Thursday, December 21, 2017

Finish Kit

LH Main Gear Mount ( 3 hrs )

Installed LH Main Gear Leg per Sect 40A-04.   Experience with RH Leg helped make this one a little easier to insert and align.  Still a tight fit.  Installing washers, nuts, tightening and then torquing all 8 various fasteners requires considerable time as each presented challenging access.  Toward end of session, I tightened nuts holding U1402 to Fuselage.  A few months ago during build of the Fuselage at Sect 29-03, Step 3 the instructions have builder "leave these loose for now".  So now was time to torque, along with all others in immediate area.   The aft two bolts use MS21083-N5 "shear" nuts.   These are thinner than AN365-524 nuts.   The thinner nuts save a few ounces for all 4, and are all that is needed for this shear joint.  But I applied std torque -- and stripped one.   I replaced with AN365-524 nut, which took full torque.  I will replace all 3 others as soon as I receive replacement AN365-524 nuts from Vans.
Overhead view of LH Main Gear Leg. 
Perspective makes exterior portion seem small, 



replaced thinner -N5 nut with AN365-524 Nut on
right.  Will replace other when more -524's received.