From a short hop yesterday.... Turned on the 'ECO' (economy) data field on the top of my G3X (divides fuel flow into GPS ground speed). After about five minutes with the wind at a 90 degree angle I turned into the wind - mpg dropped to about 10mpg . Sorry for the blurred iPhone photo - it was bumpy.
As gas gets more expensive I'm thinking the occasional lunch trip down to see Mom will get 'best mpg power setting' instead of smallest fuel flow (which due to wind direction might not mean cheapest flying).
Question #1: Does prolonged flight at 16.9" (or lower) of MP hurt my engine if the CHTs and oil temps are in the green?
Question #2: What MP/RPM (not leaning) settings gets others the highest MPG?
1. 24.2 mpg economy
2. 138 kts ground speed
3. 126 kts indicated air speed
4. 27 kt winds from 190°true
5. 16.9" of manifold pressure
6. 51% power
7. 6.6 gallons per hour burning
8. 2490 rpm
As gas gets more expensive I'm thinking the occasional lunch trip down to see Mom will get 'best mpg power setting' instead of smallest fuel flow (which due to wind direction might not mean cheapest flying).
Question #1: Does prolonged flight at 16.9" (or lower) of MP hurt my engine if the CHTs and oil temps are in the green?
Question #2: What MP/RPM (not leaning) settings gets others the highest MPG?
1. 24.2 mpg economy
2. 138 kts ground speed
3. 126 kts indicated air speed
4. 27 kt winds from 190°true
5. 16.9" of manifold pressure
6. 51% power
7. 6.6 gallons per hour burning
8. 2490 rpm
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