Geico266
Touchdown! Greaser!
I dynamically balance places for fun. I have a Dynavibe balancer that up to now has worked flawlessly and I have balanced 30 planes. I recently ran into a situation that is just plain weird. The last two planes have had weird "solutions" IE, large amount of weights to balance the plane.
All of the planes I have balanced took anywhere from 20- 50 grams of weight to balance. Some as rough as .45 IPS.
Plane #1. Never balanced before IO-360, 600 hours, recent tune up and carb overhaul and adjustment. First run .35 IPS. Added 70 grams of weights, now down to .14 IPS. Plane would not start for the last run so we left it at .14 IPS. Could not test fly it as the owners don't want to fly it without insurance.
Plane #2. Never balanced before IO-360, 20 hours on over haul. First run was .030 IPS, added 70 grams of weight to get it to .07 IPS. Cannot fly because we would need to modify the cowling to accommodate the weights.
I just don't feel comfortable adding this much weight! I called Dynavibe and they had me sent the unit back to them for testing and we will know tomorrow if it is in calibration.
The 70-80 grams of weight for 2 planes in a row cannot be coincidence.... or can it?
We will know tomorrow.
All of the planes I have balanced took anywhere from 20- 50 grams of weight to balance. Some as rough as .45 IPS.
Plane #1. Never balanced before IO-360, 600 hours, recent tune up and carb overhaul and adjustment. First run .35 IPS. Added 70 grams of weights, now down to .14 IPS. Plane would not start for the last run so we left it at .14 IPS. Could not test fly it as the owners don't want to fly it without insurance.
Plane #2. Never balanced before IO-360, 20 hours on over haul. First run was .030 IPS, added 70 grams of weight to get it to .07 IPS. Cannot fly because we would need to modify the cowling to accommodate the weights.
I just don't feel comfortable adding this much weight! I called Dynavibe and they had me sent the unit back to them for testing and we will know tomorrow if it is in calibration.
The 70-80 grams of weight for 2 planes in a row cannot be coincidence.... or can it?
We will know tomorrow.