Today had a failure of my RD-1B gear drive.  It couldn't have happened at a
 better time, I was just taxiing off the runway at my home airport.  I just
 finished flying 200 mi. to Santa Paula to help Paul with the getting of
 Mike
 Wills airplane back into the air.  Flight home was otherwise unevenful and
 beautiful.  I didn't bother taking it apart, but will do so tomorrow.
  Feels
 like I may have broken the sun gear pin again but will have to wait until
 tomorrow to be sure.  The strange thing is that nothing particularly
 stressed it.

 Sorry there is not cause I can report... a little suspense until tomorrow.

 --
 David Leonard

 Turbo Rotary RV-6 N4VY
 http://N4VY.RotaryRoster.net
 http://RotaryRoster.net

 We had a big go around about that years ago.
 I know you had that happen before. Do you remember
 what changes you made?

 You are on the cutting edge Dave with that high power turbo.
 Michael Hart, You might need to add another pin on yours.
 If necessary send it to me and I will have Jim Poole do it.

 Paul Lamar




Mine used to be a rosette weld, and that was the early failure.  I thought
the pin would fix it.  Now your are probably right, I will need 2 pins.  20B
users will probably want 2 pins as well as anyone turbo.  That is, assuming
that pin shear was my problem...  Fatigue causing the pin to shear?