REFLECTOR: RG nose strut pivot tube

[Scott Derrick]

Wow!

What caused that?  Really hard landing? In a 60 knot crosswind?

Inquiring minds want to know?
 
Scott

Kent Murley wrote:
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> I have one of the oldest XLRGs and my A&P is putting in another new
> nose strut. This latest failure was a ruptured pivot tube, up away
> from the gussets.
>
> On my new strut I'm considering welding in place a larger steel tube
> (with cut-outs for the gusset) outside each end of the pivot tube. We
> could even cut out fish-mouths to extend the tubes around the actual
> strut, but I was wondering about the heat treating.
>
> Would it be better to weld only to the pivot tube and gusset to try to
> not hurt the strut's heat treatment or would that be undone anyway
> with heat transfer? Would you then go ahead and weld right to the
> strut also since it would need to be re-heat treated.
>
> Am I making re-fried beans or does one extra heat treatment not
> degrade it's overall strength too much?
>
> Do we normalize the whole area first and heat treat the whole area
> again after the fix?
>
> Anyone else beef up this area?
>
> I feel sorry for Greg and anyone else outside of north america - even
> just three time zones away from Florida kills me in down time.
>
> Thanks,
>
> Kent Murley
> Tacoma WA
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