Pipistrel Sinus - Page 121

K i t M a n u a l f o r P i p i s t r e l S i n u s a n d V i r u s A i r c r a f t
 Continue preparing the windscreen and the sunroof by redrilling all the holes with a
4.5mm drillpiece. This is 0.5mm bigger than the rivets and will stop any cracks in the
lexan screens from developing due to engine vibration or temperature change.
 Using a countersinking tool, take the sharp edge off each hole at the top and bottom.
This will stop cracks from developing in the screen.
 Use a de-burring tool on the top and bottom of the screen and roof panel to give a nice
chamfered finish.
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