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I know this can be one of those points that will be proven many times over. Some will prove the efficiency of altitude flying. Others will prove the inefficiency of it. To each his own here. I will however say that in an aircraft that is power challenged to begin with, and that (on a good hot summer day) takes 30 minutes to an hour to reach high altitude, and that once you reach that altitude you have to maintain full throttle just to stay there for the next hour or so, high altitude flying isn't practical or efficient unless you have that strong tail wind. Larry ----- Original Message ----- From: "Ed Burkhead" <[EMAIL PROTECTED]> To: "MAGIC VAC" <[EMAIL PROTECTED]>; "Coupe-Tech" <[email protected]> Sent: Tuesday, January 28, 2003 7:02 PM Subject: RE: [COUPERS-TECH] Re:"0200 conversion" > > Larry, > > You're right in that winds are important. But high altitude IS efficient > and MUCH more so if you can lean the engine. For cruising, please read > chapter 19, "The Working Speeds of an Airplane" and chapter 20, "Thin Air" > in Stick and Rudder by Wolfgang Langewiesche. This is the definitive > information. > > Ed Burkhead > http://edburkhead.com/ > [EMAIL PROTECTED] > > -----Original Message----- > From: MAGIC VAC [mailto:[EMAIL PROTECTED] > Sent: Tuesday, January 28, 2003 12:55 PM > To: Greg Bullough; [email protected] > Subject: Re: [COUPERS-TECH] Re:"0200 conversion" > > ----[Please read http://ercoupers.com/disclaimer.htm before following any > advice in this forum.]---- > > > I've never found flying at high altitude to be efficient. Full throttle, > but getting 55% power, and having to continually be in climb mode just to > keep you there doesn't equate out to efficient flying. On the other hand, a > hell of a tail wind will offset those other problems really fast. > > Larry > > > ----- Original Message ----- > From: "Greg Bullough" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Tuesday, January 28, 2003 5:44 AM > Subject: Re: [COUPERS-TECH] Re:"0200 conversion" > > > > ----[Please read http://ercoupers.com/disclaimer.htm before following any > advice in this forum.]---- > > > > > > At 11:05 AM 1/27/03 -0800, Maynard Smith wrote: > > >Cruising up high isn't about the wind, it's about efficiency. > > > > When winds aloft at 12000 hit 40 or 45 knots... > > > > ....one way or another, it's about the wind. > > > > :-) > > > > Greg > > > > > ========================================================================== == > == > > To leave this forum go to: http://ercoupers.com/lists.htm > > > > ========================================================================== == > == > To leave this forum go to: http://ercoupers.com/lists.htm > ========================================================================== ==== To leave this forum go to: http://ercoupers.com/lists.htm
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