Posted for Harry League <harryleague@attbi.com>:

Bob,

In earlier days when I used to pylon race radio control miniature aircraft, we
had the same cracks develop on many parts of the airframe and propellors.   We
had a great deal of luck using crazy glue (the hobby store has several varieties
that were useful).  The trick was to make certain the plane was clean.    The RC
planes had a lot of oil because all of the engines back then were two cycle.
So, we had techniques to get rid of the oil soaked areas.   Once you make
certain that the cracks are cleaned out, try letting the crazy glue seep into
the cracks.   Do this several times letting the stuff fire off in between.
Then fill the low areas, sand, prime and paint.   It was fast and lasted a long
time.   If it was structural, we did the same thing but sometimes had to
reinforce the area but not always.   The fix was really tough and fast and also,
light weight.   Keep in mind that those miniature airplanes were tough, pulled a
lot more Gs than our planes will ever see and the vibrations were probably
significantly higher in frequency; however, they did not see the extremes of
temperatures or the altitude changes.   I tell you this because we used the same
plastics 22~30 years ago that are now used in Lancairs.   Hope this helps.

Harry League
IVpt soon