Larry,

I wouldn't use titanium for the nose gear scissors.  Back when I worked
for a living, all available titanium alloys ( including the favored
6Al4V) had a galling tendency even worse that stainless.  Maybe better
alloys are available today.  (We used titanium for the spoiler actuators
on the F-111, but went to extreme measures to avoid Ti/Fe contact.)

Dick Alden
L320, N425A