OPERATION MANUAL
SILA 450 c
AERO EAST EUROPE
Date 01.09.2015.
Revision 00
Page | 37
PERFORMANCE
5.3.4 TAKE OFF MEASUREMENT FROM A DRY, SHORT – MOWN GRASS SURFACE
Take – off measurement from a dry, short – mown surface are performed and data in table 5
– 6, ant it’s only can be used for take – off from short distances.
Figure 5 - 6
5.3.5 EFECTS ON FLIGHT PERFORMANCES AND CHARACTERISTICS CAUSED BY RAIN OR
ACCUMULATION OF INSECTS
During the rainy weather, flight characteristics decreasing because aerodynamic
characteristics of airplane and decreased visibility, and huge accumulation of insects on
windshield and lift surfaces can also cause decreasing of aircraft characteristic. There is
predicted pre – flight inspection of these surfaces.
5.3.6 DEMONSTRATED CROSSWIND PERFORMANCE
For crosswind performance see chapter 4.4 and 4.4.8. Next figure showing demonstrated
and recommended crosswind, frontal wind and tail wing performances.
SILA 450 C
Crosswind
Frontal wind
Tail wind
Demonst.
Recomm.
Demonst.
Recomm.
Demonst.
Recomm.
45 kmh
30 kmh
83 kmh
50 kmh
28 kmh
15 kmh
Figure 5 – 7
CAUTION
Performing of flights in wind conditions over recommended values can increase risk to
significant level and shouldn’t be performed at any circumstances
5.3.7 NOISE DATA
Measuring of noise level is performed in Germany by Deutche Aero Club(DAeC) engineers
and SILA 450 C meets all requirements and standards according to German Airworthiness
Requirements LTF – UL.
Measured noise level is around 59.42 dB DAeC.
SILA 450 C
Take – off run
Take – off with obstacle 15 m
Flaps take off position
90 m
190 m
