milo.ARPA>
Organization: Pixar -- Marin County, California
Lines: 27
Keywords: IFR glideslope safety

In article <474@gcc-milo.ARPA>, brad@gcc-milo.ARPA (Brad Parker) writes:
> ... 
> I'm just a low time VFR pilot (so I could be wrong), but isn't the usual
> procedure to intercept the localizer before following the glideslope down?
> Isn't it impossible to get on such "false lobes" for both? (this may be
> obvious given that they ended up "hanging out" ;-) )
> 
> IFR old salts - what's the story here?

( BTW, it was a 172, not a 152.  Sorry about that.)

	Not having my IFR ticket yet (quite) I can't call myself an "old salt",
but I have had plenty of chances to observe lobes on localizers.  They seem to
be more common than the lobes on the glideslope.  At any rate, in many of
the approaches we have flown during training we have intercepted the GS
*before* reaching the localizer.  This is actually quite handy since you
can already have the rate of descent established by the time you have that
other little needle to center.

	The only way to make sure you aren't on a GS lobe is to check your
altitude at the approach fixes, especially the outer marker (although there
are usually a couple of other approach fixes), against what it says on the
approach plate.  Of course, if an actuall salty old IFR pilot has another
method he'd like to share with us...

		--Craig
		...ucbvax!pixar!good