Tail drive parts maintenance/replacement (delrin)

[KenChoo]

Hi all,

Quick question on the delrin cups that are a part of the tail drive. How often do you guys replace them due to excessive wear? (If at all).

Cheers,
Ken

[DavidH]

I have been flying MA helis since 1994. In that amount of time I have never replaced a drive coupling due to wear. Only time they were replaced is they were broke in a crash or the shaft was bent.

David

[KenChoo]

Cool...thanks David.