Carf-Models SIAI Marchetti SF-260 Construction Manual page 5

CARF-Models SIAI Marchetti SF-260 www.carf-models.com
Please don't ignore our warnings, or those provided by other manufacturers. They refer to
things and processes which, if ignored, could result in permanent damage or fatal injury.
Attention !
This large-scale aircraft is a high-end product and can create an enormous risk for
both pilot and spectators, if not handled with care, and used according to the instructions.
Make sure that you operate your Model according to the AMA rules, or those laws and
regulations governing the model flying in the country of use.
The engine, servos and control surfaces have to be attached properly. Please use only the
recommended engines, servos, propellers, and accessories supplied in the kit.
Make sure that the 'Centre of Gravity' is located exactly in the recommended place. If you
find that you need to relocate your batteries or even add weight in the aircraft to move the
CG to the recommended position, please do so and don't try to save weight. A tail heavy
plane, in a first flight, can be an enormous danger for you and all spectators. Fix any weights,
and especially heavy items like batteries and fuel tanks, very securely to the plane.
Make sure that the plane is secured properly when you start the engine. Have at least 2
helpers hold your plane from the tail end, or from behind the wing tips, before you start the
engine. Make sure that all spectators are behind, or far in front, of the aircraft when running
up the engine.
Check for vibrations through the whole throttle range. The engine should run smoothly with
no unusual vibration. If you think that there are any excessive vibrations at any engine rpm's,
DON'T FLY at this time and check your engine, spinner and propeller for proper balancing.
The low mass of all the parts results in a low physical inertia, so that any excess vibrations
could affect the servos and linkages.
Make sure that your wing tubes and stab tubes are not damaged. Check that the anti-rotation
pins for the horizontal stabilizer are located correctly in their holes, and are not loose. Check
that all linkages and clevises are securely connected to their respective servos and control
horns.
Check that the M6 wing retaining bolts are tight, that the M3 bolts retaining the horizontal
stabilizers on to the carbon tube are installed and tight, and that the hinge tubes for the
rudder and elevators cannot come out.
Make sure that you range check your R/C system thoroughly before the first flight. It is
absolutely necessary to range check your complete R/C installation first WITHOUT the
engine running. Leave the transmitter antenna retracted or use the especially range
reduction-function of your 2,4MHz-Radio, and check the distance you can walk before 'fail-
safe' occurs. Then start up the engine, run it at about half throttle and repeat this range
check with the engine running. Make sure that there is no range reduction before 'fail-safe'
occurs. Only then make the 1st flight. If you feel that the range with engine running is less
then with the engine off, DON´T FLY UNTIL YOU FIND OUT THE CAUSE!
If you don´t find the cause please contact the radio supplier and the engine manufacturer and
DON'T FLY at that time.
If you carefully checked all the points above and followed our advice exactly, you will have a
safe and successful first flight - and many hours of pleasure with your CARF SIAI Marchetti
SF-260.
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