Hi Steve,
No "easy" answer.
415-C Upper skin on horizontal stabilizer...AN426-3-3. I believe these
would be described today as AN426A3-3, a flush head "Universal Soft"
rivet of 1100 grade aluminum with a tensile strength of 16,000 PSI.
The 415-C wing outer panel tip skin was attached to its reinforcement
with AN426 AD-3-3 rivets. These are flush head "Universal Hard" rivets
of 2117 aluminum heat treated to the T4 condition with a shear strength
of 26,000 PSI and a tensile strength of 38,000 PSI.
Forney Fuselage skin to stringers...AN470 AD3-4. These are round head
"Universal Hard" rivets of 2117 aluminum heat treated to the T4
condition with a shear strength of 26,000 PSI and a tensile strength of
38,000 PSI.
..
415-C Firewall to rearward stiffeners...AN470 AD3-5. (same as
preceding, different size).
415-C Tail Fairing originally assembled with GLM25-2-AD3-3 and 3-4
rivets.
415-C Window stiffeners had spot welds and AN450C8D8 and D6 rivets.
Obviously there are many others...
Have fun ;<)
WRB
--
On Oct 9, 2009, at 21:23, finkelma wrote:
I was looking closely at my Forney the other day after one of my
structures classes and it occured to me the rivets looked wrong. My
rivets all look like 470 A rivets rather than AD. I could not see any
dimples, and the colour looks like pure aluminum rather than 2117T3.
I can't find any reference to the rivets in my parts manual and I know
some of you have copies of original drawings that show more details.
So my question is....what are the rivets that hold my plane together??
Steve Finkelman
Edmonton Alberta Canada
