[COUPERS-FLYIN] Next year's National Convention

[Ed Burkhead]

----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----   Was there a vote on where next year’s National Convention will be?   Ed Burkhead http://edburkhead.com/ [EMAIL PROTECTED]    -----Original Message----- From: Sydney Cohen [mailto:[EMAIL PROTECTED] Sent: Friday, June 27, 2003 8:16 AM To: Ed Burkhead Cc: Coupe-List Subject: Re: [COUPERS-FLYIN] morning group   Hi Ed,     I'm sure that our fuel figures are a combination of a lot of factors.  Actually, Dennis was exaggerating a bit.  I had 4.5 gallons/hour and he had 6.5.  Another Couper flew with us from Daytona Beach to Lawrenceville, GA, and his fuel consumption was a little worse than Dennis'.  Engine efficiency would also be a factor.     We missed you at the convention.     Syd Ed Burkhead wrote: ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----       Syd,   Those drag elements don't sound like enough to account for a 47% increase in fuel consumption.  Overly rich mixture on his engine (or overly lean on yours) or both might account for a big portion of the difference.   4.25 versus 6.25 is a BIG difference.   Ed Burkhead http://edburkhead.com/ [EMAIL PROTECTED]   -----Original Message----- From: Sydney Cohen [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 26, 2003 9:48 PM To: Greg Bullough Cc: [EMAIL PROTECTED]; Coupe-List Subject: Re: [COUPERS-FLYIN] morning group   Hi Greg,     Dennis' Coupe has more drag due to two large venturis as opposed to one small one on mine; landing lights on the gear legs, and I have none; a bubble windshield and mine is flat; more antennas than mine; and no nose gear fairing, but I have one.  Also, in order to go the same airspeed with the added drag, he would have to be turning more rpm.  I believe his tachometer reads low, maybe 100 rpm or more.  Neither of us leaned, and he didn't follow directly behind me, so I don't think he was making a lot of power adjustments.  I think the drag is the reason.  I don't know his empty weight, but remember, I was carrying a passenger and he was not.  His carburetor could be set richer too.  No, I don't have an EGT, but have had no problems with valves or oil temps.  In fact, my oil temps were usually about 10 degrees less than Dennis'.   Syd   Greg Bullough wrote:     At 10:46 PM 6/25/2003 -0500, Sydney Cohen wrote:       We both have D models, both have 85 hp engines, both have 71 x 48 props, both ran 2450 rpms, both flew at the same airspeed (we were together) and I had a passenger and Dennis didn't.  Explain that one if you can.  I can't.  But I'm happy. :-)         There can be one and only one explanation...Dennis is running a richer mixture.   Probably richer than necessary. That said, 4.25 gph at cruise is suspiciously towards the lean side of things except at 10,000 feet. Do you have an EGT?   Greg               ============================================================================== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers/             ============================================================================== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers/ ============================================================================== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers/