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Ron: The numbers you have quoted are correct for the cable tensions. The
elevator tension is especially important due to the limited travel of the
elevator. The 415-C was born with 13 degrees of up travel, but when the D model
allowed gross weight of up to 1400 pounds, the elevator travel was further
restricted to only 9 degrees. This limitation becomes significant upon landing
when one finds that they are unable to raise the nose with the elevator as
airspeed declines below 70 mph. I believe this was the reason the D model did
not sell well, and why the split elevator was introduced on the E model.
If the cable tension is low, and control
bushings/bolts have some wear, the ability to keep the nose wheel off the runway
on landing touchdown can become a real problem. It is important to ensure the
cable tension is correct and elevator play is less than the allowed
amount.
I personally have seen several D model Coupes that
have considerably more travel than the 9 degrees up allowed. This may not be
legal, but it probably makes them a safer airplane.
Lynn Nelsen
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