Jeff Spitzer wrote:

At 07:11 PM 3/3/99 -0800, you wrote:

Archie Frangoudis wrote:

Thank you Jeff, But all you mentioned I am familiar with.
Have been balancing engines from fractionals to 5000hp.
for a number of years.
In many engines where there is not enough room internally
for counterweights, we eliminate the external weights and
with the use of tungsten, move this counterbalance physically
inside.

I am familiar with tungsten counterweights.  There is nowhere to put them
inside a rotary.

Jeff Spitzer

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