3、垂直度误差应满足： a)机长小于10米时，垂直度误差在6mm以内；

3. The verticality error should meet: <br>a) When the captain is less than 10 meters , the verticality error should be within 6mm; <br>b) When the captain is 10-15 meters, the verticality error should be less than 9mm. <br>Due to the installation site and other reasons, when the middle section is installed, it can be assembled by embedding the fiber tape in the connection flange hole.

3, vertical ity error should be satisfied with:<br> a) When the captain is less than 10 meters, the verticality error is within 6mm;<br> b) When the captain is 10-15 meters, the verticality error should be less than 9mm.<br>Due to installation site and other reasons, the middle section can be installed by embedding the fiber belt in the connection flange hole and then assembly.

3. The Perpendicularity Error shall meet the following requirements:<br>a) When the aircraft length is less than 10 meters, the perpendicularity error is within 6 mm;<br>b) When the captain is 10-15m, the Perpendicularity Error should be less than 9mm.<br>Due to the installation site and other reasons, the intermediate section can be assembled after embedding fiber belt into the connecting flange hole.<br>