Newsgroups: rec.aviation.student
Path: news.jprc.com!newsfeed.sgi.net!nntp.flash.net!newsfeed.enteract.com!ix.netcom.com!mmallory
From: mmallory@netcom.com (Mark Mallory)
Subject: Re: Reverse Control vs Reverse Command
Message-ID: <mmalloryF6wIow.1xL@netcom.com>
Organization: ICGNetcom
X-Newsreader: TIN [version 1.2 PL2]
References: <36b9e3c6.0@news.netwalk.com> <36B9EE92.5BFDC870@sensor.com> <79fh9c$ohn$1@newshost.ihighway.net> <36BBD1AC.53E0@worldnet.att.net> <79m91h$ijm$1@newshost.ihighway.net> <79ms68$o67$1@news.mcn.net> <79nk0o$kke$1@nnrp1.dejanews.com> <mmalloryF6vEvp.MnH@netcom.com> <79pk9m$a6j$1@nnrp1.dejanews.com>
Date: Tue, 9 Feb 1999 19:12:31 GMT
Lines: 27
Sender: mmallory@netcom9.netcom.com
Xref: news.jprc.com rec.aviation.student:46764

snowbird101@my-dejanews.com wrote:
: I don't think you followed it very well then, since smack in the middle
: is a table of data for a number of airplanes, giving both Vbg and Vmr for
: each plane--and they differ.

Another inconsistency.  He states early in the article that Vmr and Vbg 
are the same, yet gives no explaination for why the POH values (those in 
the table) are different. 

: You're correct, he does not delve into the theoretical reasons why Vminpwr
: is not equal to Vmr, nor does he delve into the theoretical reasons why
: Vme is 0.83Vmr, but simply states that it can be shown and provides
: references.  It is allowed, to reference previous work and attempt to
: build upon it.

: However it is not clear to me that this is an "obvious inconsistancy".
: To conclude this, one would have to demonstrate that Vminpwr OUGHT to
: equal Vmr.  It is not clear to me a priori why this would be true.

Please, it's Vme, not Vmr.  Vminpwr (where engine power is mimimum) MUST be 
equal to Vme (max endurance), since engine fuel consumption (gph) MUST be 
lowest where power is lowest.  (Unless you've got an engine that gulps 
MORE fuel if power is *reduced*).

Again, his claim that Vme is .83 Vmr, but Vminpwr is .76 Vmr, is 
inconsistent.

