Hi Bill,
 
I have experienced similar situations when holding the nose high with full back 
control position....It seems to take about 30 sec  to a minute of excessive 
nose high nose high position to occur. I believe it is due to loss of flow to 
the carb as the header tank is now level with or below the carb, preventing 
gravity fuel flow...... I show about 38 mph on the a/s indicator, with no 
actual stall until the engine quits.
 
I suspect this is the reason for the elevator restriction on D model coupes to 
9 degrees up, and may be worse in 85 hp engines. Wonder if it occurs with a 65 
hp coupe ??? 
 
Mine is restricted to 9 degrees up travel, but with the  bagggage compartment  
somewhat loaded, the CG is now far enough back to allow the excessive nose up 
condition.
 
Interesting, this may be the result of repositioning the fuel overflow line 
from the stand up tube, to the overflow vent placed on the rear of the header 
tank...perhaps resulting in a lower outlet  level...resulting in a slightly 
lower fuel level in the header tank than original specs...........
 
 
Fly Safe - Have Fun
 
 
Harry Francis
N93530

--- On Wed, 10/8/08, wbuhles <[EMAIL PROTECTED]> wrote:

From: wbuhles <[EMAIL PROTECTED]>
Subject: [ercoupe-tech] Power Loss in Dive
To: [email protected]
Date: Wednesday, October 8, 2008, 5:44 PM






Yesterday I did a power on stall and then let the nose drop into a 
brief dive. When I did this the engine lost power with a drop in rpm to 
1500, then it came back up quickly. Is it possible to stop fuel flow to 
the carb by pulling zero g's? Is there any other possible explanation? 
Runs OK otherwise.

Bill Buhles
N94157

 














      

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