Turbine Engine Questions: Squealer Tips & Classified Weights?

PA32

I recently saw the terms "Squealer Tips" and "Classified Weights" in a text about turbine blades in an article on the Pratt & Whitney PT6A turbo-prop engine. Can anyone explain what is meant by these two terms? What are they and what do they "do"?

Pkruse

I would understand that to mean they got information from people with access to unpublished information, but without the authority or permission to release it.

AlephZero

Google will tell you what a squealer tip is. This must be a US term., I never heard of it on my side of the Atlantic. The idea seems to be a leftover from steam turbine design practice.

A classified weight is presumably the weight of something that is classified (i.e commercially confidential, or a military secret) information.

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PA32	Turbine Engine Questions: Squealer Tips & Classified Weights? I recently saw the terms "Squealer Tips" and "Classified Weights" in a text about turbine blades in an article on the Pratt & Whitney PT6A turbo-prop engine. Can anyone explain what is meant by these two terms? What are they and what do they "do"?

Pkruse	I would understand that to mean they got information from people with access to unpublished information, but without the authority or permission to release it.

AlephZero $Math 2012$ Recognitions: Science Advisor	Google will tell you what a squealer tip is. This must be a US term., I never heard of it on my side of the Atlantic. The idea seems to be a leftover from steam turbine design practice. A classified weight is presumably the weight of something that is classified (i.e commercially confidential, or a military secret) information.