REFLECTOR: prop vibration t est

[Brian Michalk]

I'm curious.
I've heard vibration testing is somewhat of a dark art.  If the tester 
doesn't know where to instrument, or what modes to look for, then it 
would be a waste of time.

Their product looks interesting.  The Contact article is surprisingly 
heavy on details; however that seems to be their only documentation.

I would be interested in seeing some of the vibe testing data on the 
prop comparing six cylinders vs four cylinders.

Milton Mersky wrote:
> Brian:
> 
> Vari Prop is requesting the expertise of Reflector members in establishing 
> an acceptable method of vibration testing.  Those methods would include a 
> test plan with proper instruments that would be acceptable by all. Insurance 
> would be part of the program.
> 
> Will you and your plane be availble?
> 
> 
> 
> 
> 
> ----- Original Message ----- 
> From: "Brian Michalk" <michalk at awpi.com>
> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> Sent: Sunday, April 27, 2008 1:55 PM
> Subject: Re: REFLECTOR: prop vibration test
> 
> 
>> What is the Vari Prop test plan?
>> What instrumentation do they use?
>> Would they provide insurance?
>>
>> Milton Mersky wrote:
>>> Larry Morgan, owner of Vari Prop, told me he is interested in securing
>>> vibration tests with his prop on a Velo.?
>>>
>>> Who in our group has the knowledge to offer expertise in an acceptable
>>> method of  testing.
>>>
>>> Who in our group will offer a Velo.
>>>
>>> Larry Morgan will supply the prop.
>>>
>>> Milt
>>>
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> 
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> 
> 
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