Constant Speed Propeller

I have 914 and MT cs. I don't see the value in maximum speed when travelling, but in endurance, which means that I set the propeller speed and Manifold pressure after the flow meter. I therefore usually fly around 4600 rpm 26" it gives me 100-104 kts / 13.5-14 l/h

The engine has been flown like this for over 1000 hours so it has not been overloaded

Hi Johan,

Thank you for your thought provoking experince.

What is the aircraft?

Have you arrived at this engine/prop setting, taking trip time into account?

My last aircraft, ATEC Zephyr/912ULS/Fiti Ground Adjust, cruised at 100-105 knots at around 5200 rpm. With full fuel & just me, I usually had  under 13L/hr. With a passenger 14L/hr. I flight planned at a conservative 15L/hr.

My current aircraft, Sonex Legacy/912ULS/Airmaster CS, my target cruise is 130 knots. As this discussion aludes I am still fine tuning the prop/MAP settings however am fairly confident of 14L/hr. Currently flight planning at 15L/hr. The 130 knot cruise is giving me a much reduced trip time, meaning that overall fuel consumption is similar to the Zephyr (especially in head winds).😈