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Rivet Substitution

Fedico94

Active Member
I will drill a An470AD4-7 rivet from the inboard aileron brkt that holds the bracket to the rear spar. Van's said ok to use AD5 or Pop rivet
of equal strength. They gave no other suggestions. I looked at the rivet
information in AirCraft Spruce catalogue.
2117 AD4 has shear strength of 26,000 psi and Tensile Strength of 38,000 psi
1/8 inch rivet area is 1/83 of a square inch, therefore shear str is 313 lbs
and tensile is 457 psi.
This is equal to a 1/8 inch MS40 series Cherry pop (650 shear/525 tensile)
monel rivet with steel mandrel
or Cherry 5/32 BS19 series (525 shear/ 450 tensile)
aluminum rivet with steel mandrel
I did not get any information on Cherrymax. I have pulled these with my
pneumatic pop rivet unit without any attachments. Any suggestions at to which
of the above rivets are acceptable? Would prefer to Pop rivet than use gun
since it has been difficult to get this rivet in.
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