I love this thread.
Try this puzzle:
1) A part on a propeller that continually fails is considered
a) A minor problem
b) an annoying problem
c) a nuisance
d) a significant safety issue
D
2) When a responsible manufacturer of a critical airplane part suspects that a part may regularaly fail prematurely (prior to TBO) he/she should
a) do nothing
b) set up a tent at OSH to discuss with users who happen by
c) speculate as to the reason for failure and empirically propose a fix without intensive analytical testing.
d) try to identify and isolate the root cause (like electronic ignition) and develop a well engineered solution.
D
3) When the solution is developed (empiric, or as a result of analysis), the above company should
a) do nothing
b) hope that word gets around
c) put the fix only on new products
d) Wait until failure occurs in each end-user, then replace with re-developed product.
e) send out a mandatory service bulletin to each user.
E
4) At a cost of ~$7000, each user of a WW propeller is currently
a) a lab rat
b) a lab guinea pig
c) a lab rabbit
d) a lab chimpanzee
A,B,C,D
5) I have replaced the backing plates on my WW200RV 5 times. I number of hours that I have spent at this endeavor is at least
a) 4 hours
b) 8 hours
c) 12 hours
d) 16 hours
e) 20 hours
E
I hope I did not ruffle any feather with this. Great propeller performance, great blade design, good hub, significant issue with spinner security. This company needs to grow up and take responsibility for its product and start doing some testing that involves the use of a brain. Have you ever wondered why some propellers are approved for use in some configurations rather than others? Unlike Hartzell or MT, I do not believe that WW has ever performed any kind of vibration analysis or failure analysis to make these claims.
Last question:
6) When it rains, a turkey puts its head in the _______.
SAND?
Peace,
Jon Weiswasser
N898JW RV-8, 260h
WW200RV 190h