SDS .Works well on the Avocet , just finished fuel burn /hr calibration , ;
25 , yes exactly /lts/hr circuit flying and local area . ( 3.8 hrs ) Various RPM settings .ALT not above 4000AMSL.
22.4 lt/hr Druidvale / Jaimstown / Loxton/Druidvale .( 4.4 hrs ) cruise 5,500 / 4,500 ft 2750RPM IAS 102 knts .
Method used ;
Start with drainrd tanks on level ground ,
Quantity of fuel added ,( full tank avgas ).
Timed flight , including taxi ,
Aircraft levelled ,
Fuel drained and measured ,
Calculations done ,
Mike