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			Oshkosh helicopters  by 			     
                Stu Fields
            
			
Well there was a tip jet (70% H202) ship there with one pilot with 20 min 
and a reported other pilot with a few hundred hours...
Sikorsky had a battery powered 269 on display with a duration spec of 15 
min.
Safaris, Rotorways and Mosquitos and Larry Neals Butterfly wrapped up the 
rotor craft.
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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			Helicopter pictures from the Antarctic  by 			     
                BERNIE THE BUNION
            
			
ENJOY FOLKS
I scarfed the link from an Australian aviation newsgroup.
Three pages of fascinating clear decent sized photos from a pilots
adventure in the Antarctic.
http://www.pprune.org/jet-blast/397397-ppruner-john-eacott-antarctica-stu
nning-pictures.html
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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			Undersling and 2/rev  by 			     
                Stu Fields
            
			
If an over weight pilot exceeds the recommended seat weight of his 
helicopter, will this affect undersling enough to cause an  increase in the 
2/rev vibration???  Does increasing G forces cause an increase in 2/rev??
Stu
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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			vibration measurement system  by 			     
                Stu Fields
            
			
I have heard that there is a down loadable application for the Iphone that 
can produce 3 axis vibration measurements and store them for analysis on my 
computer.  EEK!!  I said "How Much" and the guy said 499.  I said sold!! 
$500 is cheap for that capability and the guy said "No $4.99"!!!  I'm...
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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			Other Rotorhead Links  by 			     
                davh12
            
			
http://stingraysrotorforum.activeboard.com/forum.spark?aBID=126840&p=1
More to follow
Regards,
Dave
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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			February 2nd 11  10:25 PM
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			You guys missed a good one.  by 			     
                Stu Fields
            
			
Central Sierra Helicopter Meet was a grand success.  There were a couple of 
R-44s, several R-22s, Two Bell 47s and two Jet Rangers.  With all of the 
certified clutter out of the way, there were two helicycles flying, several 
under construction showing the various aspects, a Mosquito flying all...
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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			more new coinage  by 			     
                Stu Fields
            
			
POLTF:    Problems Obvious to the Least Tutored in the Field.
This is to be used with NHFY:  None Have Failed Yet.
NHFY is an industry accepted response to POLTF
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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			New coinage  by 			     
                Stu Fields
            
			
I've coined a new acronym that stands for a principle often used in the 
experimental helicopter community.  I have named it NHFY.  It stands for 
None Have Failed Yet.  It is a reliability measurement used by some that 
certainly needs close examination to ascertain the validity.  Some folks who...
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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			More Helicopter Aerodynamics by Prouty  by 			     
                Stu Fields
            
			
I'm looking for a used copy of Ray Prouty's More Helicopter Aerodynamics. 
Also for the copy titled Even More Helicopter Aerodynamics.  These issues 
are required for a research project I'm doing for the Experimental Helo 
magazine.
Thanks
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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			credibiltiy  by 			     
                Stu Fields
            
			
It seems that if there are two possible causes for a helicopter accident, 
the preferred one for the manufacturer is the one for which they have no 
fault. That certainly is the best for them.   However, lets say that a low 
hour helicopter suffers a failure directly attibutable to fatigue. ...
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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			new post  by 			     
                Stu Fields
            
			
I've been sending posts that didn't show up.  I've been sending e-mails to 
folks that never received.  I've been receiving e-mails that I couldn't 
answer.  We just replaced the cmos battery so we'll see if this gets thru..
Stu Fields
Experimental Helo magazine.
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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			Zyglo T62 compressor and turbine wheels  by 			     
                Stu Fields
            
			
Just completed checking the wheels of 84 Surplus Solar T-62 turbine engine 
sets of wheels for cracks.  Only found two turbine wheels with small cracks. 
No cracks found in the compressor wheels.  These engines seem to be quite 
sturdy.  We started several and looked at vibration levels with a...
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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			November 24th 09  03:00 AM
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			Piasecki crash  by 			     
                Stu Fields
            
			
Just got word of a Piasecki crash that involved Joe Pike and to other people 
who were on board.  Joe had re-stored the twin rotor ship.  Initial data 
seems to indicate an engine failure with the ship hitting power lines and 
burning. Joe was an outstanding wrench and pilot.  Joe did a BFR for me...
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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			USMC Huey Crash Photos  by 			     
                 Mike \Rotor\ Nowak
            
			
Hey All,
I just came across these photos and am curious if anyone knows the story of
what happened.  Weather sure looks clear so I doubt that had anything to do
with...
 
			
   
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			November 5th 09  03:18 PM
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			Volume II of Ray Prouty's Helicopter Aerodynamics  by 			     
                Stu Fields
            
			
I've got my copy of what turns out to be a
                MUST HAVE
addition to the Volume I work of the same title.  Few people can write 
clearly about a technical subject like helicopters without using a lot of 
mathematics.  Ray Prouty has a real knack...  I'm jealous....
see ...
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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			October 30th 09  03:19 AM
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			PHOTOS:  Rotorfest and PHL - October 04, 2009  by 			     
                DV
            
			
PHOTOS:  Rotorfest and PHL - October 04, 2009
Over 100 photos in this group.  The highlight at Rotorfest for me was
the Kaman K-Max and the Pilatus Porter jump plane. The clouds moved in
briefly in the AM and gave us a short-lived scare, but they burned
off. Plenty of copters and GA aircraft,...
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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			October 5th 09  11:08 PM
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			Helicopter crashes  by 			     
                Stu Fields
            
			
The Safari near Phoenix that crashed with the loss of two lives is now 
followed by a RotorWay in Vermont flown by Ronald York that crashed 
resulting in the Death of Mr. York.
The investigation of both accidents is pending.
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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			Turbine powered rotorcraft  by 			     
                Stu Fields
            
			
FAR 91.409 involves itself with requiring some sort of special inspection 
program for turbine powered rotorcraft.  Builders of Amateur Built turbine 
powered rotorcraft are being forced to generate some inspection program 
documentation to get the airworthiness certificate.  Nearly all of these...
 
			
   
			
		 
	 
	 
		
			
			     
		
		
		
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