<< > I believe the point that Jeff was trying to make is that the many
radiator tubes
 > are thin-walled and full of this high inertia stuff called "water".
Shaking the
 > whole kit-n-kaboodle is likely to make the radiator welds fail.  So
instead of
 > mounting the radiator to the "Lamar special" engine mount (which isolates
motor
 > vibration at the firewall versus at the motor, and thus the "Lamar
special" motor
 > mount vibrates), mount the radiator to the aircraft structure.
 >
 > If one has a traditional motor mount (that isolates vibration at the
motor), then
 > I think Jeff is saying it is ok to mount the radiator to the motor mount.
 >
 > Did I get it right, Jeff?
 >
 > Since the rotary is smoother running than traditional piston engines, this
 > vibration may not be an issue after all.
 >
 > Russell Kent

 Yes.  Jeff Spitzer

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