Pipistrel Sinus 503, Flight And Maintenance Manual

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SINUS motorglider
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SINUS motorglider
www.pipistrel.si
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WARNING!
Wing and propeller surfaces must be immaculately clean, dry and undamaged at
all times. As all airfoils are laminar any impact spots, bumps and even a dirty (incl. water, snow...)
surface may significantly lower flight performance. Stall speed, takeoff and landing runway
length, sink rates and fuel consumption increase, while climb rates, ceiling, lift-over-drag ratio
and endurance decrease. Some of the these are effected by as much as 30%!
Noise levels
Noise levels are measured from the ground. The aircraft at MTOM must fly over the microphone at a
height of 150 meters
(500 feet)
, exactly at VNE, with engine power needed to maintain horizontally
rightened flight. All versions of Sinus ultralight motorglider’ noise levels measured in such manner
have been officially assessed to be below 65 dB.
Performance