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The last flight test. Again.

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GrummanDude

Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA

Posted: Sat Jun 27, 2009 10:30 pm Post subject: The last flight test. Again.

Using instrumented mags, complete with thermocouples, plus three extra TCs measuring the ambient temp in the area if the accessories, we did two climb tests from sea-level to 12,500 feet. Â The max temperature, corrected for 100 degree day, was 190 degrees. Â Yea, like I'm ever going to see 100 degrees at 12,500 feet. Â  

 

  Anyway, from what I understand, the temperature test on the mags was the last hold-up for the STC. Â We'll see.

  

 

  By-the-way, I flew alongside Jeff Keesaman and his Tiger with the new cowling, from Lancaster to Auburn last Thursday. Â Using my 430 to determine TAS, and with him running about 2780 rpm, he was truing at 152 knots TAS. Â 

  

 

  One thing of note: Â Jeff's airspeed indicator was about 5 knots slower than mine. Â We need another Tiger to compare airspeed indicators.

  

 

  Confucius say, "If a man has a watch, he'll always know what time it is. Â If he has two watches, he'll never be quite sure."

  A Good Credit Score is 700 or Above. See yours in just 2 easy steps! 

  [quote][b]

_________________
Gary
AuCountry Aviation
Home of Team Grumman

flyv35b(at)minetfiber.com
Guest

Posted: Sun Jun 28, 2009 6:22 am Post subject: The last flight test. Again.

 By-the-way, I flew alongside Jeff Keesaman and his Tiger with the new  cowling, from Lancaster to Auburn last Thursday.  Using my 430 to determine  TAS, and with him running about 2780 rpm, he was truing at 152 knots TAS.   

  

 What prop pitch?

  

  



 [quote]   ---

az_gila

Joined: 17 Jun 2006
Posts: 99
Location: Tucson, AZ

Posted: Sun Jun 28, 2009 7:10 am Post subject: The last flight test. Again.

Gary... the three direction run method at 

cardinal headings and using GPS ground speeds is 

probably a much more accurate way of getting a 

good TAS reading, than the GNS-430 

calculation.  Three runs stabilized at the same IAS is all that is needed.



With the neat web application here, the 

mathematics involved is reduced to zero...:^)



http://www.reacomp.com/true_airspeed/index.html



gil A



 	  Quote: 	
		  By-the-way, I flew alongside Jeff Keesaman and 

his Tiger with the new cowling, from Lancaster 

to Auburn last Thursday. Â Using my 430 to 

determine TAS, and with him running about 2780 

rpm, he was truing at 152 knots TAS. Â

Discover

Joined: 26 Feb 2007
Posts: 429

Posted: Sun Jun 28, 2009 7:26 am Post subject: The last flight test. Again.

I'm curious. What else has Keesman's Tiger had done to it to help increase speed?



On Jun 28, 2009, at 9:18 AM, "flyv35b" <flyv35b(at)minetfiber.com (flyv35b(at)minetfiber.com)> wrote:



[quote]   By-the-way, I flew alongside Jeff Keesaman and his Tiger with the new cowling, from Lancaster to Auburn last Thursday.  Using my 430 to determine TAS, and with him running about 2780 rpm, he was truing at 152 knots TAS.  

  

 What prop pitch?

  

  



 [quote]   ---

jkeesaman(at)mac.com
Guest

Posted: Sun Jun 28, 2009 9:52 am Post subject: The last flight test. Again.

65-63-61



Thanks,  Jeff Keesaman

  m: 619 518 0597

  [url=mailto:jkeesaman(at)mac.com]jkeesaman(at)mac.com (jkeesaman(at)mac.com)[/url]

On Jun 28, 2009, at 7:18 AM, flyv35b <flyv35b(at)minetfiber.com (flyv35b(at)minetfiber.com)> wrote:



[quote]   By-the-way, I flew alongside Jeff Keesaman and his Tiger with the new cowling, from Lancaster to Auburn last Thursday.  Using my 430 to determine TAS, and with him running about 2780 rpm, he was truing at 152 knots TAS.  

  

 What prop pitch?

  

  



 [quote]   ---

flyv35b(at)minetfiber.com
Guest

Posted: Sun Jun 28, 2009 12:07 pm Post subject: The last flight test. Again.

What's that, the last three blade stations with the  outboard one being 61" pitch?

 [quote]   ---

GrummanDude

Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA

Posted: Sun Jun 28, 2009 7:35 pm Post subject: The last flight test. Again.

magic propeller dust 

 

 

 --

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Gary
AuCountry Aviation
Home of Team Grumman

flyv35b(at)minetfiber.com
Guest

Posted: Mon Jun 29, 2009 4:56 am Post subject: The last flight test. Again.

Gary found a prop shop that will bend the prop the way  he wants it rather than  2by the book 2.

 [quote]   ---

GrummanDude

Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA

Posted: Mon Jun 29, 2009 8:21 pm Post subject: The last flight test. Again.

It's experimental

 

 

 --

_________________
Gary
AuCountry Aviation
Home of Team Grumman

flyv35b(at)minetfiber.com
Guest

Posted: Tue Jun 30, 2009 6:52 am Post subject: The last flight test. Again.

Along with some magic Lycon dust, pistons,  etc.?

 [quote]   ---

GrummanDude

Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA

Posted: Tue Jun 30, 2009 8:11 am Post subject: The last flight test. Again.

no, that was Jeff's 76 Tiger running what is basically a 63 inch pitch prop. Â  

 

 

 --

_________________
Gary
AuCountry Aviation
Home of Team Grumman

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