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Turbo Tiger

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GrummanDude

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

Posted: Wed Apr 12, 2006 8:30 pm Post subject: Turbo Tiger

I think it's Joe Bruer who has/had a turbo Tiger.   Correct me Cliff.   



What was it's cruise altitude and what did it true out at?

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_________________
Gary
AuCountry Aviation
Home of Team Grumman

923te(at)cox.net
Guest

Posted: Wed Apr 12, 2006 8:44 pm Post subject: Turbo Tiger

Gary,



It is Brad Brotherton that has the Turbo. Joe Bruer had an IO360 with a 

constant speed prop that he sold a couple years ago. THat plane is in 

Northern, CA now Miwuk Village owned by theHawk's



Brad's Turbo Tiger was a one time STC gained around '85 or '86 by Seaplanes 

something company near Seattle and when tey ent bankrupt the plane and or 

STC was auctioned off. This a little sketchy but that's the gist of it.



It has NOT flow for many years and is in  a very poor state of repair having 

sat outsidde a number of yeara with a broken nose strut torque tube and a 

run out engine and etc...



Brad told me he usually cruised at 175 mph. It had a fixed pitch prop which 

severly limited t but it was certified for 25,000'. My notes get a little 

sketchy here again but he mentioned he flew it once 215mph TAS at 18000' and 

calculated that at 25,000 it would do 230mph TAS



BTW, He won't sell it:(



Best Regards,

Ned

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jamey

Joined: 10 Jan 2006
Posts: 124

Posted: Wed Apr 12, 2006 9:11 pm Post subject: Turbo Tiger

<2 cents>

But he'll let it sit and deteriorate?  That's lame and seemingly idiotic.

</2 cents>



Jamey



--

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flyv35b(at)ashcreekwirele
Guest

Posted: Thu Apr 13, 2006 4:49 am Post subject: Turbo Tiger

No, it's Brad Brotherton.



Altitude is anything you want, but it can only really take advantage of the 

turbo during climb because of the fixed pitch prop, a Sensenich pitched to 

66" as I recall.  About 3" MP over atmospheric will overspeed the engine 

even with that pitch.  I had heard that at $25,000 ft. it was still climbing 

at 400 fpm.  It is faster than other Tigers down low due to the 66" pitch, 

probably pretty close to your plane, Gary.  The MT prop would be a very nice 

prop to try and should improve the cruise significantly at altitude.



Cliff

---

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flyv35b(at)ashcreekwirele
Guest

Posted: Thu Apr 13, 2006 6:26 am Post subject: Turbo Tiger

 	  Quote: 	
		   Brad told me he usually cruised at 175 mph. It had a fixed pitch prop 

 which

 severly limited t but it was certified for 25,000'. My notes get a little

 sketchy here again but he mentioned he flew it once 215mph TAS at 18000' 

 and

 calculated that at 25,000 it would do 230mph TAS


	


 	  Quote: 	
		  From what Brad told me I don't think it went anywhere near that fast at 

altitude.  It is very unrealistic to think that a turbocharged model of any 
	


plane will increase cruise speed by 55 mph from a normally aspirated optimum 

cruise altitude of 8000 ft. to 25,000 ft.  About 25 mph would be the most 

you would expect.  And that would be in line with what Brad told me that he 

expected 200 mph at high altitude.



Cliff

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