Is there any experience-based rule for erosive burning in cylinderical-type
grains (Bates, Finocyl, etc.)? I am particularly looking for experience as
to how small the core diameter can be as a percentage of grain diameter:
50% appears to assure no erosion at L/D of 10:1 or less, what about 33%?
When does overall length begin to play? I know that around 15:1 will lead
to erosion with a 50% core diameter, for example. What is the "critical"
length at 33%? What about other core diameters?
Bill
