<<
In a message dated 1/13/00 2:23:11 AM Eastern Standard Time,
[EMAIL PROTECTED] writes:
<<
Vertical dives cause rapid buildup of speed which puts much higher loads on
control surfaces which can cause control rods to bend. One wonders how many
of
these "vertical dive radio failures" were really radio failures. >>
Hi All, Just to add a little real world experience to this thread. Many
moons ago I owned a Top Flight Metric. This was a 2M built up ship with a
bellcrank for the elevator. As it was, when up elevator was applied, the
servo had to push the cable for up elevator. This I found out is only good if
the cable housing is attached the whole length of the fuse. How do I know
this? At Our Saturday fun fly, things got a little slow so we decided to see
how fast we could get down from altitude. After the first Sagitta shed a
stab, I should have recognized this as a bad omen. I started my dive back to
the field. A really aft CG tends to make the Metric tuck sending it into a
terminal dive. What then: simple pull back on the stick slowly and recover
the plane, NOT. Stick now buried in my belly, Nothing. Speed now approaching
Scary. Altitude, Also scary. In desperation pushed the stick full down. The
plane now does a couple of outside loops that amaze all in attendance. The
moral of the story is: SECURE those cables. This technique also saved a
friends Highlander who's fuse had become very flexible from to many dorks.
See Ya, Rich >>
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