Backfire F5F, Руководство пользователя

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BackfireF5F Page 13
3 Wing
3.1 Horns and Pulls
We glue the levers
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belonging in the flap in the distance of 7,3mm from the axis of
rotation and the levers for wings in the distance of 4,4mm from the axis of rotation. The
lever of the flap´s servo will have the hole in the distance of 7,3mm
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from the axis of
rotation and the lever of the butterfly´s servo in the distance of 3,0mm
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. The pull for the
flap is 38mm long and for the wing 29mm. The pull is made of steel wire with the diameter
1,5mm and of brass lumber with the diameter 2mm. We cut c. 2mm of thread in the brass
lumber and we bend the lumber in the shape of the letter L and we finish the thread. The
thread should be c. 5mm long. We bend the steel wire only and the length of the bend
should be c. 5mm too. We roughen the places which we are going to solder by using an
emery paper. In the lever of the flap´s servo we cut the M2-thread and we glue up the
female screws. It is necessary to grid down the servo shaft by the lever of flap.
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I recommend to complement the levers with the brass case with the diameter 2,5/1,52mm
and the length 4mm
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when the lever of the servo and the flap have the same distance, then by the servo-deflection of 90° the
flap-deflection is 90° too
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when we use this proportion, the wing-deflection is c. 8mm by up motion and c. 6mm by down motion